Coronel, Naomi C. and Lahourcade, Lise and Delaney, Kris T. and Shing, Amanda M. and Atwater, Harry A. (2012) Earth-abundant ZnSn_xGe_(1−x)N_2 alloys as potential photovoltaic absorber materials. In: 38th IEEE Photovoltaic Specialists Conference. IEEE , Piscataway, NJ, pp. 3204-3207. ISBN 978-1-4673-0064-3. https://resolver.caltech.edu/CaltechAUTHORS:20121010-145544413
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Abstract
Large-scale energy demands will require low-cost, earth-abundant materials for high efficiency solar energy conversion. Here we present ZnSn_xGe_(1−x)N_2 as a tunable band gap photovoltaic absorber layer with a predicted range of 1.4 eV to 2.9 eV. Thin films of ZnSn_xGe_(1−x)N_2 are synthesized by reactive RF co-sputtering with a wide range of compositions. X-ray diffraction shows a linear shift in lattice parameter with changing composition, indicating no phase separation. These results suggest that ZnSn_xGe_(1−x)N_2 can potentially be tuned to span a large portion of the solar spectrum and could therefore be a viable earth-abundant photovoltaic material.
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| Additional Information: | © 2011 IEEE. Date of Current Version: 04 October 2012. The authors would like to acknowledge funding from the US Department of Energy under grant DE-FG02-07ER46405 and from the DOW Chemical Company. | |||||||||
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| Subject Keywords: | germanium alloys, semiconductor materials, solar energy, sputtering, thin films, tin alloys | |||||||||
| DOI: | 10.1109/PVSC.2012.6318259 | |||||||||
| Record Number: | CaltechAUTHORS:20121010-145544413 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20121010-145544413 | |||||||||
| Official Citation: | Coronel, Naomi C.; Lahourcade, Lise; Delaney, Kris T.; Shing, Amanda M.; Atwater, Harry A.; , "Earth-abundant ZnSnxGe1−xN2 alloys as potential photovoltaic absorber materials," Photovoltaic Specialists Conference (PVSC), 2012 38th IEEE , vol., no., pp.003204-003207, 3-8 June 2012 doi: 10.1109/PVSC.2012.6318259 URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6318259&isnumber=6317554 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 34833 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Tony Diaz | |||||||||
| Deposited On: | 11 Oct 2012 18:38 | |||||||||
| Last Modified: | 09 Nov 2021 23:10 |
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