Solution-Processed, Self-Powered Broadband CH3NH3PbI3 Photodetectors Driven by Asymmetric Electrodes

Chandrasekar Perumal Veeramalai; Shengyi Yang; Ruonan Zhi; Muhammad Sulaman; Muhammad Imran Saleem; Yanyan Cui; Yi Tang; Yurong Jiang; Libin Tang; Bingsuo Zou

doi:10.1002/adom.202000215

Solution-Processed, Self-Powered Broadband CH₃NH₃PbI₃ Photodetectors Driven by Asymmetric Electrodes

Chandrasekar Perumal Veeramalai, Shengyi Yang^*, Ruonan Zhi, Muhammad Sulaman, Muhammad Imran Saleem, Yanyan Cui, Yi Tang, Yurong Jiang, Libin Tang, Bingsuo Zou

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

47 Citations (Scopus)

Abstract

In general, the fabrication of high-performance, self-powered broadband photodetectors based on traditional semiconducting thin films is tedious and costly. Here, in this paper a high-performance, solution-processed, and self-powered CH₃NH₃PbI₃ (MAPbI₃) nanocrystal based photodetector ITO/MAPbI₃/Ag is presented, and it shows broadband photoresponse from the visible to the near-infrared wavelength region. The pronounced enhanced performance of the photodetector is due to taking the advantage of the built-in electric field induced by the work function difference of two electrodes. The optimized photodetector shows a responsivity of 4.9 and 1.42 A W⁻¹ with a specific detectivity of 7.6 × 10¹³ and 1.77 × 10¹³ Jones under 19 µW cm⁻² white light illumination and 26 µW cm⁻² 808 nm illumination at zero bias, respectively. Therefore, such a concept of simple device geometry and feasible technique will open up a new and promising avenue for the fabrication of self-powered photodetectors and the development of imaging devices.

Original language	English
Article number	2000215
Journal	Advanced Optical Materials
Volume	8
Issue number	15
DOIs	https://doi.org/10.1002/adom.202000215
Publication status	Published - 1 Aug 2020

Keywords

CHNHPbI nanocrystals
broadband photodetectors
ligand-assisted reprecipitation (LARP)
photocurrent imaging

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title = "Solution-Processed, Self-Powered Broadband CH3NH3PbI3 Photodetectors Driven by Asymmetric Electrodes",

abstract = "In general, the fabrication of high-performance, self-powered broadband photodetectors based on traditional semiconducting thin films is tedious and costly. Here, in this paper a high-performance, solution-processed, and self-powered CH3NH3PbI3 (MAPbI3) nanocrystal based photodetector ITO/MAPbI3/Ag is presented, and it shows broadband photoresponse from the visible to the near-infrared wavelength region. The pronounced enhanced performance of the photodetector is due to taking the advantage of the built-in electric field induced by the work function difference of two electrodes. The optimized photodetector shows a responsivity of 4.9 and 1.42 A W−1 with a specific detectivity of 7.6 × 1013 and 1.77 × 1013 Jones under 19 µW cm−2 white light illumination and 26 µW cm−2 808 nm illumination at zero bias, respectively. Therefore, such a concept of simple device geometry and feasible technique will open up a new and promising avenue for the fabrication of self-powered photodetectors and the development of imaging devices.",

keywords = "CHNHPbI nanocrystals, broadband photodetectors, ligand-assisted reprecipitation (LARP), photocurrent imaging",

author = "{Perumal Veeramalai}, Chandrasekar and Shengyi Yang and Ruonan Zhi and Muhammad Sulaman and Saleem, {Muhammad Imran} and Yanyan Cui and Yi Tang and Yurong Jiang and Libin Tang and Bingsuo Zou",

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AU - Perumal Veeramalai, Chandrasekar

AU - Yang, Shengyi

AU - Zhi, Ruonan

AU - Sulaman, Muhammad

AU - Saleem, Muhammad Imran

AU - Cui, Yanyan

AU - Tang, Yi

AU - Jiang, Yurong

AU - Tang, Libin

AU - Zou, Bingsuo

PY - 2020/8/1

Y1 - 2020/8/1

N2 - In general, the fabrication of high-performance, self-powered broadband photodetectors based on traditional semiconducting thin films is tedious and costly. Here, in this paper a high-performance, solution-processed, and self-powered CH3NH3PbI3 (MAPbI3) nanocrystal based photodetector ITO/MAPbI3/Ag is presented, and it shows broadband photoresponse from the visible to the near-infrared wavelength region. The pronounced enhanced performance of the photodetector is due to taking the advantage of the built-in electric field induced by the work function difference of two electrodes. The optimized photodetector shows a responsivity of 4.9 and 1.42 A W−1 with a specific detectivity of 7.6 × 1013 and 1.77 × 1013 Jones under 19 µW cm−2 white light illumination and 26 µW cm−2 808 nm illumination at zero bias, respectively. Therefore, such a concept of simple device geometry and feasible technique will open up a new and promising avenue for the fabrication of self-powered photodetectors and the development of imaging devices.

AB - In general, the fabrication of high-performance, self-powered broadband photodetectors based on traditional semiconducting thin films is tedious and costly. Here, in this paper a high-performance, solution-processed, and self-powered CH3NH3PbI3 (MAPbI3) nanocrystal based photodetector ITO/MAPbI3/Ag is presented, and it shows broadband photoresponse from the visible to the near-infrared wavelength region. The pronounced enhanced performance of the photodetector is due to taking the advantage of the built-in electric field induced by the work function difference of two electrodes. The optimized photodetector shows a responsivity of 4.9 and 1.42 A W−1 with a specific detectivity of 7.6 × 1013 and 1.77 × 1013 Jones under 19 µW cm−2 white light illumination and 26 µW cm−2 808 nm illumination at zero bias, respectively. Therefore, such a concept of simple device geometry and feasible technique will open up a new and promising avenue for the fabrication of self-powered photodetectors and the development of imaging devices.

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Solution-Processed, Self-Powered Broadband CH₃NH₃PbI₃ Photodetectors Driven by Asymmetric Electrodes

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Keywords

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