摘要
钙钛矿材料凭借可调带隙、高光吸收系数和低激子结合能等优势,在半导体光伏和光电探测领域大放异彩。普适性的铅基钙钛矿吸收范围通常集中在UV到Vis区域,而窄带隙的纯锡基或者锡铅混合钙钛矿其吸收光谱仍局限于~1060 nm以内的近红外范围,受限于未来复杂场景的应用及探测成像。通过将钙钛矿与窄带隙半导体结合构建“钙钛矿/半导体”复合异质结可以进一步扩展光谱范围并提高吸收效率。本综述总结了钙钛矿基宽谱带光电探测器在探测性能优化、单体材料优异性能、复合材料优选工程等方面的进展,并探讨了宽谱探测器在光谱响应、像素集成、柔性器件开发和稳定性等方面的进展和应用前景。本综述将有助于推动钙钛矿基宽谱带光电探测研究及其未来成像应用。
Perovskite materials,with their adjustable bandgaps,high light absorption coefficients,and low exciton binding energies,have shone brightly in the fields of semiconductor photovoltaics and photoelectric detection.The absorption range of universal lead-based perovskites is usually concentrated in the UV to Vis region,while the absorption spectra of narrow-bandgap pure tin-based or tin-lead mixed perovskites are still limited to the NIR range within~1060 nm,constrained by the application and detection imaging in future complex scenarios.Combining perovskites with narrow-bandgap semiconductors to construct“perovskite/semiconductor”composite heterostructures can further expand the spectral range and enhance absorption efficiency.This review summarizes the progress in optimizing detection performance,the exceptional properties of monomaterials,and the preferred engineering of composite materials for perovskite-based broadband photodetectors.It also discusses the advancements and application prospects of broadband detectors in terms of spectral response,pixel integration,development of flexible devices,and stability.This review aims to promote research in perovskite-based wide-band photodetection and its future imaging applications.
作者
卢孟涵
宋宏伟
陈聪
LU Menghan;SONG Hongwei;CHEN Cong(School of Material Science and Engineering,Hebei University of Technology,Tianjin 300401,China;State Key Laboratory of Integrated Optoelectronics,College of Electronic Science and Engineering,Jilin University,Changchun 130012,China)
出处
《发光学报》
EI
CAS
CSCD
北大核心
2024年第6期876-893,共18页
Chinese Journal of Luminescence
基金
国家自然科学基金(62004058,U21A2076)。
关键词
钙钛矿
红外光电探测器
宽谱带光电探测器
量子点
异质结
perovskite
infrared photodetectors
broadband photodetectors
quantum dots
heterojunctions
