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Ultrasensitive broadband phototransistors based on perovskite/organic-semiconductor vertical heterojunctions
Organolead halide perovskites have emerged as the most promising materials for various optoelectronic devices, especially solar cells, because of their excellent optoelectronic properties. Here, we present the first report of low-voltage high-gain phototransistors based on perovskite/organic-semicon...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6062319/ https://www.ncbi.nlm.nih.gov/pubmed/30167278 http://dx.doi.org/10.1038/lsa.2017.23 |
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author | Xie, Chao You, Peng Liu, Zhike Li, Li Yan, Feng |
author_facet | Xie, Chao You, Peng Liu, Zhike Li, Li Yan, Feng |
author_sort | Xie, Chao |
collection | PubMed |
description | Organolead halide perovskites have emerged as the most promising materials for various optoelectronic devices, especially solar cells, because of their excellent optoelectronic properties. Here, we present the first report of low-voltage high-gain phototransistors based on perovskite/organic-semiconductor vertical heterojunctions, which show ultrahigh responsivities of ~10(9)A W(–1) and specific detectivities of ~10(14) Jones in a broadband region from the ultraviolet to the near infrared. The high sensitivity of the devices is attributed to a pronounced photogating effect that is mainly due to the long carrier lifetimes and strong light absorption in the perovskite material. In addition, flexible perovskite photodetectors have been successfully prepared via a solution process and show high sensitivity as well as excellent flexibility and bending durability. The high performance and facile solution-based fabrication of the perovskite/organic-semiconductor phototransistors indicate their promise for potential application for ultrasensitive broadband photodetection. |
format | Online Article Text |
id | pubmed-6062319 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group |
record_format | MEDLINE/PubMed |
spelling | pubmed-60623192018-08-30 Ultrasensitive broadband phototransistors based on perovskite/organic-semiconductor vertical heterojunctions Xie, Chao You, Peng Liu, Zhike Li, Li Yan, Feng Light Sci Appl Original Article Organolead halide perovskites have emerged as the most promising materials for various optoelectronic devices, especially solar cells, because of their excellent optoelectronic properties. Here, we present the first report of low-voltage high-gain phototransistors based on perovskite/organic-semiconductor vertical heterojunctions, which show ultrahigh responsivities of ~10(9)A W(–1) and specific detectivities of ~10(14) Jones in a broadband region from the ultraviolet to the near infrared. The high sensitivity of the devices is attributed to a pronounced photogating effect that is mainly due to the long carrier lifetimes and strong light absorption in the perovskite material. In addition, flexible perovskite photodetectors have been successfully prepared via a solution process and show high sensitivity as well as excellent flexibility and bending durability. The high performance and facile solution-based fabrication of the perovskite/organic-semiconductor phototransistors indicate their promise for potential application for ultrasensitive broadband photodetection. Nature Publishing Group 2017-08-11 /pmc/articles/PMC6062319/ /pubmed/30167278 http://dx.doi.org/10.1038/lsa.2017.23 Text en Copyright © 2017 The Author(s) http://creativecommons.org/licenses/by-nc-nd/4.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/ |
spellingShingle | Original Article Xie, Chao You, Peng Liu, Zhike Li, Li Yan, Feng Ultrasensitive broadband phototransistors based on perovskite/organic-semiconductor vertical heterojunctions |
title | Ultrasensitive broadband phototransistors based on perovskite/organic-semiconductor vertical heterojunctions |
title_full | Ultrasensitive broadband phototransistors based on perovskite/organic-semiconductor vertical heterojunctions |
title_fullStr | Ultrasensitive broadband phototransistors based on perovskite/organic-semiconductor vertical heterojunctions |
title_full_unstemmed | Ultrasensitive broadband phototransistors based on perovskite/organic-semiconductor vertical heterojunctions |
title_short | Ultrasensitive broadband phototransistors based on perovskite/organic-semiconductor vertical heterojunctions |
title_sort | ultrasensitive broadband phototransistors based on perovskite/organic-semiconductor vertical heterojunctions |
topic | Original Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6062319/ https://www.ncbi.nlm.nih.gov/pubmed/30167278 http://dx.doi.org/10.1038/lsa.2017.23 |
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