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Piezo-phototronic Effect Enhanced Photodetector Based on MAPbI3 Perovskite

Jiaheng Nie, Yan Zhang, Lijie Li Orcid Logo, Jizheng Wang

Journal of Materials Chemistry C, Issue: 8, Pages: 2709 - 2718

Swansea University Author: Lijie Li Orcid Logo

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DOI (Published version): 10.1039/c9tc05721h

Abstract

Recent research on hybrid organic–inorganic perovskites has greatly advanced the fields of photovoltaics, photodetection, and light emission. The emergence of piezotronics and piezo-phototronics has led to tremendous high-performance devices that are based on piezoelectric materials. Although many p...

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Published in: Journal of Materials Chemistry C
ISSN: 2050-7526 2050-7534
Published: Royal Society of Chemistry (RSC) 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa53279
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Abstract: Recent research on hybrid organic–inorganic perovskites has greatly advanced the fields of photovoltaics, photodetection, and light emission. The emergence of piezotronics and piezo-phototronics has led to tremendous high-performance devices that are based on piezoelectric materials. Although many previous research studies were centered around single crystal hybrid perovskites, polycrystalline materials are easier to fabricate, such as by using a solution-process, and have many other advantages, e.g. low cost, low environmental requirements, and high conversion efficiency. So far, there are very few reports of piezotronically modulated polycrystalline perovskite devices. Here, a novel piezo-phototronic effect enhanced photodetector based on MAPbI3 polycrystalline perovskite is designed, fabricated, and subsequently characterized. With polycrystalline materials, it is seen that the device performances can be significantly enhanced using the piezo-phototronic effect. Moreover, the polycrystalline perovskite introduces unprecedented potential to fine tune the devices from weak to strong piezoelectric performance. Our study explores the possibility of using polycrystalline perovskites to create high performance strain-controlled piezo-phototronic devices, which will have promising applications in the internet of things, multifunctional micro/nanoelectromechanical devices and sensor networks.
Item Description: This article is part of the themed collection: Journal of Materials Chemistry C HOT Papers
Issue: 8
Start Page: 2709
End Page: 2718

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