Light management holds great promise of realizing high-performance perovskite solar cells by improving the sunlight absorption with lower recombination current and thus higher power conversion efficiency (PCE). Here, a convenient and scalable light trapping scheme is demonstrated by incorporating bioinspired moth-eye nanostructures into the metal back electrode via soft imprinting technique to enhance the light harvesting in organic–inorganic lead halide perovskite solar cells. Compared to the flat reference cell with a methylammonium lead halide perovskite (CH3NH3PbI3−xClx) absorber, 14.3% of short-circuit current improvement is achieved for the patterned devices with moth-eye nanostructures, yielding an increased PCE up to 16.31% without sacrificing the open-circuit voltage and fill factor. The experimental and theoretical characterizations verify that the cell performance enhancement is mainly ascribed by the broadband polarization-insensitive light scattering and surface plasmonic effects due to the patterned metal back electrode. It is noteworthy that this light trapping strategy is fully compatible with solution-processed perovskite solar cells and opens up many opportunities toward the future photovoltaic applications.
%0 Journal Article
%1 AENM:AENM201700492
%A Wei, Jian
%A Xu, Rui-Peng
%A Li, Yan-Qing
%A Li, Chi
%A Chen, Jing-De
%A Zhao, Xin-Dong
%A Xie, Zhong-Zhi
%A Lee, Chun-Sing
%A Zhang, Wen-Jun
%A Tang, Jian-Xin
%D 2017
%J Advanced Energy Materials
%K nanostructures perovskite
%P n/a--n/a
%R 10.1002/aenm.201700492
%T Enhanced Light Harvesting in Perovskite Solar Cells by a Bioinspired Nanostructured Back Electrode
%U http://dx.doi.org/10.1002/aenm.201700492
%X Light management holds great promise of realizing high-performance perovskite solar cells by improving the sunlight absorption with lower recombination current and thus higher power conversion efficiency (PCE). Here, a convenient and scalable light trapping scheme is demonstrated by incorporating bioinspired moth-eye nanostructures into the metal back electrode via soft imprinting technique to enhance the light harvesting in organic–inorganic lead halide perovskite solar cells. Compared to the flat reference cell with a methylammonium lead halide perovskite (CH3NH3PbI3−xClx) absorber, 14.3% of short-circuit current improvement is achieved for the patterned devices with moth-eye nanostructures, yielding an increased PCE up to 16.31% without sacrificing the open-circuit voltage and fill factor. The experimental and theoretical characterizations verify that the cell performance enhancement is mainly ascribed by the broadband polarization-insensitive light scattering and surface plasmonic effects due to the patterned metal back electrode. It is noteworthy that this light trapping strategy is fully compatible with solution-processed perovskite solar cells and opens up many opportunities toward the future photovoltaic applications.
@article{AENM:AENM201700492,
abstract = {Light management holds great promise of realizing high-performance perovskite solar cells by improving the sunlight absorption with lower recombination current and thus higher power conversion efficiency (PCE). Here, a convenient and scalable light trapping scheme is demonstrated by incorporating bioinspired moth-eye nanostructures into the metal back electrode via soft imprinting technique to enhance the light harvesting in organic–inorganic lead halide perovskite solar cells. Compared to the flat reference cell with a methylammonium lead halide perovskite (CH3NH3PbI3−xClx) absorber, 14.3% of short-circuit current improvement is achieved for the patterned devices with moth-eye nanostructures, yielding an increased PCE up to 16.31% without sacrificing the open-circuit voltage and fill factor. The experimental and theoretical characterizations verify that the cell performance enhancement is mainly ascribed by the broadband polarization-insensitive light scattering and surface plasmonic effects due to the patterned metal back electrode. It is noteworthy that this light trapping strategy is fully compatible with solution-processed perovskite solar cells and opens up many opportunities toward the future photovoltaic applications.},
added-at = {2017-07-18T11:07:06.000+0200},
author = {Wei, Jian and Xu, Rui-Peng and Li, Yan-Qing and Li, Chi and Chen, Jing-De and Zhao, Xin-Dong and Xie, Zhong-Zhi and Lee, Chun-Sing and Zhang, Wen-Jun and Tang, Jian-Xin},
biburl = {https://www.bibsonomy.org/bibtex/2350b6ac98f663d4c57c975103db80107/cgoehler},
doi = {10.1002/aenm.201700492},
interhash = {cfedeec2524fd10791ebd5a5c6a0221f},
intrahash = {350b6ac98f663d4c57c975103db80107},
issn = {1614-6840},
journal = {Advanced Energy Materials},
keywords = {nanostructures perovskite},
pages = {n/a--n/a},
timestamp = {2017-07-18T11:07:06.000+0200},
title = {Enhanced Light Harvesting in Perovskite Solar Cells by a Bioinspired Nanostructured Back Electrode},
url = {http://dx.doi.org/10.1002/aenm.201700492},
year = 2017
}