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Organic Light Emitting Diodes

　

Publications in 2008|2007|2006|2005|2004|2003|2002|2001|2000

 

Publications in 2008

  1. Z.Q. Gao, B.X. Mi, H.L. Tam, K.W. Cheah, C.H. Chen, M.S. Wong, S.T. Lee, C.S. Lee, “High Efficiency and Small Roll-Off Electrophosphorescence from a New Iridium Complex with Well-Matched Energy Levels”, Adv. Mater. 20, 774-778 (2008).  (February 2008).
  2. H.M. Liu, P.F. Wang, J. He, C.J. Zheng, X.H. Zhang, S.L. Chew, C.S. Lee, J. Chang, S.T. Lee, “High-efficiency endothermic energy transfer in polymeric light-emitting devices based on cyclometalated Ir complexes”,  Appl. Phys. Lett. 92, 023301 (2008)  (January 2008).
  3. Z. Peng, S. T. Tao, X.H. Zhang, J.X. Tang, C.S. Lee, S.T. Lee, “New Fluorene Derivatives for Blue Electroluminescent Devices: Influence of Substituents on Thermal Properties, Photoluminescence, and Electroluminescence”, J. Phys. Chem. C.  112, 2165-2169 (2008).
  4. Q.X. Tong, S.L. Lai, M.Y. Chan, Y.C. Zhou, H.L. Kwong, C.S. Lee, S.T. Lee, “High-efficiency nondoped green organic light-emitting devices”, Chem. Phys. Lett. 455, 79-82 (2008) (March 2008).
  5. F.L. Wong, M.Y. Chan, S.L. Lai, M.K. Fung, K.H. Lai, W.M. Tsang, T.W. Ng, C.O Poon, C.S. Lee, S.T. Lee, “Lifetime improvement of organic light-emitting diodes using silicon oxy-nitride as anode modifier”, Thin Solid Films, in Press.
  6. J.X. Tang, C.S. Lee, M.Y. Chan, S.T. Lee, “Enhanced electrical properties of pentacene-based organic thin-film transistors by modifying the gate insulator surface”, Applied Surface Science, In Press

 

Publications in 2007

  1. X.J. Zhang, X.H. Zhang, W.S. Shi, X.M. Meng, C.S. Lee, S.T. Lee, “Single-crystal organic microtubes with a rectangular cross section”, Angew. Chem. Int. Ed. 46, 1525 –1528 (2007). (February 2007)
  2. M. Y. Chan, S. L. Lai, K. M. Lau, M. K. Fung, C. S. Lee, S. T. Lee, “Influences of Connecting Unit Architecture on the Performance of Tandem Organic Light-Emitting Devices”, Adv. Funct. Mater. 17, 2509-2514 (2007).  (September 2007)
  3. J.S. Wu, W.M. Liu, X.O. Zhuang, F. Wang, P.F. Wang, S.L. Tao, X.H. Zhang, S.K. Wu, S.T. Lee, “Fluorescence Turn On of Coumarin Derivatives by Metal Cations: A New Signaling Mechanism Based on C=N Isomerization”, Org. Lett.; (Letter) 9(1), 33-36 (2007).  (January 2007)
  4. Q.X. Tong, S.L. Lai, M.Y. Chan, K.H. Lai, J.X. Tang, H.L. Kwong, C.S. Lee, S.T. Lee, “Efficient green organic light-Emitting devices with a nondoped dual-functional electroluminescent material”,   Appl. Phys. Lett. 91, 153504 (2007).
  5. Q.X. Tong, S.L. Lai, M.Y. Chan, J.X. Tang, H.L. Kwong, C.S. Lee, and S.T. Lee, “High-efficiency nondoped white organic light-emitting devices”, Appl. Phys. Lett. 91, 023503 (2007).
  6. S.L. Tao, C.S. Lee, S.T. Lee, and X.H. Zhang, “Efficient blue and white organic light-emitting devices based on a single bipolar emitter”, Appl. Phys. Lett. 91, 013507 (2007). 
  7. M. Y. Chan, S. L. Lai, M. K. Fung, C. S. Lee, and S. T. Lee, “Erratum: “Doping-induced efficiency enhancement in organic photovoltaic devices” Appl. Phys. Lett. 90, 023504 (2007).   
  8. S. L. Lai, M. Y. Chan, M. K. Fung, C. S. Lee, S. T. Lee, “Efficiency enhancement and voltage reduction in white organic light-emitting devices”, Appl. Phys. Lett. 90, 203510 (2007)  (May 2007)
  9. M. Y. Chan, S. L. Lai, M. K. Fung, C. S. Lee, S. T. Lee, “Doping-induced efficiency enhancement in organic photovoltaic devices”, Appl. Phys. Lett. 90, 023504 (2007).  (January 2007)
  10. Q.X. Tong, S.L. Lai, M.Y. Chan, K.H. Lai, J.X. Tang, H.L. Kwong, C.S. Lee, S.T. Lee, “High Tg Triphenylamine-Based Starburst Hole-Transporting Material for Organic Light-Emitting Devices”, Chem. Mater. 19, 5851-5855 (2007).
  11. J. X. Tang, C. S. Lee, and S. T. Lee, “Electronic structures of organic/organic heterojunctions: From vacuum level alignment to Fermi level pinning”, J. Appl. Phys. 101, 064504 (2007).   (March 2007)
  12. S. L. Lai, M. Y. Chan, M. K. Fung, C. S. Lee, and S. T. Lee, “Copper hexadecafluoro-phthalocyanine and copper phthalocyanine as a pure organic connecting unit in blue tandem organic light-emitting devices”, J. Appl. Phys. 101, 014509 (2007).  (January 2007)
  13. S.L. Chew, P.F. Wang, Z.R. Hong, H.L. Kwong, J.X. Tang, S.L. Sun, C.S. Lee, S.T. Lee, “Photoluminescence and electroluminescence of a novel green-yellow emitting material–5,6-Bis-[4-(naphthalene-1-yl-phenyl-amino)-phenyl]-pyrazine-2,3-dicarbonitrile”, Journal of Luminescence 124, 221-227 (2007).   (June 2007)
  14. W.F. Xie, K.C. Lau, C.S. Lee, S.T. Lee, “Transparent organic light-emitting devices with LiF/Yb:Ag cathode”, Thin Solid Films 575, 6975–6977 (2007).   (June 2007)

 

Publications in 2006

  1. K. C. Lau, W. F. Xie, H. Y. Sun, C. S. Lee and S. T. Lee, "Contrast improvement of organic light-emitting devices with Sm:Ag cathode", Appl. Phys. Letts. 88, 083507 (2006).

  2. S. L. Chew, P. F. Wang, O. Y. Wong, Z. R. Hong, M. X. He, R. Q. Zhang, H. L. Kwong, J. X. Tang, S. L. Sun, C. S. Lee and S. T. Lee, "Photoluminescence and electroluminescence of 3-methyl-8-dimethylaminophenazine", Syn. Metals (in press, 2006).

  3. F. L. Wong, H. Y. Sun, S. W. Tong, M. Y. Chan, C. S. Lee and S. T. Lee, "Performance enhancement of organic light-emitting diode by heat treatment", J. Crystal Growth 288, 110-114 (2006).

  4. J. X. Tang, C. S. Lee and S.T. Lee, "Chemical bonding and electronic structures at magnesium/copper phthalocyanine interfaces",  Appl. Surf. Sci. (in press, 2005)

  5. S. W. Tong, K. M. Lau, H. Y. Sun, M. K. Fung, C. S. Lee, Y. Lifshitz and S. T. Lee, "Ultraviolet photoelectron spectroscopy investigation of interface formation in an indium–tin oxide/fluorocarbon/organic semiconductor contact", Appl. Surf. Sci. (in press, 2005)

 

Publications in 2005

  1. S. L. Tao, Z. K. Peng, X. H. Zhang, P. F. Wang, C. S. Lee and S. T. Lee, "Highly efficient non-doped blue organic light-emitting diodes based fluorene derivatives with high thermal stability", Adv. Funct. Mater. 15, 1716-1721 (2005).

  2. J. X. Tang, C. S. Lee and S. T. Lee, "Electronegativity model for barrier formation at metal/organic interfaces", Appl. Phys. Lett. 87, 252110 (2005).

  3. J. Y. Li, D. Liu, Y. Q. Li, C. S. Lee, H. L. Kwong and S. T. Lee, "A high Tg carbazole-based hole-transporting material for organic light-emitting devices", Chem. Mater. 17, 1208-1212 (2005).

  4. J. Y. Li, C. W. Ma, J. X. Tang, C. S. Lee and S.T. Lee, "Novel starburst molecule as a hole injecting and transporting material for organic light-emitting devices", Chem. Mater. 17, 615-619 (2005).

  5. S. D. Wang, X. Dong, C. S. Lee and S. T. Lee, "Molecular orientation and film morphology of pentacene on native silicon oxide surface", J. Phys. Chem. B 109, 9892-9896 (2005).

  6. J. R. Gong, L. J. Wan, S. B. Lei, C. L. Bai, X. H. Zhang and S. T. Lee, "Direct evidence of molecular aggregation and degradation mechanism of organic light-emitting diodes under joule heating: an STM and photoluminescence study", J Phys. Chem. B 109, 1675-1682 (2005).

  7. S. L. Sun, C. S. Lin, R. Q. Zhang, C. S. Lee and S. T. Lee, "Calcium/poly(9,9-dioctylfluorene) interaction: A theoretical study", J. Phys. Chem. B 109, 12868-12873 (2005).

  8. J. Y. Li, C. S. Lee and S. T. Lee, "Efficient UV-sensitive organic photovoltaic devices using a starburst amine as electron donor", J. Mater. Chem. 15, 3268-3271 (2005).

  9. B. Chu, W. L. Li, H. Z. Wei, D. Y. Wang, M. T. Li, Z. Q. Zhang, Z. Z. Hu, C. S. Lee and S.T. Lee, "Photovoltaic effects of diodes containing lanthanide complexes",  J. Alloys & Compounds 389, 252-255 (2005).

  10. S. Garon, E. K. C. Lau, S. L. Chew, S. T. Lee and M. E. Thompson, "Metal (IV) tetras (8-hydroxyquinoline) (M = Zr, Hf) used as electroluminescent material and electron-transport layer in OLEDs",  J. Soc. Inf. Display 13, 405 (2005).

 

Publications in 2004

  1. W. Lu, B. X. Mi, M. C. W. Chan, Z. Hui, C. M. Che, N. Y. Zhu and S. T. Lee, "Light-emitting tridentate cyclometalated platinum(II) complexes containing sigma-alkynyl auxiliaries: Tuning of photo- and electrophosphorescence", J. Am. Chem. Soc. 126,  4958-4971 (2004).

  2. J. Y. Li, D. Liu, C. W. Ma, O. Lengvel. C. S. Lee, C. H. Tung and S. T. Lee, "White-light emission from a single-emitting-component organic electroluminescent device", Adv. Mater. 16, 1538-1541 (2004).

  3. L. L. Zhou, H. Sun, H. P. Li, H. Wang, X. H. Zhang, S. K. Wu, S. T. Lee, "A novel colorimetric and fluorescent anion chemosensor based on the flavone quasi-crown ether-metal complex", Org. Letts. 6, 1071-1074 (2004).

  4. S. W. Tong, C. S. Lee, Y. Lifshitz, D. Q. Gao, and S. T. Lee, "Conducting fluorocarbon coatings for organic light-emitting diodes", Appl. Phys. Letts. 84, 4032-4034 (2004).

  5. F. X. Zang, W. L. Li, Z. R. Hong, H. Z. Wei, M. T. Li, X. Y. Sun, and C. S. Lee, "Observation of 1.5 mm photoluminescence and electroluminescence from a holmium organic complex", Appl. Phys. Letts. 84, 5115-5117 (2004).

  6. J. X. Tang, Y. Q. Li, L. S. Hung and C. S. Lee, "Photoemission study of hole-injection enhancement in organic electroluminescent devices with Au/CFx anode", Appl. Phys. Letts. 84, 73-75 (2004). 

  7. S. D. Wang, X. Dong, C. S. Lee and S.T. Lee, "Orderly growth of copper phthalocyanine on highly oriented pyrolytic graphite (HOPG) at high substrate temperatures", J. Phys. Chem. B 108, 1529-1532 (2004).

  8. D. Q. Gao, M. Y. Chan, S. W. Tong, F. L. Wong, S. L. Lai. C. S. Lee and S. T. Lee, "Application of an evaporable fluoro-molecule as an anode buffer layer in organic electroluminescent devices", Chem. Phys. Letts. 399, 337-341 (2004).

  9. C. W. Ma, O. Lengvel, J. Kovac, I. Bello, C. S. Lee and S. T. Lee, "Time-resolved transient electroluminescence measurements of emission from DCM-doped Alq3 layers", Chem. Phys. Letts. 397, 87-90 (2004).

  10. S. L. Tao, Z. R. Hong, Z. K. Peng, W. G. Ju, X. H. Zhang, P. F. Wang, S. K. Wu and S. T. Lee, "Anthracene derivative for a non-doped blue-emitting organic electroluminscence device with both excellent color purity and high efficiency" Chen. Physs. Letts. 397, 1-4 (2004).

  11. J. X. Tang, C. S. Lee, S. T. Lee and Y. B. Xu, "Electronegativity and charge-injection barrier at organic/metal interfaces", Chem. Phys. Letts. 396, 92-96 (2004).

  12. M. K. Fung, S. L. Lai, S. W. Tong, S. N. Bao, C. S. Lee and S. T. Lee, "Interface gap states of 8-hydroxyquinoline aluminum induced by cesium metal", Chem. Phys. Letts. 392, 40–43 (2004).

  13. M. Y. Chan, S. L. Lai, M. K. Fung, C. S. Lee, and S. T. Lee, "Impact of the metal cathode and CsF buffer layer on the performance of organic light-emitting devices", J. Appl. Phys. 95, 5397-5402 (2004).

  14. F. L. Wong, M. K. Fung, X. Jiang, C. S Lee and S. T. Lee, "Non-reflective black cathode in organic light-emitting diode", Thin Solid Films 446, 143-146 (2004).

  15. J. Y. Li, Z. R. Hong, P. F. Wang, C. S. Lee, N. B. Wong, H. L. Kwong and S. T. Lee, "Enhancement of green electroluminescence from 2,5-di-p-anisyl-isobenzofuran by double-layer doping strategy", Thin Solid Films 446, 111-116 (2004).

  16. F. L. Wong, M. K. Fung, S. W. Tong, C. S. Lee and S. T. Lee, "Flexible organic light-emitting device based on magnetron sputtered indium-tin-oxide on plastic substrate", Thin Solid Films 466, 225-230 (2004).

  17.  J. X. Tang, Y. Q. Li, X. Dong, S. D. Wang, C. S. Lee, L. S. Hung and S. T. Lee, "Photoemission and vibrational studies of metal / organic interfaces modified by plasma-polymerized fluorocarbon films", Appl. Surf. Sci. 239, 117-124 (2004).

 

Publications in 2003

  1. X. Jiang, F. L. Wong, M. K. Fung, and S. T. Lee, "Aluminum-doped zinc oxide films as transparent conductive electrode for organic light-emitting devices", Appl. Phys. Letts. 83, 1875-1877 (2003).

  2. J. Jakabovi, O. Lengyel, J. Ková, T. C. Wong, C. S. Lee, and S. T. Lee, "Properties of 4-dicyanomethylene-2-methyl-6-(p-dimethyl-aminostyryl)-4H-pyran-doped-Alq layers as optically pumped lasers", Appl. Phys. Letts. 83, 1295-1297 (2003).

  3. C. O. Poon, F. L. Wong, S. W. Tong, R. Q. Zhang, C. S. Lee and S. T. Lee, "Improved performance and stability of organic light-emitting devices with silicon oxy-nitride buffer layer", Appl. Phys. Letts. 83, 1038-1040 (2003).

  4. F. Li, M. Zhang, J. Feng, G. Cheng, Z. J. Wu, Y. G. Ma, S. Y. Liu, J. C. Sheng, and S. T. Lee, "Red electrophosphorescence devices based on rhenium complexes", Appl. Phys. Letts. 83, 365-367 (2003).

  5. G. Cheng, F. Li, Y. Duan, J. Feng, S. Y. Liu, S. Qiu, D. Lin, Y. G. Ma, and S. T. Lee, "White organic light-emitting devices using a phosphorescent sensitizer", Appl. Phys. Letts. 82, 4224-4226 (2003).

  6. P. He, S. D. Wang, S. T. Lee and L. S. Hung, "Vibrational study of tris-(8-hydroxyquinoline) aluminum/LiF/Al interfaces", Appl. Phys. Letts. 82, 3218-3220 (2003).

  7. X.Y. Deng, S.W. Tong, and L.S. Hung, Y.Q. Mo and Y. Cao, “Role of ultrathin Alq3 and LiF layers in conjugated polymer light-emitting diodes”, Appl. Phys. Letts. 82, 3104-3106 (2003).

  8. Z. R. Hong, C. S. Lee, S. T. Lee, W. L. Li, and S. Y. Liu, "Efficient red electroluminescence from organic devices using dye-doped rare earth complexes", Appl. Phys. Letts. 82, 2218-2220 (2003).

  9. M. Y. Chan, S. L. Lai, M. K. Fung, S. W. Tong, C. S. Lee, and S. T. Lee, "Efficient CsF/Yb/Ag cathodes for organic light-emitting devices", Appl. Phys. Letts. 82, 1784-1786 (2003).

  10. D. G. Ma, G. A Wang, Y. F. Hu, Y. G. Zhang, L. X. Wang, X. B. Jing, F. S. Wang, C. S. Lee and S. T. Lee, "A dinuclear aluminum 8-hydroxyquinoline complex with high electron mobility for organic light-emitting diodes", Appl. Phys. Letts. 82, 1296-1298 (2003).

  11. P. F. Wang, Z. Y. Xie, S. W. Tong, O. Y. Wong, C. S. Lee, N. B. Wong, L. S. Hung and S. T. Lee, "A novel neutral red derivative for applications in high-performance red-emitting electroluminescent devices", Chem. Mater. 15, 1913-1917 (2003).

  12. J. Y. Li, D. Liu, Z. R. Hong, S. W. Tong, P. F. Wang, C. W. Ma, O. Lengyel, C. S. Lee, H. L. Kwong and S. T. Lee, "A new family of isophorone-based dopants for red organic electroluminescent devices", Chem. Mater. 15, 1486-1490 (2003).

  13. P. F. Wang, Z. Y. Xie, Z. R. Hong, J. X. Tang, O. Y. Wong, C. S. Lee, N. B. Wong, S. T. Lee, "Synthesis, photoluminescence and electroluminescence of new 1H-pyrazolo[3,4-b]quinoxaline derivatives", J. Mater. Chem. 13, 1894–1899 (2003).

  14. P. F. Wang, Z. R. Hong, Z. Y. Xie, S. W. Tong, O. Y. Wong, C. S. Lee, N. B. Wong, L. S. Hung and S. T. Lee, "A bis-salicylaldiminato Schiff base and its zinc complex as new highly fluorescent red dopants for high performance organic electroluminescence devices", Chem. Comm. 14, 1664 – 1665 (2003).

  15. M. K. Fung, S. L. Lai, S. W. Tong, S. N. Bao, C. S. Lee, W. W. Wu, M. Inbasekaran, J. J. O'Brien and S. T. Lee, "Distinct interfaces of poly (9,9-dioctylfluorene-co-benzothiadiazole) with cesium and calcium as observed by photoemission spectroscopy", J. Appl. Phys. 94, 5763-5770 (2003).

  16. S. L. Lai, M. Y. Chan, C. S. Lee and S. T. Lee, "Investigation of calcium as high performance cathode in small-molecule based organic light-emitting devices", J. Appl. Phys. 94, 7297-7299 (2003).

  17. M. K. Fung, S. W. Tong, S. L. Lai, S. N. Bao, C. S. Lee, W. W. Wu, M. Inbasekaran, J. J. O'Brien, S. Y. Liu and S. T. Lee, "Role of ytterbium and ytterbium/cesium fluoride on the chemistry of poly(9,9-dioctylfluorene-co-benzothiadiazole) as investigated by photoemission spectroscopy",  J. Appl. Phys. 94, 2686-2694 (2003).

  18. S. D. Wang, M. K. Fung, S. L. Lai, S. W. Tong, C. S. Lee, S. T. Lee, H. J. Zhang and S. N. Bao, "Experimental study of a chemical reaction between LiF and Al", J. Appl. Phys. 94, 169-173 (2003).

  19. X. H. Zhang, Z. Y. Xie, F. P. Wu, L. L. Zhou, O. Y. Wong, C. S. Lee, H. L. Kwong, S. T. Lee and S. K. Wu, "Red electroluminescence and photoluminescence properties of new porphyrin compounds", Chem. Phys. Letts. 382, 561-566 (2003).

  20. M. Y. Chan, S. L. Lai, C. S. Lee and S. T. Lee, "Efficiency and stability enhancement in organic light-emitting devices with CsF/Mg:Ag cathode", Chem. Phys. Letts. 380, 298-303 (2003).

  21. J. X. Tang, S. W. Tong, C. S. Lee, S. T. Lee and P. M. He, "Photoemission study of interface formation between ytterbium and tris-(8-hydroxyquinoline) aluminum", Chem. Phys. Letts. 380, 63 –69 (2003).

  22. Y. Q. Li, J. X. Tang and L. S. Hung, "Interfacial chemistry of Sm with Alq3 and its implication to organic light-emitting devices", Chem. Phys. Letts. 376, 90-95 (2003).

  23. M. Y. Chan, S. L. Lai, M. K. Fung, C. S. Lee and S. T.Lee, “Highly efficient and substrate independent CsF/Yb/Ag cathodes for organic light-emitting devices", Chem. Phys. Letts. 374, 215 –221 (2003).

  24. H. J. Zhang, S. N. Bao, P. He, S. D. Wang, M. K. Fung, R. Q. Zhang, C. S. Lee and S. T. Lee, "HREELS study on the interaction of MgF2 with tris(8-hydroxy-quinoline)aluminum", Chem. Phys. Letts. 374, 119 –124 (2003).

  25. M. Y. Chan, S. L. Lai, F. L. Wong, O. Lengyel, C. S. Lee and S. T. Lee, "Efficiency enhancement and retarded dark-spots growth of organic light-emitting devices by high-temperature processing", Chem. Phys. Letts. 371, 700-706 (2003).

  26. P. He, S. D. Wang, W. K. Wong, L. F. Cheng, C. S. Lee, S. T. Lee and S. Y. Liu, "Vibrational analysis of oxygen-plasma treated indium tin oxide", Chem. Phys. Letts. 370, 795 –798 (2003).

  27. X. H. Sun, L. F. Cheng, M. W. Liu, L. S. Liao, N. B. Wong, C. S. Lee and S. T. Lee, "Photoelectron spectroscopic study of iodine- and bromine-treated indium tin oxides and their interfaces with organic films", Chem. Phys. Letts. 370, 425 –430 (2003).

  28. X. H. Zhang, M. W. Liu, O. Y. Wong, C. S. Lee, H. L. Kwong, S. T. Lee and S. K. Wu, "Blue and white organic electroluminescent devices based on 9,10-bis(2'-naphthyl)anthracene", Chem. Phys. Letts. 369, 478-482 (2003).

  29. S. L. Lai, M. K. Fung, S. N. Bao, S. W. Tong, M. Y. Chan, C. S. Lee and S. T. Lee, "Interfaces between 8-hydroxyquinoline aluminum and cesium as affected by their deposition sequences", Chem. Phys. Letts. 367, 753-758 (2003).

  30. S. W. Tong, M. K. Fung, C. S. Lee, Y. Lifshitz, S. T. Lee and A. Hoffman, "Argon ion stimulated conversion between CFx (x = 0–3) chemical states and fluorine depletion in fluorocarbon films studied by X-ray photoelectron spectroscopy", Appl. Surf. Sci. 220, 19-25 (2003).

  31. Z. R. Hong, O. Lengyel, C. S. Lee and S. T. Lee, "A mechanistic study of exciplex formation and efficient red light-emitting devices based on rare earth complexes", Org. Electronics 4, 149-154 (2003).

  32. F. Li, J. L. Lin, J. Feng, G. Cheng, H. Y. Liu, S. Y. Liu, L. G. Zhang, X. F. Zhang, S.T. Lee, "Electrical and optical characteristics of red organic light-emitting diodes doped with two guest dyes", Syn. Metals 139, 341-346 (2003).

  33. S. J. Wang, S. C. Tjong, Y. Z. Meng, M. K. Fung, S. T. Lee, A. S. Hay, "Synthesis and photoluminescent properties of poly(arylether)s containing alternate emitting and electron-transporting moieties", J Appl. Polymer Sci. 89, 1645 –1651 (2003).

  34. H. J. Zhang, S. N. Bao, P. M. He, S. D. Wang, M. K. Fung, R. Q. Zhang, C. S. Lee and S. T. Lee, "High-resolution electron-energy-loss spectroscopy study on the reaction of MgF2 with Alq(3) (8-hydroxy-quinoline) aluminum", Acta Physica Sinica 52, 2337-2341 (2003). 

 

Publications in 2002

  1. L. S. Hung and C. H. Chen, "Recent progress of molecular organic electroluminescent materials and devices", Mater. Sci. & Engg. R 39 143–222 (2002).

  2. Y. Q. Li, M. K. Fung, Z. Xie, S. T. Lee, L. S. Hung and J. Shi, "An efficient pure blue organic light-emitting device with low driving voltages", Adv. Mater. 14, 1317-1321(2002).

  3. Z. R. Hong, C. S. Lee, S. T. Lee, W. L. Li, and Y. Shirota, "Bifunctional photovoltaic and electroluminescent devices using a starburst amine as an electron donor and hole-transporting material", Appl. Phys. Letts. 81, 2878 (2002).

  4. M. K. Fung, S. L. Lai, S. W. Tong, M. Y. Chan, C. S. Lee, S. T. Lee, W. W. Wu, M. Inbasekaran and J. J. O'Brien, "Anode modification of polyfluorene-based polymer light-emitting devices", Appl. Phys. Letts. 81, 1497 (2002).

  5. D. G. Ma, C. S. Lee, S. T. Lee and L. S. Hung, "Improved efficiency by a graded emissive region in organic light-emitting diodes", Appl. Phys. Letts. 80, 3641-3643 (2002).

  6. Z. Y. Xie, T. C. Wong, L. S. Hung and S.T. Lee, "Transient electroluminescence of organic quantum-well light emitting diodes", Appl. Phys. Letts.  80, 1477-1479 (2002).

  7. P. F. Wang, Z. Y.  Xie, O. Y. Wong, C. S. Lee, N. B. Wong, L. S.  Hung and S. T. Lee, "New 1H-pyrazolo[3,4-b]quinoxaline derivatives as sharp green-emitting dopants for highly efficient electroluminescent devices", Chem. Comm. 13, 1404-1405 (2002).

  8. W. Lu, B. X. Mi, M. C. W. Chan, Z. Hui, N. Y. Zhu, S. T. Lee and C. M. Che, "[((CNN)-N-boolean AND-N-boolean AND) Pt(C C)(n)R] ((HCNN)-N-boolean AND-N-boolean AND=6-aryl-2,2 '-bipyridine, n=1-4, R = aryl, SiMe3) as a new class of light-emitting materials and their applications in electrophosphorescent devices", Chem. Comm. 3, 206-207 (2002).

  9.  M. K. Fung, S. L. Lai, S. N. Bao, C. S. Lee, S. T. Lee, W.W. Wu, M. Inbasekaran and J. J. O’Brien, "The interface between poly (9,9-dioctylfluorene) and alkali metals: cesium, potassium, sodium and lithium", J. Vacuum Sci. & Tech. 20, 911-918 (2002).

  10. R. Q. Zhang, W. C. Lu, C. S. Lee, L. S. Hung and S. T. Lee, "Metal/Alq3 interactions in organic light emitting devices:  The different roles of Mg, Al and Li atoms", J. Chem. Phys. 116, 8827 (2002).

  11. B. X. Mi, Z. Q. Gao, M. W. Liu, K. Y. Chan, H. L. Kwong, N. B. Wong, C. S. Lee, L. S. Hung and S. T. Lee, "New polycyclic aromatic hydrocarbon dopants for red organic electroluminescent devices",  J. Mater. Chem. 12, 1307-1310 (2002).

  12. S. L. Lai, M. Y. Chan, M. K. Fung, C. S. Lee, L. S. Hung and S. T. Lee, "Applications of Ytterbium in organic light-emitting devices as high performance and transparent electrodes", Chem. Phys. Letts. 366, 128-133 (2002).

  13. D. G. Ma, F. S. Liang, L. X. Wang, S. T. Lee and L. S. Hung, "Erratum to: "Blue organic light-emiting devices with an oxidiazole-containing emitting layer exhibiting excited state intramolecular proton transfer" ", Chem. Phys. Letts. 364, 643-28 (2002).

  14. D. G. Ma, F. S. Liang, L. X. Wang, S. T. Lee and L. S. Hung, "Blue organic light-emitting devices with an oxadiazole-containing emitting layer exhibiting excited state intramolecular proton transfer", Chem. Phys. Letts. 358, 24-28 (2002).

  15. L. S. Liao, L. F. Cheng, X. H. Sun, N. B. Wong, C. S. Lee and S. T. Lee, "Substrate dependence of thermal effect on organic light-emitting", Chem. Phys. Letts. 356, 194-200 (2002).

  16. L. S. Hung and J. Madathil, "Radiation damage and transmission enhancement in surface-emitting organic light-emitting diodes", Thin Solid Films 410, 201-206 (2002).

  17. L. S. Hung, R. Q. Zhang, P. He and G. Mason, "Contact formation of LiF/Al cathodes in Alq-based organic light-emitting diodes", J. Phys. D: Appl. Phys. 35, 103–107 (2002).

  18. M. K. Fung, S. L. Lai, S. N. Bao, C. S. Lee, J. J. O'Briein, M. Inbasekaran, W. W. Wu and S. T. Lee, "Photoelectron spectroscopic studies of poly(9,9-dioctylfluorene)¯potassium interface, and its influence by oxygen", Syn. Metals 128, 97-101 (2002).

  19. I. Bugar, J. Kovac , O. Lengyel and S. T. Lee, "Time-resolved fluorescence study of organics for light emitting and laser devices", Laser Phys. 12, 273-277 (2001). 

  20. T. Feng, X. Wang, F. M. Zhang, S. C. Zou, W. D. Huang, X. H. Wang, L. Luo, L. Q. Xu, F. Stubhan and S. T. Lee, "Silicon Nitride Thin Films Packaging for Flexible Organic Light Emitting Devices", Intl. J. Modern Phys. B 16, 1052-1056 (2002).

 

Publications in 2001

  1. Z. R. Hong, C. J. Liang, R. G. Li, W. L. Li, D. Zhao, D. Fan, D. Y. Wang, B. Chu, F. X. Zang, L. S. Hung and S. T. Lee, "Rare Earth Complex as a High-Efficiency Emitter in an Electroluminescent Device", Adv. Mater. 13, 1241-1245 (2001).

  2. L. S. Hung, J. Madathil, "Reduction of Ambient Light Reflection in Organic Light-Emitting Diodes", Adv. Mater. 13, 1787-1790 (2001).

  3. P. S. Kim, T. K. Sham, P. Zhang, M. K. Fung, S. T. Lee, Y. F. Hu, B. W. Yates, "X-ray excited optical luminescence studies of tris-(2,2 '-bipyridine)ruthenium(II) at the C,N K-edge and Ru L-3,(2)-edge", J. Am. Chem. Soc. 123, 8870-8871 (2001).

  4. S. J. Naftel, P. Zhang, P. S. Kim, T. K. Sham, I. Coulthard, W. J. Antel, Jr., J. W. Freeland, S. P. Frigo, M. K. Fung, S. T. Lee, Y. F. Hu and B. W. Yates, "Soft x-ray-excited luminescence and optical x-ray absorption fine structures of tris (8-hydroxyquinoline) aluminum", Appl. Phys. Letts. 78, 1847-1849 (2001).

  5. Z. Y. Xie, L. S. Hung and S. T. Lee, "High efficient red electroluminescence from a narrow recombination zone confined by an organic double-heterostructure", Appl. Phys. Letts. 79, 1048-1050 (2001).

  6. P. He, W. K. Wong, S. D. Wang, L. F. Cheng, C. S. Lee and S. T. Lee, "Vibrational and photoemission study of the interface between phenyldiamine and indium tin oxide", Appl. Phys. Letts. 79, 1561-1563 (2001).

  7. Z. R. Hong, C. J. Liang, R. G. Li, F. X. Zang, D. Fan, W. L. Li, L. S. Hung and S. T. Lee, "Infrared and visible emission from organic electroluminescent devices based on praseodymium complex", Appl. Phys. Letts. 79, 1942-1944 (2001).

  8. L. S. Hung and M. G. Mason, "Voltage reduction in organic light-emitting diodes", Appl. Phys. Letts. 78, 3732-3734 (2001).

  9. C. M. Che, C. W. Wan, W. Z. Lin, W. Y. Yu, Z. Y. Zhou, W. Y. Lai and S. T. Lee, "Highly luminous substituted bipyrroles", Chem. Comm. 8, 721-722 (2001).

  10. X. Q. Lin, B. J. Chen, X. H. Zhang, C. S. Lee, H. L. Kwong and S. T. Lee, "A Novel Yellow Fluorescent Dopant for High-Performance Organic Electroluminescent Devices", Chem. Mater. 13, 456-458 (2001).

  11. X. H. Zhang, B. J. Chen, X. Q. Lin, O. Y. Wong, C. S. Lee, H. L. Kwong, S. T. Lee and S. K. Wu, "A new family of red dopants based on chromene-containing compounds for organic electroluminescent devices", Chem. Mater. 13, 1565-1569 (2001).

  12. B. X. Mi, Z. Q. Gao, C. S. Lee, H. L. Kwong, N. B. Wang and S. T. Lee, "Efficient green electroluminescence of pure chromaticity from a polycyclic aromatic hydrocarbon", J. Mater. Chem. 11, 2244-2247 (2001).

  13. L. S. Liao, X. H. Sun, L. F. Cheng, N. B. Wong, C. S. Lee and S. T. Lee, "Ambient effect on the electronic structures of tris-(8-hydroxyquinoline) aluminum films investigated by photoelectron spectroscopy", Chem. Phys. Letts. 333, 212-216 (2001).

  14. M. K. Fung, Z. Q. Gao, C. S. Lee and S. T. Lee, "Inhibition of dark spots growth in organicelectroluminescent devices," Chem. Phys. Letts. 333, 432-436 (2001).

  15. T. C. Wong, J. Kovac, C. S. Lee, L. S. Hung and S. T. Lee, "Transient electroluminescence measurements on electron-mobility of N-arylbenzimidazoles", Chem. Phys. Letts. 334, 61-64 (2001).

  16. M. G. Mason, C. W. Tang, L. S. Hung, P. Raychaudhuri, J. Madathil, D. J. Giesen, L. Yan, Q. T. Le, Y. Gao, S. T. Lee, L. S. Liao, L. F. Cheng, W. R. Salaneck, D. A. dos Santos, J. L. Bredas, "Interfacial chemistry of Alq3 and LiF with reactive metals", J. Appl. Phys. 89, 2756-2765 (2001).

  17. B. J. Chen, X. Q. Lin, Y. K. Li, L. F. Cheng, C. S. Lee, W. A. Gambling and S. T. Lee, "Improvement of efficiency and color purity of red-dopant organic light emitting diodes by energy levels matching with host materials", J. Phys. D: Appl. Phys. 34, 30-35 (2001).

  18. C. J. Liang, T. C. Wong, L. S. Hung, S. T. Lee, Z. R. Hong, W. L.  Li, "Self-quenching of excited europium ions in Eu(DBM)(3)bath-based organic electroluminescent devices", J. Phys. D: Appl. Phys. 34, 61-64 (2001).

  19. M. W. Liu, X. H. Zhang, W. Y. Lai, X. Q. Lin, F. L. Wong, Z. Q. Gao, C. S. Lee, L. S. Hung, S. T. Lee and H. L. Kwong, "A new series of blue emitting pyrazine derivatives for organic electroluminescent devices", Phys. Status Sol. (a) 185, 203-211 (2001).

  20. B. J. Chen, X. H. Zhang, X. Q. Lin, H. L. Kwong, N. B. Wong, C. S. Lee, W. A. Gambling and S. T. Lee, "Improved color purity efficiency of blue organic light-emitting diodes via suppression of exciplex formation", Syn. Metals 118, 193-196 (2001).

  21. L. S. Hung, S. T. Lee, "Electrode modification and interface engineering in organic light- emitting diodes", Mater. Sci. & Engg. B 85, 104-108 (2001).

  22. J. Kovac , T. C. Wong, M. K. Fung, M. W. Liu, V. Kremnican, I. Bello and S. T. Lee, "Transient electroluminescence of single and multilayer organic light emitting devices", Mater. Sci. & Engg. B 85, 172-176 (2001).

  23. X. H. Zhang , O. Y. Wong, Z. Q. Gao, C. S. Lee, H. L. Kwong, S. T. Lee and S. K. Wu, "A new blue-emitting benzothiazole derivative for organic electroluminescent devices", Mater. Sci. & Engg. B 85, 182-185 (2001).

 

Publications in 2000

  1. X. Zhou, J. He, L. S. Liao, M. Lu, X. M. Ding, X. Y. Hou and S. T. Lee, "Real time observation of temperature rise and thermal breakdown process in organic light-emitting diodes using infrared imaging and analysis system", Adv, Mater. 12, 265-269 (2000).

  2. L. S. Liao, L. F. Cheng, M. K. Fung, C. S. Lee, and S. T. Lee, M. Inbasekaran, E. P. Woo, and W. W. Wu, "Oxygen effect on the interface formation between calcium and a polyfluorene film", Phys. Rev. B 62, 10004-10007 (2000).

  3. X. M. Ding, L. M. Hung, L. F. Cheng, Z. B. Deng, X. Y. Hou, C. S. Lee and S. T. Lee "Modification of the hole injection barrier in organic light-emitting devices studied by ultraviolet photoelectron spectroscopy", Appl. Phys. Letts. 76, 2704-2706 (2000).

  4. C. J. Liang, D. Zhao, Z. R. Hong, D. X. Zhao, X. Y. Liu, W. L. Li, J. B. Peng, J. Q. Yu, C. S. Lee and S. T. Lee, "Improved performance of electroluminescent devices based on an europium complex", Appl. Phys. Letts. 76, 67-69 (2000).

  5. P. He, F. C. K. Au, Y. M. Wang, L. F. Cheng, C. S. Lee and S. T. Lee "Direct evidence for interaction of magnesium with tris — 8-hydroxy-quinoline – aluminum", Appl. Phys. Letts. 76, 1422-1424 (2000).

  6. L. S. Liao, M. K. Fung, C. S. Lee, S. T. Lee, M. Inbasekaran, E. P. Woo and W. W. Wu, "Electronic Structure and Energy Bandgap of Poly(9, 9-Dioctylfluroene) Investigated by Photoelectron Spectroscopy", Appl. Phys. Letts. 76, 3582-3584 (2000).

  7. Z. Q. Gao, W. Y. Lai, T. C. Wong, C. S. Lee, I. Bello and S. T. Lee, "Response to "Comment on Organic electroluminescent devices by high-temperature processing and crystalline hole transporting layer" ", Appl. Phys. Letts. 77, 3115 (2000).

  8. L. S. Liao, M. K. Fung, L. F. Cheng, C. S. Lee and S. T. Lee, M. Inbasekaran, E. P. Woo and W. W. Wu, "Improvement of interface formation between metal electrode and polymer film by polymer surface modification using ion sputtering", Appl. Phys. Letts.77, 3191-3193 (2000). 

  9. L. F. Cheng, L. S. Liao, W. Y. Lai, X. H. Sun, N. B. Wong, C. S. Lee and S. T. Lee, "Effect of deposition rate on the morphology, chemistry and electroluminescence of tris-(8-hydroxyqiunoline) aluminum films", Chem. Phys. Letts. 319, 418-422 (2000).

  10. X. H. Zhang, W. Y. Lai , Z. Q. Gao, T. C. Wong, C. S. Lee, H. L. Kwong, S. T. Lee and S. K. Wu, "Photoluminescence and electroluminescence of pyrazoline monomers and dimmers" Chem. Phys. Letts. 320, 77–80 (2000).

  11. L. S. Liao, L. F. Cheng, M. K. Fung, C. S. Lee, S. T. Lee, M. Inbasekaran, E. P. Woo and W.W. Wu, "Interface formation between poly(9,9-dioctylfluorene) and Ca electrode investigated using photoelectron spectroscopy", Chem. Phys. Letts. 325, 405-410 (2000).

  12. R. Q. Zhang, C. S. Lee and S.T. Lee, "Effect of charging on electronic structure of the Alq3 molecule: the identification of carrier transport properties", Chem. Phys. Letts. 326, 413-420 (2000).

  13. L. S. Liao, J. He, X. Zhou, M. Lu, Z. H. Xiong, Z. B. Deng, X. Y. Hou and S. T. Lee, "Bubble formation in organic light -emitting diodes", J. Appl. Phys. 88, 2386-2390 (2000).

  14. B. J. Chen, C. S. Lee, S. T. Lee, Patrick Webb, Y. C. Chan , W. A. Gambling, H. Tian and W. H. Zhu,  "Improved Time-of-Flight Technique for Measuring Carrier Mobility in Thin Films of Organic Electroluminescent Materials", Jpn. J. Appl. Phys. 39, 1190-1192 (2000).

  15. Z. Q. Gao, C. S. Lee, I. Bello and S. T. Lee, "White light electroluminescence from a hole-transporting layer of mixed organic materials", Syn. Metal  111-112, 39-42 (2000).

  16. W. L. Li, Z. Q. Gao, Z. Y. Hong, C. S. Lee and S. T. Lee, "Blue electroluminescent devices made from a naphthyl-substituted benzidine derivative and rare earth metal chelates", Syn. Metal  111-112, 53-56 (2000).

  17. X. H. Zhang, W. Y. Lai, T. C. Wong, Z. Q. Gao, Y. C. Jiang, S. K. Wu, H. L. Kwong, C. S. Lee and S. T. Lee, "The effect of functional group substitution on the photoluminescence and electroluminescence of pyrazoline derivatives", Syn. Metal  114, 115-117 (2000).

  18. C. J. Liang, Z. R. Hong, X. Y. Liu, D. X. Zhao, D. Zhao, W. L. Li, J. B. Peng, J. Q. Yu, C. S. Lee and S. T. Lee, "Organic electroluminescent devices using europium complex as an electron-transport emitting layer", Thin Solid Films 359, 14-16 (2000).

  19. B. J. Chen, Y. Q. Liu, C. S. Lee, G. Yu, S. T. Lee, H. Y. Li, W. A. Gambling, D. B. Zhu, H. Tian, W.H. Zhu, "Carrier transport and high-efficiency electroluminescence properties of copolymer thin films", Thin Solid Films 363, 173-177 (2000).

  20. K. L. Wang, B. Lai, M. Lu, X. Zhou, L. S. Liao, X. M. Ding, X. Y. Hou and S. T. Lee, "Electronic structure and energy level alignment of Alq3/Al2O3/Al and Alq3/Al interfaces studied by ultraviolet photoemission spectroscopy", Thin Solid Films 363, 178-181 (2000).

  21. S. M. Wang, X. Y. Liu, L. J. Wang, W. L. Li and S. T. Lee, "Temporal behaviors of the amplified spontaneous emission and the lasing from a copolymer", Thin Solid Films 363, 182-184 (2000).

  22. S. M. Wang, X. Y. Liu, W. L. Li, L. J. Wang and S. T. Lee, "Spectral broadening properties of amplified spontaneous emission from a copolymer", Thin Solid Films 363, 185-187 (2000).

  23. X. Y. Liu, L. X. Wang, Y. Liu, S. L. E, J. M. Zhao, D. J. Wu, Y. Q. Ning, S. L. Wu, L. J. Wang, C. J. Liang, D. X. Zhao, Z. R. Hong, D. Zhao, C. Q. Jin, X. B. Jing, F. S. Wang, W. L. Li and S. T. Lee "Spontaneous emission properties of organic film in plane optical microcavity", Thin Solid Films 363, 204-207 (2000).

  24. D. X. Zhao, Z. Hong, C. J. Liang, D. Zhao, X. Y. Liu, W. L. Li, C. S. Lee and S. T. Lee, "Enhanced electroluminescence of europium(III) complex by terbium(III) substitution in organic light emitting diodes", Thin Solid Films 363, 208-210 (2000).

  25. J. He, M. Lu, X. Zhou, J. R. Cao, K. L. Wang, L. S. Liao, Z. B. Deng, X. M. Ding, X. Y. Hou and S. T. Lee, "Damage study of ITO under high electric field", Thin Solid Films 363, 240-243 (2000).

  26. X. H. Zhang, S. K. Wu, Z. Q. Gao, C. S. Lee, S. T. Lee and H. L. Kwong, "Pyrazoline derivatives for blue color emitter in organic electroluminescent devices", Thin Solid Films 371, 40-46 (2000).

  27. R. Q. Zhang, C. S. Lee, and S. T. Lee, "The electronic structures and properties of Alq3 and NPB molecules in organic light emitting devices: Decompositions of density of states"," J. Chem. Phys 112, 8614-8620 (2000).

  28. L. F. Cheng, L. M. Hung, X. M. Ding, Z. Q. Gao, C. S. Lee and S. T. Lee, "Photoemission study of a new electroluminescent material: trimer of N-arylbenzimidazoles (TPBI)", Displays 21, 51-54 (2000).

  29. Z. B. Deng, X. M. Ding, L. S. Liao, X. Y. Hou and S. T. Lee, "The interface analyses of inorganic layer for organic electroluminescent devices", Displays 21, 79-82 (2000).

  30. H. Tian, J. H. Su, K. C. Chen, T. C. Wong, Z. Q. Gao, C. S. Lee and S. T. Lee, "Electroluminescent property and charge separation state of bis-naphthalimides", Optical Mater. 14, 91-94 (2000).

  31. Z. K. Chen, W. Huang, L. H. Wang, E. T. Kang, B. J. Chen, C. S. Lee and S. T. Lee, "A family of electroluminescent silyl-substituted poly(p-phenylenevinylene)s: Synthesis, characterization and structure-properties relationships", Macromolecules 33, 9015-9025 (2000).

 

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