Two-Dimensional Antimony-Based Perovskite-Inspired Materials for High-Performance Self-Powered Photodetectors

Jianjun Mei; Maning Liu; Paola Vivo; Vincenzo Pecunia

doi:10.1002/adfm.202106295

Two-Dimensional Antimony-Based Perovskite-Inspired Materials for High-Performance Self-Powered Photodetectors

Jianjun Mei
, Maning Liu
, Paola Vivo
, Vincenzo Pecunia^*

^*Corresponding author for this work

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

79 Citations (Scopus)

16 Downloads (Pure)

Abstract

The ongoing Internet of Things revolution has led to strong demand for low-cost, ubiquitous light sensing based on easy-to-fabricate, self-powered photodetectors. While solution-processable lead-halide perovskites have raised significant hopes in this regard, toxicity concerns have prompted the search for safer, lead-free perovskite-inspired materials (PIMs) with similar optoelectronic potential. Antimony- and bismuth-based PIMs are found particularly promising; however, their self-powered photodetector performance to date has lagged behind the lead-based counterparts. Aiming to realize the full potential of antimony-based PIMs, this study examines, for the first time, the impact of their structural dimensionality on their self-powered photodetection capabilities, with a focus on 2D Cs₃Sb₂I₉₋_xCl_x and Rb₃Sb₂I₉ and 0D Cs₃Sb₂I₉. The 2D absorbers deliver cutting-edge self-powered photodetector performance, with a more-than-tenfold increase in external quantum efficiency (up to 55%), speed of response (>5 kHz), and linear dynamic range (>four orders of magnitude) compared to prior self-powered A₃M₂X₉ implementations (A⁺: monovalent cation; M³⁺: Sb³⁺/Bi³⁺; X⁻: halide anion). Detailed characterization reveals that such a performance boost originates from the superior carrier lifetimes and reduced exciton self-trapping enabled by the 2D structure. By delivering cutting-edge performance and mechanistic insight, this study represents an important step in lead-free perovskite-inspired optoelectronics toward self-powered, ubiquitous light sensing.

Original language	English
Article number	2106295
Journal	Advanced Functional Materials
Volume	31
Issue number	50
DOIs	https://doi.org/10.1002/adfm.202106295
Publication status	Published - 2021
Publication type	A1 Journal article-refereed

Funding

J.M. and V.P. contributed equally to this work. J.M. is thankful to Yueheng Peng, Fengzhu Li, and Kai Xia for training. V.P. is thankful to Dr. Nicola Gasparini for helpful discussions. V.P. acknowledges financial support from the National Natural Science Foundation of China (61805166), the Collaborative Innovation Center of Suzhou Nano Science and Technology, the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), the 111 Project, and the Joint International Research Laboratory of Carbon‐Based Functional Materials and Devices. M.L. thanks the Finnish Cultural Foundation (00210670) for funding. P.V. acknowledges Jane and Aatos Erkko foundation (project ASPIRE) for financial support and the Academy of Finland Flagship Programme, Photonics Research and Innovation (PREIN), Decision No. 320165.

Keywords

antimony-based perovskite derivatives
lead-free perovskite-inspired materials
linear dynamic range
self-powered photodetectors
structural dimensionality

Publication forum classification

Publication forum level 3

ASJC Scopus subject areas

General Chemistry
General Materials Science
Condensed Matter Physics

Access to Document

10.1002/adfm.202106295Licence: CC BY

Two-Dimensional Antimony-Based
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Final published version, 5.45 MBLicence: CC BY

http://urn.fi/URN:NBN:fi:tuni-202109237237Licence: CC BY

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Cite this

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title = "Two-Dimensional Antimony-Based Perovskite-Inspired Materials for High-Performance Self-Powered Photodetectors",

abstract = "The ongoing Internet of Things revolution has led to strong demand for low-cost, ubiquitous light sensing based on easy-to-fabricate, self-powered photodetectors. While solution-processable lead-halide perovskites have raised significant hopes in this regard, toxicity concerns have prompted the search for safer, lead-free perovskite-inspired materials (PIMs) with similar optoelectronic potential. Antimony- and bismuth-based PIMs are found particularly promising; however, their self-powered photodetector performance to date has lagged behind the lead-based counterparts. Aiming to realize the full potential of antimony-based PIMs, this study examines, for the first time, the impact of their structural dimensionality on their self-powered photodetection capabilities, with a focus on 2D Cs3Sb2I9−xClx and Rb3Sb2I9 and 0D Cs3Sb2I9. The 2D absorbers deliver cutting-edge self-powered photodetector performance, with a more-than-tenfold increase in external quantum efficiency (up to 55\%), speed of response (>5 kHz), and linear dynamic range (>four orders of magnitude) compared to prior self-powered A3M2X9 implementations (A+: monovalent cation; M3+: Sb3+/Bi3+; X−: halide anion). Detailed characterization reveals that such a performance boost originates from the superior carrier lifetimes and reduced exciton self-trapping enabled by the 2D structure. By delivering cutting-edge performance and mechanistic insight, this study represents an important step in lead-free perovskite-inspired optoelectronics toward self-powered, ubiquitous light sensing.",

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note = "Funding Information: J.M. and V.P. contributed equally to this work. J.M. is thankful to Yueheng Peng, Fengzhu Li, and Kai Xia for training. V.P. is thankful to Dr. Nicola Gasparini for helpful discussions. V.P. acknowledges financial support from the National Natural Science Foundation of China (61805166), the Collaborative Innovation Center of Suzhou Nano Science and Technology, the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), the 111 Project, and the Joint International Research Laboratory of Carbon‐Based Functional Materials and Devices. M.L. thanks the Finnish Cultural Foundation (00210670) for funding. P.V. acknowledges Jane and Aatos Erkko foundation (project ASPIRE) for financial support and the Academy of Finland Flagship Programme, Photonics Research and Innovation (PREIN), Decision No. 320165. Publisher Copyright: {\textcopyright} 2021 The Authors. Advanced Functional Materials published by Wiley-VCH GmbH",

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AU - Vivo, Paola

AU - Pecunia, Vincenzo

N1 - Funding Information: J.M. and V.P. contributed equally to this work. J.M. is thankful to Yueheng Peng, Fengzhu Li, and Kai Xia for training. V.P. is thankful to Dr. Nicola Gasparini for helpful discussions. V.P. acknowledges financial support from the National Natural Science Foundation of China (61805166), the Collaborative Innovation Center of Suzhou Nano Science and Technology, the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD), the 111 Project, and the Joint International Research Laboratory of Carbon‐Based Functional Materials and Devices. M.L. thanks the Finnish Cultural Foundation (00210670) for funding. P.V. acknowledges Jane and Aatos Erkko foundation (project ASPIRE) for financial support and the Academy of Finland Flagship Programme, Photonics Research and Innovation (PREIN), Decision No. 320165. Publisher Copyright: © 2021 The Authors. Advanced Functional Materials published by Wiley-VCH GmbH

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N2 - The ongoing Internet of Things revolution has led to strong demand for low-cost, ubiquitous light sensing based on easy-to-fabricate, self-powered photodetectors. While solution-processable lead-halide perovskites have raised significant hopes in this regard, toxicity concerns have prompted the search for safer, lead-free perovskite-inspired materials (PIMs) with similar optoelectronic potential. Antimony- and bismuth-based PIMs are found particularly promising; however, their self-powered photodetector performance to date has lagged behind the lead-based counterparts. Aiming to realize the full potential of antimony-based PIMs, this study examines, for the first time, the impact of their structural dimensionality on their self-powered photodetection capabilities, with a focus on 2D Cs3Sb2I9−xClx and Rb3Sb2I9 and 0D Cs3Sb2I9. The 2D absorbers deliver cutting-edge self-powered photodetector performance, with a more-than-tenfold increase in external quantum efficiency (up to 55%), speed of response (>5 kHz), and linear dynamic range (>four orders of magnitude) compared to prior self-powered A3M2X9 implementations (A+: monovalent cation; M3+: Sb3+/Bi3+; X−: halide anion). Detailed characterization reveals that such a performance boost originates from the superior carrier lifetimes and reduced exciton self-trapping enabled by the 2D structure. By delivering cutting-edge performance and mechanistic insight, this study represents an important step in lead-free perovskite-inspired optoelectronics toward self-powered, ubiquitous light sensing.

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Two-Dimensional Antimony-Based Perovskite-Inspired Materials for High-Performance Self-Powered Photodetectors

Abstract

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Keywords

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