材料科学
光电探测器
铁电性
光电子学
钙钛矿(结构)
电介质
结晶学
化学
作者
Zheng Yang,Xiaoli Li,Linjie Gao,Wei Zhang,Xinzhan Wang,Haixu Liu,Shufang Wang,Caofeng Pan,Linjuan Guo
出处
期刊:Nano Energy
[Elsevier]
日期:2022-11-01
卷期号:102: 107743-107743
被引量:13
标识
DOI:10.1016/j.nanoen.2022.107743
摘要
Self-powered and flexible perovskite photodetectors are holding great promise owing to their potential for high-performance wearable and portable optoelectronic applications. The light-induced ferro-pyro-phototronic effect can boost the performances of ferroelectric materials-based photodetector systems significantly. However, the utilization of the ferro-pyro-phototronic effect in polycrystalline halide perovskites films-based flexible photodetectors is rarely mentioned. Here, a ferro-pyro-phototronic effect boosted self-powered, flexible, and ultra-stable photodetector based on 1D/3D mixed perovskite ferroelectric film/P3HT heterojunction is demonstrated. By employing Pb(SCN) 2 as lead source to partially for fabricating high-quality MAPbI 3 film and incorporating 1D ferroelectric perovskite TMIMPbI 3 , the overall optoelectronic performances were largely enhanced, with a low dark current of 7 × 10 −9 A, a responsivity of 6.6 mA/W and a detectivity of 5 × 10 9 Jones. The PDs displayed good folding endurance, and anti-humidity stability. The excellent performance is attributed to the reduced trap-density and enhanced pyro-phototronic effect induced by improved crystallinity and introduced ferroelectricity. Here, a self-powered, flexible and ultra-stable photodetector based on 1D/3D (MAPbI 3 ) perovskite ferroelectric film/P3HT heterojunction boosted by ferro-pyro-phototronic effect is demonstrated. With employing lead thiocyanate lead source for fabricating high-quality MAPbI 3 film and incorporation of 1D ferroelectric perovskite TMIMPbI 3 , the overall optoelectronic performances were largely enhanced, with a low dark current of 7 × 10 −9 A, a responsivity of 6 mA/W. The PDs displayed favorable folding endurance and anti-humidity stability. The excellent performance is attributed to the reduced trap-density and enhanced pyro-phototronic effect induced by better crystallinity and ferroelectricity. • A simple and effective method to prepare highly crystalized 1D/3D ferroelectric perovskite film was demonstrated. • The ferro-pyro-phototronic effect has been utilized to boost the photocurrent of self-powered flexible photodetector. • The PDs display favorable folding endurance and anti-humidity stability.
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