Wu, L;
Dzade, NY;
Gao, L;
Scanlon, DO;
Öztürk, Z;
Hollingsworth, N;
Weckhuysen, BM;
... Hofmann, JP; + view all
(2016)
Enhanced Photoresponse of FeS2 Films: The Role of Marcasite-Pyrite Phase Junctions.
Advanced Materials
, 28
(43)
pp. 9602-9607.
10.1002/adma.201602222.
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Abstract
The beneficial role of marcasite in iron-sulfide-based photo-electrochemical applications is reported for the first time. A spectacular improvement of the photoresponse observed experimentally for mixed pyrite/marcasite-FeS2 films can be ascribed to the presence of p/m phase junctions at the interface. Density functional theory calculations show that the band alignment at the phase boundary contributes to enhanced charge separation and transfer across the interface.
Type: | Article |
---|---|
Title: | Enhanced Photoresponse of FeS2 Films: The Role of Marcasite-Pyrite Phase Junctions |
Location: | Germany |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1002/adma.201602222 |
Publisher version: | http://dx.doi.org/10.1002/adma.201602222 |
Language: | English |
Additional information: | This is the peer reviewed version of the following article: Wu, L; Dzade, NY; Gao, L; Scanlon, DO; Öztürk, Z; Hollingsworth, N; Weckhuysen, BM; (2016) Enhanced Photoresponse of FeS2 Films: The Role of Marcasite-Pyrite Phase Junctions. Advanced Materials, 28 (43) pp. 9602-9607, which has been published in final form at: http://dx.doi.org/10.1002/adma.201602222. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving (http://olabout.wiley.com/WileyCDA/Section/id-828039.html#terms). |
Keywords: | band alignment, charge separation, marcasite, phase junctions, pyrite |
UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry |
URI: | https://discovery.ucl.ac.uk/id/eprint/1518142 |
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