- Title
- Switched photocurrent on tin sulfide-based nanoplate photoelectrodes
- Creator
- Chen, Hongjun; Lyu, Miaoqiang; Zhang, Meng; Feron, Krishna; Searles, Debra J.; Dargusch, Matthew; Yao, Xiangdong; Wang, Lianzhou
- Relation
- ARC
- Relation
- ChemSusChem Vol. 10, Issue 4, p. 670-674
- Publisher Link
- http://dx.doi.org/10.1002/cssc.201601603
- Publisher
- Wiley- VCH Verlag GmbH & Co. KGaA
- Resource Type
- journal article
- Date
- 2017
- Description
- 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 0.8 V 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.
- Subject
- calcination; nanostructures; photoelectrochemistry; semiconductors; tin
- Identifier
- http://hdl.handle.net/1959.13/1351354
- Identifier
- uon:30691
- Identifier
- ISSN:1864-5631
- Language
- eng
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