Carrier-selective p- and n-contacts for efficient and stable photocatalytic water reduction.pdfVIP

下载本文档

11
0
约3.45万字
约 6页
2017-03-16 发布于天津
举报
版权申诉

Carrier-selective p- and n-contacts for efficient and stable photocatalytic water reduction.pdf

1、有哪些信誉好的足球投注网站（book118）网站文档一经付费（服务费），不意味着购买了该文档的版权，仅供个人/单位学习、研究之用，不得用于商业用途，未经授权，严禁复制、发行、汇编、翻译或者网络传播等，侵权必究。。
2、本站所有内容均由合作方或网友上传，本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺！文档内容仅供研究参考，付费前请自行鉴别。如您付费，意味着您自己接受本站规则且自行承担风险，本站不退款、不进行额外附加服务；查看《如何避免下载的几个坑》。如果您已付费下载过本站文档，您可以点击这里二次下载。
3、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等，请点击“版权申诉”（推荐），也可以打举报电话：400-050-0827(电话支持时间：9:00-18:30)。
4、该文档为VIP文档，如果想要下载，成为VIP会员后，下载免费。
5、成为VIP后，下载本文档将扣除1次下载权益。下载后，不支持退款、换文档。如有疑问请联系我们。
6、成为VIP后，您将拥有八大权益，权益包括：VIP文档下载权益、阅读免打扰、文档格式转换、高级专利检索、专属身份标志、高级客服、多端互通、版权登记。
7、VIP文档为合作方或网友上传，每下载1次，网站将根据用户上传文档的质量评分、类型等，对文档贡献者给予高额补贴、流量扶持。如果你也想贡献VIP文档。上传文档

Carrier-selective p- and n-contacts for efficient and stable photocatalytic water reduction.pdf

G Model CATTOD-10463; No. of Pages 6 ARTICLE IN PRESS Catalysis Today xxx (2016) xxx–xxx Contents lists available at ScienceDirect Catalysis Today journal homepage: /locate/cattod Carrier-selective p- and n-contacts for ef?cient and stable photocatalytic water reduction Dowon Bae a, Thomas Pedersen b, Brian Seger a, Beniamino Iandolo c, Ole Hansen a,b, Peter C.K. Vesborg a, Ib Chorkendorff a,? a Department of Physics, Technical University of Denmark, Building 311, Fysikvej, DK-2800 Kgs. Lyngby, Denmark b Department of Micro- and Nanotechnology, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark c Center for Electron Nanoscopy, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark article info Article history: Received 31 July 2016 Received in revised form 6 November 2016 Accepted 7 November 2016 Available online xxx Keywords: Photocatalysis Carrier-selective contact Hydrogen evolution Metal-oxide-semiconductor abstract The successful realization of carrier-selective contacts for crystalline silicon (c-Si) based device for photocatalytic hydrogen production has been demonstrated. The proposed TiO2 protected carrier-selective contacts resemble a metal-oxide-semiconductor con?guration, including a highly-doped nanocrystalline silicon (nc-Si) and a tunnel oxide, thereby form a heterostructure with the c-Si substrate. By substituting conventional pn+-junction Si by c-Si/SiOX/nc-Si structure for both front and back contacts we demonstrate a 16% increase in photovoltage (an open circuit voltage of 584 mV under AM 1.5G conditions). TiO2 protected carrier-selective photoelectrodes showed excellent long-term durability in acidic aqueous solution having stable photocurrent output for more than 40 days, implying that the proposed carrierselective contact is a promising con?guration to substitute for the conventional pn-junction based c-Si photocathodes. ? 2016 Elsevier B.V. All rights reserved. 1. Introduction Photoelectrochemical splitting of water into H2 (