High-Detectivity and Stable Planar MAPbI/IDT-BT Photodetectors with Assisted MoO Interlayer

Keyang Zhao; Jianxiong Zou; Fanming Huang; Tian Tian; Zhibin Shao; Wei Tian; Junhao Chu; Wenwu Li

doi:10.1109/TED.2021.3123560

High-Detectivity and Stable Planar MAPbI/IDT-BT Photodetectors with Assisted MoO Interlayer

Keyang Zhao
, Jianxiong Zou
, Fanming Huang
, Tian Tian^*
, Zhibin Shao
, Wei Tian
, Junhao Chu
, Wenwu Li^*

^*Corresponding author for this work

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

2 Scopus citations

Abstract

Composited with electronic functional materials is an effective way to improve the performance and stability of organic-inorganic hybrid halide perovskite photodetectors. Herein, a planar photoconductive photodetector based on a CH3NH3PbI3 (MAPbI3)/IDT-BT/MoO3 structure was designed and fabricated. Indacenodithiophene-co-benzothiadiazole (IDT-BT) and MoO3 layers are beneficial for photogenerated holes transmission and improve the dissociation efficiency of photogenerated electron-hole pairs. On the other hand, MoO3 as an electron-blocking layer can suppress the dark current. The device displays a fast response time of less than 7 ms, a high responsivity of 11.6 AW-1, and an ultrahigh detectivity up to $5.2\times10$ 13 Jones. In addition, the IDT-BT layer can isolate MAPbI3 from oxygen and water, thus increasing the stable lifetime of devices to more than 20 days. These parameters are several times higher than pristine MAPbI3 photoconductive photodetectors. These results can offer a feasible and effective method for integrating the composite material to improve the performance of perovskite-based devices.

Original language	English
Pages (from-to)	6266-6272
Number of pages	7
Journal	IEEE Transactions on Electron Devices
Volume	68
Issue number	12
DOIs	https://doi.org/10.1109/TED.2021.3123560
State	Published - 1 Dec 2021
Externally published	Yes

Keywords

Dark current
detectivity
holes transmission
interface engineering
perovskite photodetectors

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@article{5e6600908a404485901ea9ee4bd6e0ee,

title = "High-Detectivity and Stable Planar MAPbI/IDT-BT Photodetectors with Assisted MoO Interlayer",

abstract = "Composited with electronic functional materials is an effective way to improve the performance and stability of organic-inorganic hybrid halide perovskite photodetectors. Herein, a planar photoconductive photodetector based on a CH3NH3PbI3 (MAPbI3)/IDT-BT/MoO3 structure was designed and fabricated. Indacenodithiophene-co-benzothiadiazole (IDT-BT) and MoO3 layers are beneficial for photogenerated holes transmission and improve the dissociation efficiency of photogenerated electron-hole pairs. On the other hand, MoO3 as an electron-blocking layer can suppress the dark current. The device displays a fast response time of less than 7 ms, a high responsivity of 11.6 AW-1, and an ultrahigh detectivity up to \$5.2\textbackslash{}times10\$ 13 Jones. In addition, the IDT-BT layer can isolate MAPbI3 from oxygen and water, thus increasing the stable lifetime of devices to more than 20 days. These parameters are several times higher than pristine MAPbI3 photoconductive photodetectors. These results can offer a feasible and effective method for integrating the composite material to improve the performance of perovskite-based devices.",

keywords = "Dark current, detectivity, holes transmission, interface engineering, perovskite photodetectors",

author = "Keyang Zhao and Jianxiong Zou and Fanming Huang and Tian Tian and Zhibin Shao and Wei Tian and Junhao Chu and Wenwu Li",

note = "Publisher Copyright: {\textcopyright} 1963-2012 IEEE.",

year = "2021",

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doi = "10.1109/TED.2021.3123560",

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TY - JOUR

T1 - High-Detectivity and Stable Planar MAPbI/IDT-BT Photodetectors with Assisted MoO Interlayer

AU - Zhao, Keyang

AU - Zou, Jianxiong

AU - Huang, Fanming

AU - Tian, Tian

AU - Shao, Zhibin

AU - Tian, Wei

AU - Chu, Junhao

AU - Li, Wenwu

PY - 2021/12/1

Y1 - 2021/12/1

N2 - Composited with electronic functional materials is an effective way to improve the performance and stability of organic-inorganic hybrid halide perovskite photodetectors. Herein, a planar photoconductive photodetector based on a CH3NH3PbI3 (MAPbI3)/IDT-BT/MoO3 structure was designed and fabricated. Indacenodithiophene-co-benzothiadiazole (IDT-BT) and MoO3 layers are beneficial for photogenerated holes transmission and improve the dissociation efficiency of photogenerated electron-hole pairs. On the other hand, MoO3 as an electron-blocking layer can suppress the dark current. The device displays a fast response time of less than 7 ms, a high responsivity of 11.6 AW-1, and an ultrahigh detectivity up to $5.2\times10$ 13 Jones. In addition, the IDT-BT layer can isolate MAPbI3 from oxygen and water, thus increasing the stable lifetime of devices to more than 20 days. These parameters are several times higher than pristine MAPbI3 photoconductive photodetectors. These results can offer a feasible and effective method for integrating the composite material to improve the performance of perovskite-based devices.

AB - Composited with electronic functional materials is an effective way to improve the performance and stability of organic-inorganic hybrid halide perovskite photodetectors. Herein, a planar photoconductive photodetector based on a CH3NH3PbI3 (MAPbI3)/IDT-BT/MoO3 structure was designed and fabricated. Indacenodithiophene-co-benzothiadiazole (IDT-BT) and MoO3 layers are beneficial for photogenerated holes transmission and improve the dissociation efficiency of photogenerated electron-hole pairs. On the other hand, MoO3 as an electron-blocking layer can suppress the dark current. The device displays a fast response time of less than 7 ms, a high responsivity of 11.6 AW-1, and an ultrahigh detectivity up to $5.2\times10$ 13 Jones. In addition, the IDT-BT layer can isolate MAPbI3 from oxygen and water, thus increasing the stable lifetime of devices to more than 20 days. These parameters are several times higher than pristine MAPbI3 photoconductive photodetectors. These results can offer a feasible and effective method for integrating the composite material to improve the performance of perovskite-based devices.

KW - Dark current

KW - detectivity

KW - holes transmission

KW - interface engineering

KW - perovskite photodetectors

UR - https://www.scopus.com/pages/publications/85118988833

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DO - 10.1109/TED.2021.3123560

M3 - 文章

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JO - IEEE Transactions on Electron Devices

JF - IEEE Transactions on Electron Devices

IS - 12

ER -

High-Detectivity and Stable Planar MAPbI/IDT-BT Photodetectors with Assisted MoO Interlayer

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