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Issue 7, 2017
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Band-aligned C3N4−xS3x/2 stabilizes CdS/CuInGaS2 photocathodes for efficient water reduction

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Abstract

Compared with bare CIGS films and CdS-modified CIGS films (CdS/CIGS), C3N4−xS3x/2/CdS/CIGS electrodes exhibit a reduction of 200 mV in the onset potential. They also show a doubled photocurrent at 0 V versus the RHE, and a broadband 20% enhancement of incident photon to current efficiency (IPCE) in noble-metal-free systems. Remarkably, the C3N4−xS3x/2/CdS/CIGS electrode shows ≤5% loss over 20 hours of continuous operation, whereas bare CdS/CIGS shows a rapid degradation within the first 4 hours.

Graphical abstract: Band-aligned C3N4−xS3x/2 stabilizes CdS/CuInGaS2 photocathodes for efficient water reduction

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Publication details

The article was received on 28 Nov 2016, accepted on 24 Jan 2017 and first published on 24 Jan 2017


Article type: Communication
DOI: 10.1039/C6TA10222K
Citation: J. Mater. Chem. A, 2017,5, 3167-3171
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    Band-aligned C3N4−xS3x/2 stabilizes CdS/CuInGaS2 photocathodes for efficient water reduction

    D. Wang, C. Wang, F. P. García de Arquer, J. Zhong, L. Qian, L. Fang, P. Liu, Y. Pang, M. Liu, M. Liu, G. Zheng, D. Sinton, E. H. Sargent, H. Yang and B. Zhang, J. Mater. Chem. A, 2017, 5, 3167
    DOI: 10.1039/C6TA10222K

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