IF 22.3 1区材料科学

Infomat Pub Date : 2026-03-30 Epub Date: 2025-12-08 DOI: 10.1002/inf2.70104

Gebhard J. Matt, Vitalii Bartosh, Joshua R. S. Lilly, Vincent J.-Y. Lim, Lorenzo J. A. Ferraresi, Daria Proniakova, Yuliia Kominko, Gytis Juška, Laura M. Herz, Sergii Yakunin, Maksym V. Kovalenko

{"title":"Perovskite-based time-domain signal-balancing LiDAR sensor with centimeter depth resolution","authors":"Gebhard J. Matt, Vitalii Bartosh, Joshua R. S. Lilly, Vincent J.-Y. Lim, Lorenzo J. A. Ferraresi, Daria Proniakova, Yuliia Kominko, Gytis Juška, Laura M. Herz, Sergii Yakunin, Maksym V. Kovalenko","doi":"10.1002/inf2.70104","DOIUrl":"10.1002/inf2.70104","url":null,"abstract":"A novel class of semiconducting compounds, metal-halide perovskites (MHPs), has emerged as a versatile platform for advanced optoelectronic device architectures, offering a unique combination of exceptional physical properties and facile processing. In this study, we present a monolithic high-speed photodetector capable of directly sensing the time delay between two light pulses with a temporal resolution of at least 170 ps, corresponding to a light propagation distance of ~5 cm—making it well suited for Light Detection and Ranging (LiDAR) applications. This outstanding time resolution is achieved through a signal-balancing detection scheme that effectively overcomes the limitations of conventional photodetectors, whose response speed is inherently limited by charge-carrier lifetime and transit time. The device exhibits an exceptionally low noise spectral density, comparable to that of state-of-the-art silicon photodiodes. The fully symmetric device stack comprises a crystalline CsPbBr3 absorber layer tens of microns thick, fabricated via a confined melt process. Comprehensive electro-optical characterization reveals charge-carrier lifetimes and mobilities on both microscopic and macroscopic length scales, using transient photoluminescence, time-resolved photocurrent, time of flight, and terahertz pump–probe spectroscopy. The CsPbBr3 layer exhibits charge-carrier lifetimes exceeding 100 ns, a microscopic electron–hole mobility of 15 ± 1 cm2 V−1 s−1, and a macroscopic non-dispersive hole mobility of 8.5 cm2 V−1 s−1.\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>","PeriodicalId":48538,"journal":{"name":"Infomat","volume":"8 4","pages":""},"PeriodicalIF":22.3,"publicationDate":"2026-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/inf2.70104","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147683441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}