British scientists have developed the world's leading compound semiconductor (CS) technology that can drive future high-speed data communications. A team from the Institute of Compound Semiconductors (ICS) at Cardiff University, in collaboration with collaborators, innovated an ultra-fast, high-sensitivity "Avalanche Photodiode" (APD), which generates electronic "noise" Smaller than its silicon competitors. APD is a highly sensitive semiconductor device that uses the "photoelectric effect" (when light is irradiated on the material) to convert light into electricity.
All parts of the world need faster and ultra-sensitive "Avalanche Photodiodes" (APD), Light detection and ranging (LIDAR) system for high-speed data communication and autonomous vehicles. The research results were published in "Nature Photonics" on July 8, 2019.
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Outlined the production of ultra-low excess noise and High Sensitivity "Avalanche Photodiode"(APD) breakthrough. Cardiff University researchers under the leadership of Sir Samru Professor, Director of Integrated Circuit Science, and Sir Samru’s Senior Engineering and Materials Department Director Diana Hutchback.
Cooperated with the University of Sheffield and the California Nanosystems Institute of UCLA to develop this Technology. Its research is to develop ultra-low extra noise andHigh-sensitivity avalanche photodiodes, which may produce a new type of high-performance receiver for networking and sensing. The innovation of this technology lies in the development of advanced materials that use molecular beam epitaxy (MBE) to "grow" compound semiconductor crystals between atoms. This particular material is quite complex and challenging to synthesize because it combines four different atoms and requires a new MBE method.
Ser Cymru MBE equipment is specifically designed for the realization of future sensing solutions, the entire series of challenging materials. Cymru mutual fund researcher Dr. Xie Shiyu said: The results are very important because they work in a very low signal environment, at room temperature, and, very importantly, are compatible with the InP optoelectronic platform currently used by most commercial communication providers. These "Avalanche Photodiodes" (APD) have a wide range of applications. They are used to make high-resolution maps in lidar or three-dimensional laser mapping, which are used in geomorphology, seismology, and the control and navigation of some autonomous vehicles.
Its research findings can change the global research field of APD, and the materials developed can directly replace the existing AOD. Produces higher data transmission rates, or achieves longer transmission distances. Professor Colin Riordan, Vice President of Cardiff University, said: Professor Huffington’s Ser Cymru group research will support the continued success of CS Connected for a wider composite semiconductor cluster. Plays a vital role. CS Connected brings together 10 industry and academic partners in South Wales to develop 21st century technologies and create economic prosperity. ResearchIt brings direct benefits to industry and can also be applied to future free-space optical communication systems.