Han, Lihao and Digdaya, Ibadillah A. and Buijs, Thom W. F. and Abdi, Fatwa F. and Huang, Zhuangqun and Liu, Rui and Dam, Bernard and Zeman, Miro and Smith, Wilson A. and Smets, Arno H. M. (2015) Gradient dopant profiling and spectral utilization of monolithic thin-film silicon photoelectrochemical tandem devices for solar water splitting. Journal of Materials Chemistry A, 3 (8). pp. 4155-4162. ISSN 2050-7488. doi:10.1039/C4TA05523C. https://resolver.caltech.edu/CaltechAUTHORS:20150324-151230776
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Abstract
A cost-effective and earth-abundant photocathode based on hydrogenated amorphous silicon carbide (a-SiC:H) is demonstrated to split water into hydrogen and oxygen using solar energy. A monolithic a-SiC:H photoelectrochemical (PEC) cathode integrated with a hydrogenated amorphous silicon (a-SiC:H)/nano-crystalline silicon (nc-Si:H) double photovoltaic (PV) junction achieved a current density of −5.1 mA cm^(−2) at 0 V versus the reversible hydrogen electrode. The a-SiC:H photocathode used no hydrogen-evolution catalyst and the high current density was obtained using gradient boron doping. The growth of high quality nc-Si:H PV junctions in combination with optimized spectral utilization was achieved using glass substrates with integrated micro-textured photonic structures. The performance of the PEC/PV cathode was analyzed by simulations using Advanced Semiconductor Analysis (ASA) software.
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| Additional Information: | © 2015 The Royal Society of Chemistry. Received 15th October 2014. Accepted 13th November 2014. First published online 13 Nov 2014. The authors would like to thank Guangtao Yang from PVMD group in TU Delft for assistance with substrate preparation, Dr Feng Zhu from MVSystems Inc. and Dr Bruce S. Brunschwig from the Molecular Materials Research Center (MMRC) at California Institute of Technology for helpful scientific discussions. Financial support from the VIDI project (granted to Dr A. H. M. Smets) by NWO-STW is gratefully acknowledged. This research is financed in part by the BioSolar Cells open innovation consortium (W. A. Smith and I. A. Digdaya), supported by the Dutch Ministry of Economic Affairs, Agriculture and Innovation. Z. Huang and R. Liu are supported by the Joint Center for Artificial Photosynthesis, a DOE Energy Innovation Hub, supported through the Office of Science of the U.S. Department of Energy under Award Number DE-SC0004993. | ||||||||||||
| Group: | JCAP | ||||||||||||
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| Issue or Number: | 8 | ||||||||||||
| DOI: | 10.1039/C4TA05523C | ||||||||||||
| Record Number: | CaltechAUTHORS:20150324-151230776 | ||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20150324-151230776 | ||||||||||||
| Official Citation: | Gradient dopant profiling and spectral utilization of monolithic thin-film silicon photoelectrochemical tandem devices for solar water splitting Lihao Han, Ibadillah A. Digdaya, Thom W. F. Buijs, Fatwa F. Abdi, Zhuangqun Huang, Rui Liu, Bernard Dam, Miro Zeman, Wilson A. Smith and Arno H. M. Smets J. Mater. Chem. A, 2015, 3, 4155-4162 DOI: 10.1039/C4TA05523C | ||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||
| ID Code: | 56043 | ||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||
| Deposited By: | Ruth Sustaita | ||||||||||||
| Deposited On: | 24 Mar 2015 22:44 | ||||||||||||
| Last Modified: | 10 Nov 2021 20:53 |
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