Showing 31 to 40 of 313 results
16 Jan 2025
Researchers from the City University of Hong Kong (CityUHK) have achieved a significant breakthrough in electronic packaging technology by developing an innovative nanocrystalline (NC) copper material that enables direct copper-to-copper bonding at lower temperatures. This advancement opens new possibilities for advanced chip design, which is crucial for many next-generation technologies.
10 Oct 2024
Researchers at City University of Hong Kong (CityUHK) have made a groundbreaking discovery, significantly reducing energy loss in metal nanostructures. By altering the geometrical dimensions of these structures, researchers have unlocked their full potential, paving the way for the development of more powerful and efficient nanoscale optical devices.
26 Sep 2024
In most inorganic semiconductors, electrons serve as the primary charge carriers, which limits the development of complementary devices and circuits. A recent study by City University of Hong Kong (CityUHK) researchers has made significant strides in enhancing the mobility of positively charged carriers, known as "holes", in inorganic semiconductors. The research team achieved this breakthrough by employing an innovative inorganic blending strategy, combining various intrinsic p-type inorganic materials into a single compound, called tellurium-selenium-oxygen (TeSeO).
15 Aug 2024
Nucleic acid (NA)-based medicine has been a focal point of research over the past two decades and has shown immense promise for both therapeutics and vaccines. The rapid development and deployment of NA-based vaccines during the COVID-19 pandemic underscored their potential. However, the efficient in vivo delivery of these nucleic acids, particularly when cytosolic delivery is required without leaving residual materials in the body, has remained unsolved.
18 Jul 2024
City University of Hong Kong (CityUHK) researchers have uncovered a unique mechanism for producing the brilliant blue skin of ribbontail stingrays. This discovery sheds light on how nature can create vibrant colors through the particular arrangements of nanostructures, a process known as structural coloration. This research delves into the fascinating world of natural optics, revealing a novel approach to color production that could inspire new technologies for creating robust, chemistry-free colors on a variety of materials.
04 Jul 2024
Solar steam generation (SSG) is recognized as a sustainable technology for seawater desalination, but its practical applications have been hampered by salt fouling, which compromises the evaporation performance and lifespan of evaporators. Addressing this issue, a research team from City University of Hong Kong (CityUHK) has developed a groundbreaking solution - a hierarchical salt-rejection (HSR) strategy that prevents salt precipitation during long-term evaporation, even in high-salinity brine. This innovative research is a significant step forward in advancing various applications such as resource recovery and offshore farming, thereby paving the way for a more sustainable future.
27 Jun 2024
Modern technology typically uses high temperatures to manage the hydration of ceramics, but even the latest methods can only control overall hydration. In contrast, nature can create bioceramics with customizable hydration profiles and crystallization traits under mild conditions.
18 Jun 2024
City University of Hong Kong (CityUHK) has recently developed a new multi-principal element metallic glass that shatters previous limitations of tensile ductility. This novel glass is twice as ductile as traditional metallic glasses, and its strength nearly doubles when stretched. The key to this extraordinary property lies in the unique structural evolution of the glass during deformation, which causes it to harden rather than soften, making it significantly more resistant to sudden breakage under tension. The findings surpass limitations of tensile ductility in metallic glasses and provide a promising pathway to create strong and ductile glasses.
06 Jun 2024
Van der Waals (vdW) dielectrics are widely used in nanoelectronics to preserve the intrinsic properties of two-dimensional (2D) semiconductors. However, achieving aligned growth of 2D semiconductors and their direct utilization on original vdWs epitaxial dielectrics to avoid disorders poses significant challenges. To overcome these challenges, researchers from the City University of Hong Kong (CityUHK) developed a hydromechanical strategy for aligned 2D material synthesis, pushing forward high-performance devices with as-grown 2D materials/vdWs dielectrics.
16 May 2024
The synthesis of metallic inorganic compound thin films typically requires high-temperature processes, which hampers their applications on flexible substrates. Recently, a research team at City University of Hong Kong (CityUHK) developed a pulse irradiation technique that synthesizes a variety of thin films in an extremely short time under ultra-low temperature. The strategy effectively addresses the compatibility and cost issues of traditional high-temperature synthesis, and the prepared thermoelectric films exhibit excellent optoelectronic performance in the visible and near-infrared spectrum range, which is promising for wearable electronics and integrated optoelectronic circuits.