InN/InGaN quantum dot photoelectrode: Efficient hydrogen generation by water splitting at zero voltage

被引：64

作者：

ul Hassan Alvi, Naveed ^{[1
]}

Soto Rodriguez, Paul Eduardo David ^{[1
]}

Aseev, Pavel ^{[1
]}

Jesus Gomez, Victor ^{[1
]}

Alvi, Ameed ul Hassan ^{[2
]}

ul Hassan, Waheed ^{[3
]}

Willander, Magnus ^{[4
]}

Noetzel, Richard ^{[5
,6
]}

机构：

[1] Univ Politecn Madrid, ETSI Telecomunicac, ISOM Inst Syst Based Optoelect & Microtechnol, E-28040 Madrid, Spain

[2] Univ Agr Faisalabad, Dept Phys, Faisalabad 38000, Pakistan

[3] Bahauddin Zakariya Univ, Dept Chem, Multan 60000, Pakistan

[4] Linkoping Univ, Dept Sci & Technol ITN, S-60174 Norrkoping, Sweden

[5] Univ Milano Bicocca, L NESS, I-20125 Milan, Italy

[6] Univ Milano Bicocca, Dipartimento Sci Mat, I-20125 Milan, Italy

来源：

NANO ENERGY | 2015年 / 13卷

关键词：

InGaN; InN; Quantum dots; Photoelect rode; Water splitting; Hydrogen generation; MOLECULAR-BEAM EPITAXY; GRAPHENE OXIDE; NANOWIRE ARRAYS; ACCUMULATION; ALPHA-FE2O3; INGAN; LEVEL; CELLS; INN;

D O I：

10.1016/j.nanoen.2015.02.017

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Light to hydrogen conversion via water splitting is of immense interest as a clean, storable, and InN; renewable energy source (Tachibana et al., 2012 [1]; Maeda and Domen, 2010 [2]; van de Krol et al., Quantum dots; 2008 [3]; van Dorp et al., 2009 [4]; Kudo and Miseki, 2009 [5]) but efficient materials need to be found. Photoelect rode; To solve, InGaN has properties ideally suited and we demonstrate here that epitaxial InN quantum dots Water splitting; Hydrogen generation (QDs) more than double the photoelectrochemical (PEC) water splitting efficiency of an In0.54Ga046N photoelectrode. The InN/In0.54Ga0.46N-QDs-photoelectrode reveals a maximum incident-photon-tocurrent-conversion efficiency (IPCE) of up to 56% at a wavelength of 600 nm with hydrogen generation rate of 133 mot h(-1) cm(-2) at zero voltage under illumination of a 1000W Xenon arc lamp. The bare In0.51Ga0.16N-layer-photoelectrode reveals a much lower IPCE of 24% with hydrogen generation rate of 59 pmol h(-1) cm(-2). (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：291 / 297

页数：7

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