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http://hdl.handle.net/10397/61351
Title: | Enhanced photoelectrical response of hydrogenated amorphous silicon single-nanowire solar cells by front-opening crescent design | Authors: | Yang, Z Cao, G Shang, A Lei, DY Zhang, C Gao, P Ye, J Li, X |
Issue Date: | 2016 | Source: | Nanoscale research letters, 2016, v. 11, 233, p. 1-7 | Abstract: | We report an approach for substantially enhancing the light-trapping and photoconversion efficiency of hydrogenated amorphous silicon (a-Si:H) single-nanowire solar cells (SNSCs) by engineering the cross section of the nanowire from circular into a front-opening crescent shape. The proposed SNSCs show a broadband and highly tunable optical absorption compared to the conventional circular counterparts under both transverse electric and transverse magnetic incidences, enabling an enhancement ratio of over 40 % in both the photocurrent density and the photoconversion efficiency in a-Si:H SNSCs with a diameter of 200 nm. We further show that the superior performance can be well maintained under a wide range of incident angle and is robust to the blunt crescent edges. | Keywords: | Coupled optoelectronic simulation Crescent Light-trapping Single-nanowire solar cells |
Publisher: | Springer | Journal: | Nanoscale research letters | ISSN: | 1931-7573 (print) 1556-276X (online) |
DOI: | 10.1186/s11671-016-1447-0 | Rights: | © 2016 Yang et al. Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The following publication Yang, Z., Cao, G., Shang, A., Lei, D. Y., Zhang, C., Gao, P., … Li, X. (2016). Enhanced photoelectrical response of hydrogenated amorphous silicon single-nanowire solar cells by front-opening crescent design. Nanoscale Research Letters, 11, 233, 1-7 is available at https://dx.doi.org/10.1186/s11671-016-1447-0 |
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