Xiyan Pan, Tai An, Jie Sun, Hua Dong, Zhu Ma, Guangxing Liang, Yongbo Yuan, Yang Li, Wuqiang Wu, Yong Ding, Liming Ding
{"title":"Thermodynamically induced crystal restructuring to make CsPbCl3 single crystal films for weak light detection","authors":"Xiyan Pan, Tai An, Jie Sun, Hua Dong, Zhu Ma, Guangxing Liang, Yongbo Yuan, Yang Li, Wuqiang Wu, Yong Ding, Liming Ding","doi":"10.1007/s12274-024-6967-9","DOIUrl":null,"url":null,"abstract":"<div><p>CsPbCl<sub>3</sub> perovskite is considered a highly promising material for ultraviolet (UV) photodetectors due to its exceptional thermal stability and excellent short-wavelength light response. However, its high lattice energy and low polarizability result in extremely low solubility in conventional solvents, making the synthesis of CsPbCl<sub>3</sub> single crystals a significant challenge. In this study, we propose a novel thermodynamically induced crystal restructuring (TICR) process that can transform microcrystalline films (MCFs) into single crystal films (SCFs) within a short period. This method, for the first time, has successfully achieved the synthesis of centimeter-sized CsPbCl<sub>3</sub> SCFs and the mechanism has been explored in depth using <i>in-situ</i> techniques. Furthermore, we report the first instance of a CsPbCl<sub>3</sub> SCF UV photodiode, which exhibits a record-breaking on/off ratio of 3.32 × 10<sup>7</sup> and a detectivity of up to 1.15 × 10<sup>14</sup> Jones under 0 V bias. It demonstrates excellent response even under weak light conditions of 10 nW·cm<sup>−2</sup> and maintains outstanding stability with almost no performance degradation after 15 months. This study provides a novel approach for the synthesis of perovskite single crystals and holds significant potential for advancing the development of high-performance optoelectronic devices.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":713,"journal":{"name":"Nano Research","volume":null,"pages":null},"PeriodicalIF":9.5000,"publicationDate":"2024-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nano Research","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s12274-024-6967-9","RegionNum":2,"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
CsPbCl3 perovskite is considered a highly promising material for ultraviolet (UV) photodetectors due to its exceptional thermal stability and excellent short-wavelength light response. However, its high lattice energy and low polarizability result in extremely low solubility in conventional solvents, making the synthesis of CsPbCl3 single crystals a significant challenge. In this study, we propose a novel thermodynamically induced crystal restructuring (TICR) process that can transform microcrystalline films (MCFs) into single crystal films (SCFs) within a short period. This method, for the first time, has successfully achieved the synthesis of centimeter-sized CsPbCl3 SCFs and the mechanism has been explored in depth using in-situ techniques. Furthermore, we report the first instance of a CsPbCl3 SCF UV photodiode, which exhibits a record-breaking on/off ratio of 3.32 × 107 and a detectivity of up to 1.15 × 1014 Jones under 0 V bias. It demonstrates excellent response even under weak light conditions of 10 nW·cm−2 and maintains outstanding stability with almost no performance degradation after 15 months. This study provides a novel approach for the synthesis of perovskite single crystals and holds significant potential for advancing the development of high-performance optoelectronic devices.
期刊介绍:
Nano Research is a peer-reviewed, international and interdisciplinary research journal that focuses on all aspects of nanoscience and nanotechnology. It solicits submissions in various topical areas, from basic aspects of nanoscale materials to practical applications. The journal publishes articles on synthesis, characterization, and manipulation of nanomaterials; nanoscale physics, electrical transport, and quantum physics; scanning probe microscopy and spectroscopy; nanofluidics; nanosensors; nanoelectronics and molecular electronics; nano-optics, nano-optoelectronics, and nano-photonics; nanomagnetics; nanobiotechnology and nanomedicine; and nanoscale modeling and simulations. Nano Research offers readers a combination of authoritative and comprehensive Reviews, original cutting-edge research in Communication and Full Paper formats. The journal also prioritizes rapid review to ensure prompt publication.