Field of semiconductor materials. Graphene is considered to be an ideal material for replacing silicon. A large number of powerful enterprises have developed graphene semiconductor devices. The Han Guocheng Institute has developed a highly stable n type graphene semiconductor that can be exposed to air for a long time. Graphene silicon optoelectronic hybrid chip developed by Columbia University has broad application prospects in optical interconnection and low power photonic integrated circuit. IBM researchers have developed graphene field effect transistors with cutoff frequencies of up to 100GHz, with frequency performance far superior to the cut-off frequency of the most advanced silicon transistors of the same gate length.
Energy storage and new display areas. Graphene has excellent conductivity and transparency. As a transparent conductive electrode material, graphene has a good application in touch screen, liquid crystal display, energy storage batteries and so on. Graphene is considered to be the most potential alternative to indium tin oxide manufacturing in touch screen manufacturing, and Samsung, SONY, Hui Rui, 3M, Dongli, Toshiba and other leading enterprises have made key research and development layout in this field. Researchers at the University of Dezhou, Austen, used KOH to chemically modify graphene to form a porous structure, resulting in a storage density of ultracapacitor near the lead acid battery. Michigan Technological University scientists have developed a unique honeycomb structure of three-dimensional graphene electrode, photoelectric conversion efficiency of 7.8%, and low price, is expected to replace platinum in solar cells applications. Toshiba Co developed graphene and silver nanowires composite transparent electrode, and achieved a large area.
Sensor domain. Graphene due to its unique two-dimensional structure is widely used in sensor, has the advantages of small size, large surface area, high sensitivity, fast response time, fast and easy electron transfer protein immobilization and maintained its activity and other characteristics, can improve the performance of sensor. Mainly used in the production of gas, biological molecules, enzymes and DNA electrochemical sensors. Singapore Nanyang Technology University developed a graphene light sensor sensitivity is 1000 times the ordinary sensor; the Rensselaer Polytechnic Institute developed performance than the existing commercial gas sensor cheap graphene sponge sensor.
A report released recently pointed out that the Chinese Academy of Sciences, graphene research and industrialization continues to heat up, from the distribution of graphene patents in the field, including the application of technology research hot spots: layout of graphene as a electrode material of lithium ion batteries, solar battery electrode materials, thin film transistor preparation, sensor, semiconductor device, composite material preparation of transparent, touch screen display, transparent electrode
