Self-powered photodetectors based on CsPbBr3 quantum dots/organic semiconductors/SnO2 heterojunction for weak light detection基于CsPbBr3量子点/有机半导体/SnO2异质结的自供 电型探测器用于弱光检测

被引：0
作者：
Ben Yang
Pu Guo
Dandan Hao
Yan Wang
Li Li
Shilei Dai
Jia Huang
机构：
[1] Tongji University,Interdisciplinary Materials Research Center, School of Materials Science and Engineering, Frontiers Science Center for Intelligent Autonomous Systems
[2] Tongji University,Translational Research Institute of Brain and Brain
来源：
Science China Materials | 2023年 / 66卷
关键词：
perovskite quantum dots; self-powered photo-detectors; weak light detection; organic semiconductors; flexible electronic devices;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
All-inorganic lead halide perovskite quantum dots (QDs) show great potential in the development of photodetectors (PDs) due to their excellent photoelectric properties. However, the photoresponse performance of the pure perovskite QDs-based PDs is usually limited by the poor charge transport efficiency of the perovskite QDs films. Here, high-performance self-powered PDs based on perovskite QDs and organic semiconductor PQT-12 (poly(3,3‴-didodecyl quarterthiophene)) are reported. Even in a self-powered mode, the devices can still show stable photoresponse to light signals and achieve excellent photodetection performance, including a detectivity up to 5.8 × 1012 Jones, and Ilight/Idark ratio up to 105. More importantly, the devices exhibit obvious photoresponse to weak light with intensity as low as 3 nW cm−2. To the best of our knowledge, the weak light detection ability of the device is better than most reported PDs based on perovskite QDs. In addition, the devices can be fabricated into flexible PDs with almost unchanged photocurrent under different bending angles. The overall performances of our devices are excellent among the reported self-powered PDs. This method utilized here provides new guides for developing high-performance self-powered PDs based on perovskite QDs for weak light detection.
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页码：716 / 723
页数：7
相关论文
共 147 条
[1]  
Li T(2021)Low-toxicity antisolvent as a polar auxiliary agent for high-performance perovskite photodetectors J Phys Chem C 125 2850-2859
[2]  
Li Q(2019)Photonic organolead halide perovskite artificial synapse capable of accelerated learning at low power inspired by dopamine-facilitated synaptic activity Adv Funct Mater 29 1806646-73
[3]  
Tang X(2019)Combination of solution-phase process and halide exchange for all-inorganic, highly stable CsPbBr Sci China Mater 62 65-169
[4]  
Ham S(2020) perovskite nanowire photodetector InfoMat 2 139-702
[5]  
Choi S(2018)Recent developments in flexible photodetectors based on metal halide perovskite Chin Chem Lett 29 699-492
[6]  
Cho H(2021)Carrier dynamics in CsPbI Nano-Micro Lett 13 70-686
[7]  
Zeng J(2017) perovskite microcrystals synthesized in solution phase Adv Mater 29 1704062-1846
[8]  
Zhou H(2018)Single-layer ZnO hollow hemispheres enable high-performance self-powered perovskite photodetector for optical communication Nano-Micro Lett 10 57-414
[9]  
Liu R(2021)High-performance inorganic perovskite quantum dot-organic semiconductor hybrid phototransistors Chin Chem Lett 32 489-5912
[10]  
Hao D(2020)Hybrid field-effect transistors and photodetectors based on organic semiconductor and CsPbI Appl Phys Lett 116 162103-12552
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