Porous perovskite films integrated with Au–Pt nanowire-based electrodes for highly flexible large-area photodetectors

Abstract Flexible, large-area, and stable perovskite photodetectors have drawn increasing widespread research attention for next-generation wearable and portable optoelectronic devices. However, high mechanical durability coupled with large device area and enhanced environmental stability has not be...

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Autores principales:	Rohit Saraf, Hua Fan, Vivek Maheshwari
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Electronics TK7800-8360 Materials of engineering and construction. Mechanics of materials TA401-492
Acceso en línea:	https://doaj.org/article/6b688ac6c34b41bc9f77ef3be61c1591
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spelling	oai:doaj.org-article:6b688ac6c34b41bc9f77ef3be61c15912021-12-02T14:24:12ZPorous perovskite films integrated with Au–Pt nanowire-based electrodes for highly flexible large-area photodetectors10.1038/s41528-020-00094-52397-4621https://doaj.org/article/6b688ac6c34b41bc9f77ef3be61c15912020-11-01T00:00:00Zhttps://doi.org/10.1038/s41528-020-00094-5https://doaj.org/toc/2397-4621Abstract Flexible, large-area, and stable perovskite photodetectors have drawn increasing widespread research attention for next-generation wearable and portable optoelectronic devices. However, high mechanical durability coupled with large device area and enhanced environmental stability has not been demonstrated yet to attain practical viability. Herein, a highly bendable, stable, and large-area (3 cm2) flexible polystyrene incorporated perovskite photodetector is presented. Due to the formation of a porous polystyrene-perovskite composite film in a single step it allows unprecedented mechanical stability, maintaining 85% of its original photocurrent value after 10,000 bending cycles at a bending angle of 120°. Equally crucial, the solution-processed self-assembled Pt–Au nanochains were developed to provide a simple and fast method of patterning the conductive and flexible electrodes onto the filter substrate. The optimized polystyrene-perovskite photodetector exhibits a high responsivity up to 2.73 A W−1, a maximum specific detectivity of 6.2 × 1013 Jones, and a superior switching ratio of 1.0 × 104. In addition, the polystyrene-perovskite photodetector yields excellent stability under the combined stresses of moisture, ambient air, and room light, and retains 92% of its original performance for over 30 days. All these results demonstrate that this work provides a facile and cost-effective approach that paves the way to develop high-performance, stable, and highly flexible optoelectronic devices.Rohit SarafHua FanVivek MaheshwariNature PortfolioarticleElectronicsTK7800-8360Materials of engineering and construction. Mechanics of materialsTA401-492ENnpj Flexible Electronics, Vol 4, Iss 1, Pp 1-8 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Electronics TK7800-8360 Materials of engineering and construction. Mechanics of materials TA401-492
spellingShingle	Electronics TK7800-8360 Materials of engineering and construction. Mechanics of materials TA401-492 Rohit Saraf Hua Fan Vivek Maheshwari Porous perovskite films integrated with Au–Pt nanowire-based electrodes for highly flexible large-area photodetectors
description	Abstract Flexible, large-area, and stable perovskite photodetectors have drawn increasing widespread research attention for next-generation wearable and portable optoelectronic devices. However, high mechanical durability coupled with large device area and enhanced environmental stability has not been demonstrated yet to attain practical viability. Herein, a highly bendable, stable, and large-area (3 cm2) flexible polystyrene incorporated perovskite photodetector is presented. Due to the formation of a porous polystyrene-perovskite composite film in a single step it allows unprecedented mechanical stability, maintaining 85% of its original photocurrent value after 10,000 bending cycles at a bending angle of 120°. Equally crucial, the solution-processed self-assembled Pt–Au nanochains were developed to provide a simple and fast method of patterning the conductive and flexible electrodes onto the filter substrate. The optimized polystyrene-perovskite photodetector exhibits a high responsivity up to 2.73 A W−1, a maximum specific detectivity of 6.2 × 1013 Jones, and a superior switching ratio of 1.0 × 104. In addition, the polystyrene-perovskite photodetector yields excellent stability under the combined stresses of moisture, ambient air, and room light, and retains 92% of its original performance for over 30 days. All these results demonstrate that this work provides a facile and cost-effective approach that paves the way to develop high-performance, stable, and highly flexible optoelectronic devices.
format	article
author	Rohit Saraf Hua Fan Vivek Maheshwari
author_facet	Rohit Saraf Hua Fan Vivek Maheshwari
author_sort	Rohit Saraf
title	Porous perovskite films integrated with Au–Pt nanowire-based electrodes for highly flexible large-area photodetectors
title_short	Porous perovskite films integrated with Au–Pt nanowire-based electrodes for highly flexible large-area photodetectors
title_full	Porous perovskite films integrated with Au–Pt nanowire-based electrodes for highly flexible large-area photodetectors
title_fullStr	Porous perovskite films integrated with Au–Pt nanowire-based electrodes for highly flexible large-area photodetectors
title_full_unstemmed	Porous perovskite films integrated with Au–Pt nanowire-based electrodes for highly flexible large-area photodetectors
title_sort	porous perovskite films integrated with au–pt nanowire-based electrodes for highly flexible large-area photodetectors
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/6b688ac6c34b41bc9f77ef3be61c1591
work_keys_str_mv	AT rohitsaraf porousperovskitefilmsintegratedwithauptnanowirebasedelectrodesforhighlyflexiblelargeareaphotodetectors AT huafan porousperovskitefilmsintegratedwithauptnanowirebasedelectrodesforhighlyflexiblelargeareaphotodetectors AT vivekmaheshwari porousperovskitefilmsintegratedwithauptnanowirebasedelectrodesforhighlyflexiblelargeareaphotodetectors
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Porous perovskite films integrated with Au–Pt nanowire-based electrodes for highly flexible large-area photodetectors

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