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	Manipulating the interfacial energetics of n-type silicon photoanode for efficient water oxidation
	Yao, Tingting1,2; Chen, Ruotian1,2,4; Li, Junjie5; Han, Jingfeng1,2,3; Qin, Wei1,2; Wang, Hong1,2,4; Shi, Jingying1,2; Fan, Fengtao1,2,3; Li, Can1,2,3
刊名	Journal of the american chemical society
	2016-10-19
卷号	138期号:41页码:13664-13672
ISSN号	0002-7863
DOI	10.1021/jacs.6b07188
通讯作者	Li, can(canli@dicp.ac.cn)
英文摘要	The photoanodes with heterojunetion behavior could enable the development of solar energy conversion, but their performance largely suffers from the poor charge separation and transport process through the multiple interfacial energy levels involved. the question is how to efficiently manipulate these energy levels. taking the n-si schottky photoanode as a prototype, the undesired donor-like interfacial defects and its adverse effects on charge transfer in n-si/ito photoanode are well recognized and diminished through the treatment on electronic energy level. the obtained n-si/tiox/ito schottky junction exhibits a highly efficient charge transport and a barrier height of 0:95 ev, which is close to the theoretical optimum for n-si/ito schottky contact. then, the holes extraction can be further facilitated through the variation of surface energy level, with the niooh coated ito layer. this is confirmed by a 115% increase in surface photovoltage of the photoanodes. eventually, an unprecedentedly low onset potential of 0.9 v (vs rhe) is realized for water oxidation among n si photoanodes. for the water oxidation reaction, the n-si/tiox/ito/niooh photoanode presents a charge separation efficiency up to 100% and an injection efficiency greater than 90% at a wide voltage range. this work identifies the important role of interfacial energetics played in photoelectrochemical conversion.
WOS关键词	LAYERED DOUBLE HYDROXIDES ; SCHOTTKY BARRIERS ; OXIDE-FILMS ; EVOLUTION ; OXYGEN ; TIO2 ; SPECTROSCOPY ; CAPACITANCE ; JUNCTION ; ELECTROCATALYST
WOS研究方向	Chemistry
WOS类目	Chemistry, Multidisciplinary
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000385992100036
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2375001
专题	中国科学院大学
通讯作者	Li, Can
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Zhongshan Rd 457, Dalian 116023, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Zhongshan Rd 457, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Dalian Inst Chem Phys, Collaborat Innovat Ctr Chem Energy Mat iChEM, Zhongshan Rd 457, Dalian 116023, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Int Iberian Nanotechnol Lab INL, Ave Mestre Jose Veiga, P-4715330 Braga, Portugal
推荐引用方式 GB/T 7714	Yao, Tingting,Chen, Ruotian,Li, Junjie,et al. Manipulating the interfacial energetics of n-type silicon photoanode for efficient water oxidation[J]. Journal of the american chemical society,2016,138(41):13664-13672.
APA	Yao, Tingting.,Chen, Ruotian.,Li, Junjie.,Han, Jingfeng.,Qin, Wei.,...&Li, Can.(2016).Manipulating the interfacial energetics of n-type silicon photoanode for efficient water oxidation.Journal of the american chemical society,138(41),13664-13672.
MLA	Yao, Tingting,et al."Manipulating the interfacial energetics of n-type silicon photoanode for efficient water oxidation".Journal of the american chemical society 138.41(2016):13664-13672.

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