Noncatalytic chemical vapor deposition of graphene on high-temperature substrates for transparent electrodes
Jie Sun (孙捷), Matthew T. Cole, Niclas Lindvall, Kenneth B. K. Teo (张谋瑾), and August Yurgens
Appl. Phys. Lett. 100, 022102 (2012); http://dx.doi.org/10.1063/1.3675632
Online Publication Date: 9 January 2012
 

Abstract:

A noncatalytic chemical vapor deposition mechanism is proposed, where high precursor concentration, long deposition time, high temperature, and flat substrate are needed to grow large-area nanocrystalline graphene using hydrocarbon pyrolysis. The graphene is scalable, uniform, and with controlled thickness. It can be deposited on virtually any nonmetallic substrate that withstands ∼1000 °C. For typical examples, graphene grown directly on quartz and sapphire shows transmittance and conductivity similar to exfoliated or metal-catalyzed graphene, as evidenced by transmission spectroscopy and transport measurements. Raman spectroscopy confirms the sp2-C structure. The model and results demonstrate a promising transfer-free technique for transparent electrode production.

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