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	Direct growth of graphene nanowalls on silica for high-performance photo-electrochemical anode
	Nong, Jinpeng1,2; Wei, Wei1,2; Song, Xuefen1,2; Tang, Linlong2; Yang, Jun2; Sun, Tai2; Yu, Leyong2; Luo, Wei1,2; Li, Chun3; Wei, Dapeng2
	2017-06-25
摘要	Recently, graphene-like nanofilm materials have attracted extensive attention as the fundamental building blocks for potential applications in optoelectronic devices. Here, we developed a simple and versatile technique to directly produce high-quality graphene nanowalls on silica substrate without any catalyst and post-transfer. It shows that the entire surface of silica substrate is fully covered with continuous graphene nanowalls with well-connected network. Moreover, the prepared optical films exhibit excellent optical absorption with a high absorbance of 95% at a wide range of waveband from visible to near infrared. Such a three dimensional film material with super-large surfaces and outstanding optical properties is further decorated with CdTe nanofilm and used as a photo-electrochemical working electrode. The prepared electrode exhibits a fast photo-responsive behavior with high photo-current density up to 3 mA/cm(2). Our study identifies that graphene nanowalls served as an excellent transfer black body can enhance the photo-electrochemical performance of electrode when it is sensitized with semiconductor nanofilms. (C) 2016 Elsevier B.V. All rights reserved.
关键词	Photo-electrochemical Graphene nanowalls Coating CdTe
DOI	10.1016/j.surfcoat.2016.10.092
发表期刊	SURFACE & COATINGS TECHNOLOGY
ISSN	0257-8972
卷号	320页码:579-583
通讯作者	Wei, W (reprint author), Chongqing Univ, Coll Optoelect Engn, Minist Educ China, Key Lab Optoelect Technol & Syst, Chongqing 400044, Peoples R China. ; Wei, DP (reprint author), Chinese Acad Sci, Chongqing Inst Green & Intelligent Technol, Chongqing Key Lab Multiscale Mfg Technol, Chongqing 400714, Peoples R China.
收录类别	SCI
WOS记录号	WOS:000402215000096
语种	英语