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Yu C.,CAS Chongqing Institute of Green and Intelligent Technology | Yu C.,Chongqing Graphene Technology Company Ltd | Wei D.,CAS Chongqing Institute of Green and Intelligent Technology | Wei D.,Chongqing Graphene Technology Company Ltd
Gongneng Cailiao/Journal of Functional Materials | Year: 2015

Graphene has been considered as promising material for next generation transparent electrodes due to its excellent optical, electrical, and mechanical properties, but unfortunately the practical use of graphene in end-product devices has not been demonstrated since the yield, size and uniformity problems are yet to be solved to satisfy industrial standards. Here we show large-area monolayer graphene films by precursor-gas preheating thermal chemical vapor deposition (PT-CVD), which enabled mass-produced and larger production of graphene film over 300 mm×300 mm PET substrate area with an optical transmittance of over 95% and a sheet resistance of (146±15) Ω/sq. The uniformity, transmittance and sheet resistance properties of graphene had been characterized by using scanning electron microscope (SEM), Raman spectroscopy, UV-Vis spectrophotometer and four point probe resistivity tester. Finally, we successfully patterned graphene micro/nano-structure and solved vacuum lamination problems for graphene-based truly multi-touch capacitive touch panels in mobile phones. ©, 2015, Journal of Functional Materials. All right reserved.


Shao L.,CAS Chongqing Institute of Green and Intelligent Technology | Shao L.,Chongqing Graphene Technology Company Ltd | Wei D.,CAS Chongqing Institute of Green and Intelligent Technology | Wei D.,Chongqing Graphene Technology Company Ltd | And 2 more authors.
Gongneng Cailiao/Journal of Functional Materials | Year: 2015

Graphene is a new two-dimensional material, with excellent electrical conductivity, thermal conductivity, light transmittance and mechanical strength. It is known as the 21st century strategic new material for its wide applications, such as electronics, aerospace, optoelectronics, green energy and biological medicine. At present, the large areahigh quality preparation and application of graphene is still in early stage. For this reason, this paper reviewed the research progress of mass production technology of graphene film in China and abroad, as well as, its application situation in the field of intelligent terminal, energy, etc. At last, research focus on graphene industry in the future was put forward. ©, 2015, Journal of Functional Materials. All right reserved.

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