Two-Dimensional Antimony-Based Perovskite-Inspired Materials for High-Performance Self-Powered Photodetectors
Mei, Jianjun ; Liu, Maning LU
; Vivo, Paola
and Pecunia, Vincenzo
(2021)
In Advanced Functional Materials
31(50).
- 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... (More)
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.
(Less)
- author
- Mei, Jianjun
; Liu, Maning
LU
; Vivo, Paola
and Pecunia, Vincenzo
- publishing date
- 2021-12-09
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- antimony-based perovskite derivatives, lead-free perovskite-inspired materials, linear dynamic range, self-powered photodetectors, structural dimensionality
- in
- Advanced Functional Materials
- volume
- 31
- issue
- 50
- article number
- 2106295
- publisher
- Wiley-Blackwell
- external identifiers
-
- scopus:85112300431
- ISSN
- 1616-301X
- DOI
- 10.1002/adfm.202106295
- language
- English
- LU publication?
- no
- id
- e2f249a4-2224-486b-a2b7-c8a07fb233ee
- date added to LUP
- 2023-08-24 12:26:25
- date last changed
- 2023-08-25 14:25:10
@article{e2f249a4-2224-486b-a2b7-c8a07fb233ee,
abstract = {{<p>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 Cs<sub>3</sub>Sb<sub>2</sub>I<sub>9−</sub><sub>x</sub>Cl<sub>x</sub> and Rb<sub>3</sub>Sb<sub>2</sub>I<sub>9</sub> and 0D Cs<sub>3</sub>Sb<sub>2</sub>I<sub>9</sub>. 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 A<sub>3</sub>M<sub>2</sub>X<sub>9</sub> implementations (A<sup>+</sup>: monovalent cation; M<sup>3+</sup>: Sb<sup>3+</sup>/Bi<sup>3+</sup>; X<sup>−</sup>: 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.</p>}},
author = {{Mei, Jianjun and Liu, Maning and Vivo, Paola and Pecunia, Vincenzo}},
issn = {{1616-301X}},
keywords = {{antimony-based perovskite derivatives; lead-free perovskite-inspired materials; linear dynamic range; self-powered photodetectors; structural dimensionality}},
language = {{eng}},
month = {{12}},
number = {{50}},
publisher = {{Wiley-Blackwell}},
series = {{Advanced Functional Materials}},
title = {{Two-Dimensional Antimony-Based Perovskite-Inspired Materials for High-Performance Self-Powered Photodetectors}},
url = {{http://dx.doi.org/10.1002/adfm.202106295}},
doi = {{10.1002/adfm.202106295}},
volume = {{31}},
year = {{2021}},
}