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Optically Resonant Bulk Heterojunction PbS Quantum Dot Solar Cell
[Image: see text] We design an optically resonant bulk heterojunction solar cell to study optoelectronic properties of nanostructured p–n junctions. The nanostructures yield strong light–matter interaction as well as distinct charge-carrier extraction behavior, which together improve the overall pow...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9527793/ https://www.ncbi.nlm.nih.gov/pubmed/36036908 http://dx.doi.org/10.1021/acsnano.1c11330 |
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author | Tabernig, Stefan W. Yuan, Lin Cordaro, Andrea Teh, Zhi Li Gao, Yijun Patterson, Robert J. Pusch, Andreas Huang, Shujuan Polman, Albert |
author_facet | Tabernig, Stefan W. Yuan, Lin Cordaro, Andrea Teh, Zhi Li Gao, Yijun Patterson, Robert J. Pusch, Andreas Huang, Shujuan Polman, Albert |
author_sort | Tabernig, Stefan W. |
collection | PubMed |
description | [Image: see text] We design an optically resonant bulk heterojunction solar cell to study optoelectronic properties of nanostructured p–n junctions. The nanostructures yield strong light–matter interaction as well as distinct charge-carrier extraction behavior, which together improve the overall power conversion efficiency. We demonstrate high-resolution substrate conformal soft-imprint lithography technology in combination with state-of-the art ZnO nanoparticles to create a nanohole template in an electron transport layer. The nanoholes are infiltrated with PbS quantum dots (QDs) to form a nanopatterned depleted heterojunction. Optical simulations show that the absorption per unit volume in the cylindrical QD absorber layer is enhanced by 19.5% compared to a planar reference. This is achieved for a square array of QD nanopillars of 330 nm height and 320 nm diameter, with a pitch of 500 nm on top of a residual QD layer of 70 nm, surrounded by ZnO. Electronic simulations show that the patterning results in a current gain of 3.2 mA/cm(2) and a slight gain in voltage, yielding an efficiency gain of 0.4%. Our simulations further show that the fill factor is highly sensitive to the patterned structure. This is explained by the electric field strength varying strongly across the patterned absorber. We outline a path toward further optimized optically resonant nanopattern geometries with enhanced carrier collection properties. We demonstrate a 0.74 mA/cm(2) current gain for a patterned cell compared to a planar cell in experiments, owing to a much improved infrared response, as predicted by our simulations. |
format | Online Article Text |
id | pubmed-9527793 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-95277932022-10-04 Optically Resonant Bulk Heterojunction PbS Quantum Dot Solar Cell Tabernig, Stefan W. Yuan, Lin Cordaro, Andrea Teh, Zhi Li Gao, Yijun Patterson, Robert J. Pusch, Andreas Huang, Shujuan Polman, Albert ACS Nano [Image: see text] We design an optically resonant bulk heterojunction solar cell to study optoelectronic properties of nanostructured p–n junctions. The nanostructures yield strong light–matter interaction as well as distinct charge-carrier extraction behavior, which together improve the overall power conversion efficiency. We demonstrate high-resolution substrate conformal soft-imprint lithography technology in combination with state-of-the art ZnO nanoparticles to create a nanohole template in an electron transport layer. The nanoholes are infiltrated with PbS quantum dots (QDs) to form a nanopatterned depleted heterojunction. Optical simulations show that the absorption per unit volume in the cylindrical QD absorber layer is enhanced by 19.5% compared to a planar reference. This is achieved for a square array of QD nanopillars of 330 nm height and 320 nm diameter, with a pitch of 500 nm on top of a residual QD layer of 70 nm, surrounded by ZnO. Electronic simulations show that the patterning results in a current gain of 3.2 mA/cm(2) and a slight gain in voltage, yielding an efficiency gain of 0.4%. Our simulations further show that the fill factor is highly sensitive to the patterned structure. This is explained by the electric field strength varying strongly across the patterned absorber. We outline a path toward further optimized optically resonant nanopattern geometries with enhanced carrier collection properties. We demonstrate a 0.74 mA/cm(2) current gain for a patterned cell compared to a planar cell in experiments, owing to a much improved infrared response, as predicted by our simulations. American Chemical Society 2022-08-29 2022-09-27 /pmc/articles/PMC9527793/ /pubmed/36036908 http://dx.doi.org/10.1021/acsnano.1c11330 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Tabernig, Stefan W. Yuan, Lin Cordaro, Andrea Teh, Zhi Li Gao, Yijun Patterson, Robert J. Pusch, Andreas Huang, Shujuan Polman, Albert Optically Resonant Bulk Heterojunction PbS Quantum Dot Solar Cell |
title | Optically Resonant
Bulk Heterojunction PbS Quantum
Dot Solar Cell |
title_full | Optically Resonant
Bulk Heterojunction PbS Quantum
Dot Solar Cell |
title_fullStr | Optically Resonant
Bulk Heterojunction PbS Quantum
Dot Solar Cell |
title_full_unstemmed | Optically Resonant
Bulk Heterojunction PbS Quantum
Dot Solar Cell |
title_short | Optically Resonant
Bulk Heterojunction PbS Quantum
Dot Solar Cell |
title_sort | optically resonant
bulk heterojunction pbs quantum
dot solar cell |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9527793/ https://www.ncbi.nlm.nih.gov/pubmed/36036908 http://dx.doi.org/10.1021/acsnano.1c11330 |
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