Solution-processed intermediate-band solar cells with lead sulfide quantum dots and lead halide perovskites

The intermediate-band solar cell (IBSC) with quantum dots and a bulk semiconductor matrix has potential for high power conversion efficiency, exceeding the Shockley-Queisser limit. However, the IBSCs reported to date have been fabricated only by dry process and their efficiencies are limited, becaus...

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Autores principales: Hosokawa, Hiroji, Tamaki, Ryo, Sawada, Takuya, Okonogi, Akinori, Sato, Haruyuki, Ogomi, Yuhei, Hayase, Shuzi, Okada, Yoshitaka, Yano, Toshihiro
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6327045/
https://www.ncbi.nlm.nih.gov/pubmed/30626874
http://dx.doi.org/10.1038/s41467-018-07655-3
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author Hosokawa, Hiroji
Tamaki, Ryo
Sawada, Takuya
Okonogi, Akinori
Sato, Haruyuki
Ogomi, Yuhei
Hayase, Shuzi
Okada, Yoshitaka
Yano, Toshihiro
author_facet Hosokawa, Hiroji
Tamaki, Ryo
Sawada, Takuya
Okonogi, Akinori
Sato, Haruyuki
Ogomi, Yuhei
Hayase, Shuzi
Okada, Yoshitaka
Yano, Toshihiro
author_sort Hosokawa, Hiroji
collection PubMed
description The intermediate-band solar cell (IBSC) with quantum dots and a bulk semiconductor matrix has potential for high power conversion efficiency, exceeding the Shockley-Queisser limit. However, the IBSCs reported to date have been fabricated only by dry process and their efficiencies are limited, because their photo-absorption layers have low particle density of quantum dots, defects due to lattice strain, and low bandgap energy of bulk semiconductors. Here we present solution-processed IBSCs containing photo-absorption layers where lead sulfide quantum dots are densely dispersed in methylammonium lead bromide perovskite matrices with a high bandgap energy of 2.3 eV under undistorted conditions. We confirm that the present IBSCs exhibit two-step photon absorption via intermediate-band at room temperature by inter-subband photocurrent spectroscopy.
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spelling pubmed-63270452019-03-28 Solution-processed intermediate-band solar cells with lead sulfide quantum dots and lead halide perovskites Hosokawa, Hiroji Tamaki, Ryo Sawada, Takuya Okonogi, Akinori Sato, Haruyuki Ogomi, Yuhei Hayase, Shuzi Okada, Yoshitaka Yano, Toshihiro Nat Commun Article The intermediate-band solar cell (IBSC) with quantum dots and a bulk semiconductor matrix has potential for high power conversion efficiency, exceeding the Shockley-Queisser limit. However, the IBSCs reported to date have been fabricated only by dry process and their efficiencies are limited, because their photo-absorption layers have low particle density of quantum dots, defects due to lattice strain, and low bandgap energy of bulk semiconductors. Here we present solution-processed IBSCs containing photo-absorption layers where lead sulfide quantum dots are densely dispersed in methylammonium lead bromide perovskite matrices with a high bandgap energy of 2.3 eV under undistorted conditions. We confirm that the present IBSCs exhibit two-step photon absorption via intermediate-band at room temperature by inter-subband photocurrent spectroscopy. Nature Publishing Group UK 2019-01-10 /pmc/articles/PMC6327045/ /pubmed/30626874 http://dx.doi.org/10.1038/s41467-018-07655-3 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as 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 images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Hosokawa, Hiroji
Tamaki, Ryo
Sawada, Takuya
Okonogi, Akinori
Sato, Haruyuki
Ogomi, Yuhei
Hayase, Shuzi
Okada, Yoshitaka
Yano, Toshihiro
Solution-processed intermediate-band solar cells with lead sulfide quantum dots and lead halide perovskites
title Solution-processed intermediate-band solar cells with lead sulfide quantum dots and lead halide perovskites
title_full Solution-processed intermediate-band solar cells with lead sulfide quantum dots and lead halide perovskites
title_fullStr Solution-processed intermediate-band solar cells with lead sulfide quantum dots and lead halide perovskites
title_full_unstemmed Solution-processed intermediate-band solar cells with lead sulfide quantum dots and lead halide perovskites
title_short Solution-processed intermediate-band solar cells with lead sulfide quantum dots and lead halide perovskites
title_sort solution-processed intermediate-band solar cells with lead sulfide quantum dots and lead halide perovskites
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6327045/
https://www.ncbi.nlm.nih.gov/pubmed/30626874
http://dx.doi.org/10.1038/s41467-018-07655-3
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