Switched Photocurrent on Tin Sulfide-Based Nanoplate Photoelectrodes

被引：19

作者：

Chen, Hongjun ^{[1
,2
]}

Lyu, Miaoqiang ^{[1
,2
]}

Zhang, Meng ^{[1
,2
]}

Feron, Krishna ^{[3
,4
]}

Searles, Debra J. ^{[2
,5
]}

Dargusch, Matthew ^{[6
]}

Yao, Xiangdong ^{[7
,8
]}

Wang, Lianzhou ^{[1
,2
]}

机构：

[1] Univ Queensland, Nanomat Ctr, Sch Chem Engn, Brisbane, Qld 4072, Australia

[2] Univ Queensland, Australian Inst Bioengn & Nanotechnol, Brisbane, Qld 4072, Australia

[3] CSIRO Energy, Newcastle, NSW 2300, Australia

[4] Univ Newcastle, Ctr Organ Elect, Callaghan, NSW 2308, Australia

[5] Univ Queensland, Ctr Theoret & Computat Mol Sci, Sch Chem & Mol Biosci, Brisbane, Qld 4072, Australia

[6] Univ Queensland, Ctr Adv Mat Proc & Mfg, Sch Mech & Min Engn, Brisbane, Qld 4072, Australia

[7] Griffith Univ, Sch Nat Sci, Nathan Campus, Brisbane, Qld 4111, Australia

[8] Griffith Univ, Queensland Micro & Nanotechnol Ctr, Nathan Campus, Brisbane, Qld 4111, Australia

来源：

CHEMSUSCHEM | 2017年 / 10卷 / 04期

基金：

澳大利亚研究理事会;

关键词：

calcination; nanostructures; photoelectrochemistry; semiconductors; tin; SNS THIN-FILMS; SOLAR; PHOTOCATHODES; TRANSITION; DIRECTION; HYDROGEN;

D O I：

10.1002/cssc.201601603

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new type of SnS2 nanoplate photoelectrode is prepared by using a mild wet-chemical method. Depending on the calcination temperatures, SnS2-based photoelectrodes can either retain their n-type nature with greatly enhanced anodic photocurrent density (ca. 1.2 mA cm(-2) at 0.8V vs. Ag/AgCl) or be completely converted into p-type SnS to generate approximately 0.26 mA cm(-2) cathodic photocurrent density at -0.8 V vs. Ag/AgCl. The dominance of sulfur and tin vacancies are found to account for the dramatically different photoelectrochemical behaviors of n-type SnS2 and p-type SnS photoelectrodes. In addition, the band structures of n-type SnS2 and p-type SnS photoelectrodes are also deduced, which may provide an effective strategy for developing SnS2/SnS films with controllable energy-band levels through a simple calcination treatment.

引用

页码：670 / 674

页数：5

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