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Stoichiometry Controlled Bipolar Conductivity in Nanocrystalline NixCd1−xO1+δ Thin Films

20190531_KM1
Physical Review Applied

The availability of wide gap oxides with bipolar conductivity is critical to the development of emerging transparent optoelectronic technologies. However, most metal oxides show a strong propensity for n-type conductivity while p-type doping is extremely challenging due to their unique band structures. In this work, we demonstrated that bipolar conductivity can be achieved by alloying two transition metal oxides with type III band offset, CdO and NiO and manipulating the alloy stoichiometry through the growth parameters.  The results strongly suggest that these alloys have great technological potentials for transparent optoelectronic applications.

Read more at Physical Review Applied:
https://doi.org/10.1103/PhysRevApplied.11.014019


10 Jan 2019

Applied Physics