Enhanced Photoelectrical Response of Hydrogenated Amorphous Silicon Single-Nanowire Solar Cells by Front-Opening Crescent Design

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 sh...

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Autores principales: Yang, Zhenhai, Cao, Guoyang, Shang, Aixue, Lei, Dang Yuan, Zhang, Cheng, Gao, Pingqi, Ye, Jichun, Li, Xiaofeng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer US 2016
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4851682/
https://www.ncbi.nlm.nih.gov/pubmed/27129685
http://dx.doi.org/10.1186/s11671-016-1447-0
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author Yang, Zhenhai
Cao, Guoyang
Shang, Aixue
Lei, Dang Yuan
Zhang, Cheng
Gao, Pingqi
Ye, Jichun
Li, Xiaofeng
author_facet Yang, Zhenhai
Cao, Guoyang
Shang, Aixue
Lei, Dang Yuan
Zhang, Cheng
Gao, Pingqi
Ye, Jichun
Li, Xiaofeng
author_sort Yang, Zhenhai
collection PubMed
description 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.
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spelling pubmed-48516822016-05-17 Enhanced Photoelectrical Response of Hydrogenated Amorphous Silicon Single-Nanowire Solar Cells by Front-Opening Crescent Design Yang, Zhenhai Cao, Guoyang Shang, Aixue Lei, Dang Yuan Zhang, Cheng Gao, Pingqi Ye, Jichun Li, Xiaofeng Nanoscale Res Lett Nano Express 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. Springer US 2016-04-29 /pmc/articles/PMC4851682/ /pubmed/27129685 http://dx.doi.org/10.1186/s11671-016-1447-0 Text en © Yang et al. 2016 Open AccessThis 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.
spellingShingle Nano Express
Yang, Zhenhai
Cao, Guoyang
Shang, Aixue
Lei, Dang Yuan
Zhang, Cheng
Gao, Pingqi
Ye, Jichun
Li, Xiaofeng
Enhanced Photoelectrical Response of Hydrogenated Amorphous Silicon Single-Nanowire Solar Cells by Front-Opening Crescent Design
title Enhanced Photoelectrical Response of Hydrogenated Amorphous Silicon Single-Nanowire Solar Cells by Front-Opening Crescent Design
title_full Enhanced Photoelectrical Response of Hydrogenated Amorphous Silicon Single-Nanowire Solar Cells by Front-Opening Crescent Design
title_fullStr Enhanced Photoelectrical Response of Hydrogenated Amorphous Silicon Single-Nanowire Solar Cells by Front-Opening Crescent Design
title_full_unstemmed Enhanced Photoelectrical Response of Hydrogenated Amorphous Silicon Single-Nanowire Solar Cells by Front-Opening Crescent Design
title_short Enhanced Photoelectrical Response of Hydrogenated Amorphous Silicon Single-Nanowire Solar Cells by Front-Opening Crescent Design
title_sort enhanced photoelectrical response of hydrogenated amorphous silicon single-nanowire solar cells by front-opening crescent design
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4851682/
https://www.ncbi.nlm.nih.gov/pubmed/27129685
http://dx.doi.org/10.1186/s11671-016-1447-0
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