Graphene as transparent electrode for direct observation of hole   photoemission from silicon to oxide

doi:10.1063/1.4796169

CORC > 北京大学 > 信息科学技术学院

	Graphene as transparent electrode for direct observation of hole photoemission from silicon to oxide
	Yan, Rusen ; Zhang, Qin ; Kirillov, Oleg A. ; Li, Wei ; Basham, James ; Boosalis, Alex ; Liang, Xuelei ; Jena, Debdeep ; Richter, Curt A. ; Seabaugh, Alan C. ; Gundlach, David J. ; Xing, Huili G. ; Nguyen, N. V.
刊名	应用物理学快报
	2013
关键词	SPECTROSCOPIC ELLIPSOMETRY INTERNAL PHOTOEMISSION THIN-FILMS
DOI	10.1063/1.4796169
英文摘要	We demonstrate the application of graphene as collector material in internal photoemission (IPE) spectroscopy, which enables direct observation of both electron and hole injections at a Si/Al2O3 interface and overcomes the long-standing difficulty of detecting holes in IPE measurements. The observed electron and hole barrier heights are 3.5 +/- 0.1 eV and 4.1 +/- 0.1 eV, respectively. Thus, the bandgap of Al2O3 can be deduced to be 6.5 +/- 0.2 eV, in good agreement with the value obtained by ellipsometry analysis. Our modeling effort reveals that, by using graphene, the carrier injection from the emitter is significantly enhanced and the contribution from the collector electrode is minimal. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4796169]; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000316967100069&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Physics, Applied; SCI(E); EI; 6; ARTICLE; 12; 102
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/225082]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Yan, Rusen,Zhang, Qin,Kirillov, Oleg A.,et al. Graphene as transparent electrode for direct observation of hole photoemission from silicon to oxide[J]. 应用物理学快报,2013.
APA	Yan, Rusen.,Zhang, Qin.,Kirillov, Oleg A..,Li, Wei.,Basham, James.,...&Nguyen, N. V..(2013).Graphene as transparent electrode for direct observation of hole photoemission from silicon to oxide.应用物理学快报.
MLA	Yan, Rusen,et al."Graphene as transparent electrode for direct observation of hole photoemission from silicon to oxide".应用物理学快报 (2013).