{"title":"非制冷型极光技术的进展:通过 CuFeSe2$left(\\text{CuFeSe}\\right)_{2}$ 纳米晶体胶体薄膜实现短波红外探测","authors":"Ashutosh Vishwakarma, Chinmay Shailendra Gharpure, Anumol Sugathan, Anshu Pandey, Sushobhan Avasthi","doi":"10.1002/pssr.202300440","DOIUrl":null,"url":null,"abstract":"Microbolometers have emerged as a cost‐effective alternative to cooled infrared photon detectors, albeit with certain trade‐offs in terms of responsivity (), detectivity (), and response time (). The research in this field has been driven by the potential applications in night vision devices, military surveillance, and autonomous vehicles, leading to a growing interest in exploring new materials to bridge the performance gap between cooled photon detectors and uncooled bolometers. This study focuses on the optoelectronic and bolometric characteristics of nanocrystals (NCs) in a colloidal solution. These NCs exhibit a significant change in resistivity (<jats:italic>ρ</jats:italic>) when subjected to temperature variations ranging from 170K to 400K. Specifically, the Temperature Coefficient of Resistance (TCR), <jats:italic>α</jats:italic>, is 1.9% per Kelvin for a room temperature resistivity of 505 <jats:italic>Ω</jats:italic> cm. Furthermore, the responsivity of NCs is reported to be 0.101 A/W, and the Hall mobility of the colloidal solution is determined as . Finally, a comprehensive comparison is conducted between the performance metrics of established bolometer materials, such as VOx and a‐Si, and those of colloidal NCs. Based on the results, colloidal NCs are a promising option for future bolometer technology.This article is protected by copyright. All rights reserved.","PeriodicalId":54619,"journal":{"name":"Physica Status Solidi-Rapid Research Letters","volume":null,"pages":null},"PeriodicalIF":2.5000,"publicationDate":"2024-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"ADVANCEMENTS IN UNCOOLED BOLOMETER TECHNOLOGY: SHORT‐WAVE INFRARED DETECTION VIA CuFeSe2$\\\\left(\\\\text{CuFeSe}\\\\right)_{2}$ NANOCRYSTAL COLLOIDAL THIN‐FILMS\",\"authors\":\"Ashutosh Vishwakarma, Chinmay Shailendra Gharpure, Anumol Sugathan, Anshu Pandey, Sushobhan Avasthi\",\"doi\":\"10.1002/pssr.202300440\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Microbolometers have emerged as a cost‐effective alternative to cooled infrared photon detectors, albeit with certain trade‐offs in terms of responsivity (), detectivity (), and response time (). The research in this field has been driven by the potential applications in night vision devices, military surveillance, and autonomous vehicles, leading to a growing interest in exploring new materials to bridge the performance gap between cooled photon detectors and uncooled bolometers. This study focuses on the optoelectronic and bolometric characteristics of nanocrystals (NCs) in a colloidal solution. These NCs exhibit a significant change in resistivity (<jats:italic>ρ</jats:italic>) when subjected to temperature variations ranging from 170K to 400K. Specifically, the Temperature Coefficient of Resistance (TCR), <jats:italic>α</jats:italic>, is 1.9% per Kelvin for a room temperature resistivity of 505 <jats:italic>Ω</jats:italic> cm. Furthermore, the responsivity of NCs is reported to be 0.101 A/W, and the Hall mobility of the colloidal solution is determined as . Finally, a comprehensive comparison is conducted between the performance metrics of established bolometer materials, such as VOx and a‐Si, and those of colloidal NCs. Based on the results, colloidal NCs are a promising option for future bolometer technology.This article is protected by copyright. All rights reserved.\",\"PeriodicalId\":54619,\"journal\":{\"name\":\"Physica Status Solidi-Rapid Research Letters\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.5000,\"publicationDate\":\"2024-02-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Physica Status Solidi-Rapid Research Letters\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://doi.org/10.1002/pssr.202300440\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physica Status Solidi-Rapid Research Letters","FirstCategoryId":"101","ListUrlMain":"https://doi.org/10.1002/pssr.202300440","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
ADVANCEMENTS IN UNCOOLED BOLOMETER TECHNOLOGY: SHORT‐WAVE INFRARED DETECTION VIA CuFeSe2$\left(\text{CuFeSe}\right)_{2}$ NANOCRYSTAL COLLOIDAL THIN‐FILMS
Microbolometers have emerged as a cost‐effective alternative to cooled infrared photon detectors, albeit with certain trade‐offs in terms of responsivity (), detectivity (), and response time (). The research in this field has been driven by the potential applications in night vision devices, military surveillance, and autonomous vehicles, leading to a growing interest in exploring new materials to bridge the performance gap between cooled photon detectors and uncooled bolometers. This study focuses on the optoelectronic and bolometric characteristics of nanocrystals (NCs) in a colloidal solution. These NCs exhibit a significant change in resistivity (ρ) when subjected to temperature variations ranging from 170K to 400K. Specifically, the Temperature Coefficient of Resistance (TCR), α, is 1.9% per Kelvin for a room temperature resistivity of 505 Ω cm. Furthermore, the responsivity of NCs is reported to be 0.101 A/W, and the Hall mobility of the colloidal solution is determined as . Finally, a comprehensive comparison is conducted between the performance metrics of established bolometer materials, such as VOx and a‐Si, and those of colloidal NCs. Based on the results, colloidal NCs are a promising option for future bolometer technology.This article is protected by copyright. All rights reserved.
期刊介绍:
Physica status solidi (RRL) - Rapid Research Letters was designed to offer extremely fast publication times and is currently one of the fastest double peer-reviewed publication media in solid state and materials physics. Average times are 11 days from submission to first editorial decision, and 12 days from acceptance to online publication. It communicates important findings with a high degree of novelty and need for express publication, as well as other results of immediate interest to the solid-state physics and materials science community. Published Letters require approval by at least two independent reviewers.
The journal covers topics such as preparation, structure and simulation of advanced materials, theoretical and experimental investigations of the atomistic and electronic structure, optical, magnetic, superconducting, ferroelectric and other properties of solids, nanostructures and low-dimensional systems as well as device applications. Rapid Research Letters particularly invites papers from interdisciplinary and emerging new areas of research.