{"title":"Perovskites and their constructed near-infrared photodetectors","authors":"Wen-Huan Gao, Cong Chen","doi":"10.1016/j.nanoen.2024.109904","DOIUrl":null,"url":null,"abstract":"<div><p>Organo-metal halide perovskites have emerged as promising candidates in photoelectric detection. Although most existing research and reviews have concentrated on perovskite-based photodetectors for high-energy X-rays and visible light applications, studies on perovskite-based near-infrared (NIR) photodetectors remain scarce. Notably, hybrid perovskites fabricated using either pure Sn or a mixed Sn/Pb can achieve the lowest bandgap of 1.21 eV. This characteristic enables exceptional NIR photoresponse within the 780–1050 nm range, offering advantages in terms of high sensitivity, minimal dark current, and an elevated detection rate. To enhance the performance and stability of narrowed bandgap Sn-based perovskite photodetectors, researchers have developed a series of strategies, including reduction additive, defect passivation, and interface regulation. Despite these advancements, Sn-based perovskites have yet to surpass the NIR response range of 1.1 eV, typical of Si-based photodetectors. In pursuit of further extending and amplifying the NIR and infrared response of perovskite, scientists have investigated integrating organic materials, crystalline silicon/germanium, III-V compounds (e.g., GaAs), and IV-VI quantum dots (e.g., PbSe, PbS QDs) with perovskite. These efforts aim to create complementary heterostructures for spectrum response for extending the NIR light response of perovskite photodetectors. This review encapsulates the current research status of perovskite NIR detectors and explores effective methods for expanding their spectral range. Furthermore, it envisions the prospective advancements in NIR photodetector technology based on perovskite materials, underscoring the potential for significant breakthroughs in this field.</p></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":null,"pages":null},"PeriodicalIF":16.8000,"publicationDate":"2024-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nano Energy","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2211285524006529","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Organo-metal halide perovskites have emerged as promising candidates in photoelectric detection. Although most existing research and reviews have concentrated on perovskite-based photodetectors for high-energy X-rays and visible light applications, studies on perovskite-based near-infrared (NIR) photodetectors remain scarce. Notably, hybrid perovskites fabricated using either pure Sn or a mixed Sn/Pb can achieve the lowest bandgap of 1.21 eV. This characteristic enables exceptional NIR photoresponse within the 780–1050 nm range, offering advantages in terms of high sensitivity, minimal dark current, and an elevated detection rate. To enhance the performance and stability of narrowed bandgap Sn-based perovskite photodetectors, researchers have developed a series of strategies, including reduction additive, defect passivation, and interface regulation. Despite these advancements, Sn-based perovskites have yet to surpass the NIR response range of 1.1 eV, typical of Si-based photodetectors. In pursuit of further extending and amplifying the NIR and infrared response of perovskite, scientists have investigated integrating organic materials, crystalline silicon/germanium, III-V compounds (e.g., GaAs), and IV-VI quantum dots (e.g., PbSe, PbS QDs) with perovskite. These efforts aim to create complementary heterostructures for spectrum response for extending the NIR light response of perovskite photodetectors. This review encapsulates the current research status of perovskite NIR detectors and explores effective methods for expanding their spectral range. Furthermore, it envisions the prospective advancements in NIR photodetector technology based on perovskite materials, underscoring the potential for significant breakthroughs in this field.
期刊介绍:
Nano Energy is a multidisciplinary, rapid-publication forum of original peer-reviewed contributions on the science and engineering of nanomaterials and nanodevices used in all forms of energy harvesting, conversion, storage, utilization and policy. Through its mixture of articles, reviews, communications, research news, and information on key developments, Nano Energy provides a comprehensive coverage of this exciting and dynamic field which joins nanoscience and nanotechnology with energy science. The journal is relevant to all those who are interested in nanomaterials solutions to the energy problem.
Nano Energy publishes original experimental and theoretical research on all aspects of energy-related research which utilizes nanomaterials and nanotechnology. Manuscripts of four types are considered: review articles which inform readers of the latest research and advances in energy science; rapid communications which feature exciting research breakthroughs in the field; full-length articles which report comprehensive research developments; and news and opinions which comment on topical issues or express views on the developments in related fields.