{"title":"具有更高灵敏度和出色自供电功能的 PA2PbBr4/MAPbBr3 异质结 X 射线探测器","authors":"Ningfang He, Longzhen Zhang, Xin He, Jiahao Guo, Xiaochao Wu, Qingkui Li, Jilin He","doi":"10.1002/adom.202400707","DOIUrl":null,"url":null,"abstract":"<p>Heterojunctions combining 2D and 3D perovskites have caused a surge in the research on X-ray detectors. The enhanced charge transport facilitated by the built-in electric field further amplifies the potential of this material system, paving the way for highly sensitive and efficient X-ray detectors. In this study, PA<sub>2</sub>PbBr<sub>4</sub> single-crystal film with a thickness of 10 µm is successfully grown on the surface of MAPbBr<sub>3</sub> substrate via liquid phase epitaxial method, forming a 2D/3D heterojunction. This innovative detector exhibits a dramatically enhanced sensitivity of 3.81 × 10<sup>4</sup> µC Gy<sup>−1</sup> cm<sup>−2</sup> at an X-ray tube voltage of 70 keV and a bias of 50 V mm<sup>−1</sup>, along with an ultra-low detection limit of 11.84 nGy s<sup>−1</sup>, surpassing the performance of the conventional MAPbBr<sub>3</sub> X-ray detectors by a factor of four and 2 × 10<sup>3</sup> times higher than that of commercialized <i>α</i>-Se detectors. Furthermore, the 2D/3D heterojunction exhibits exceptional self-powered X-ray detection capabilities, achieving a remarkable sensitivity of 3562.26 µC Gy<sup>−1</sup> cm<sup>−2</sup> at 70 keV X-ray tube voltage. This superior performance implies reduced energy consumption, high portability, decreased ion migration, and provides inspiration for the next generation of high-performance X-ray detectors.</p>","PeriodicalId":116,"journal":{"name":"Advanced Optical Materials","volume":null,"pages":null},"PeriodicalIF":8.0000,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"PA2PbBr4/MAPbBr3 Heterojunction X-Ray Detector with Enhanced Sensitivity and Excellent Self-Powered Functionality\",\"authors\":\"Ningfang He, Longzhen Zhang, Xin He, Jiahao Guo, Xiaochao Wu, Qingkui Li, Jilin He\",\"doi\":\"10.1002/adom.202400707\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>Heterojunctions combining 2D and 3D perovskites have caused a surge in the research on X-ray detectors. The enhanced charge transport facilitated by the built-in electric field further amplifies the potential of this material system, paving the way for highly sensitive and efficient X-ray detectors. In this study, PA<sub>2</sub>PbBr<sub>4</sub> single-crystal film with a thickness of 10 µm is successfully grown on the surface of MAPbBr<sub>3</sub> substrate via liquid phase epitaxial method, forming a 2D/3D heterojunction. This innovative detector exhibits a dramatically enhanced sensitivity of 3.81 × 10<sup>4</sup> µC Gy<sup>−1</sup> cm<sup>−2</sup> at an X-ray tube voltage of 70 keV and a bias of 50 V mm<sup>−1</sup>, along with an ultra-low detection limit of 11.84 nGy s<sup>−1</sup>, surpassing the performance of the conventional MAPbBr<sub>3</sub> X-ray detectors by a factor of four and 2 × 10<sup>3</sup> times higher than that of commercialized <i>α</i>-Se detectors. Furthermore, the 2D/3D heterojunction exhibits exceptional self-powered X-ray detection capabilities, achieving a remarkable sensitivity of 3562.26 µC Gy<sup>−1</sup> cm<sup>−2</sup> at 70 keV X-ray tube voltage. This superior performance implies reduced energy consumption, high portability, decreased ion migration, and provides inspiration for the next generation of high-performance X-ray detectors.</p>\",\"PeriodicalId\":116,\"journal\":{\"name\":\"Advanced Optical Materials\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":8.0000,\"publicationDate\":\"2024-07-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Advanced Optical Materials\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://onlinelibrary.wiley.com/doi/10.1002/adom.202400707\",\"RegionNum\":2,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advanced Optical Materials","FirstCategoryId":"88","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/adom.202400707","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
摘要
结合了二维和三维包晶的异质结引起了 X 射线探测器研究的热潮。内置电场促进的电荷传输增强进一步放大了这种材料系统的潜力,为高灵敏度和高效率的 X 射线探测器铺平了道路。本研究通过液相外延法在 MAPbBr3 衬底表面成功生长出厚度为 10 µm 的 PA2PbBr4 单晶薄膜,形成了 2D/3D 异质结。在 X 射线管电压为 70 keV、偏压为 50 V mm-1 的条件下,这种创新探测器的灵敏度大幅提高,达到 3.81 × 104 µC Gy-1 cm-2,探测极限超低,为 11.84 nGy s-1,比传统 MAPbBr3 X 射线探测器的性能高出 4 倍,是商业化 α-Se 探测器的 2 × 103 倍。此外,二维/三维异质结还具有卓越的自供电 X 射线探测能力,在 70 keV X 射线管电压下的灵敏度高达 3562.26 µC Gy-1 cm-2。这一卓越性能意味着能耗降低、便携性提高、离子迁移减少,并为下一代高性能 X 射线探测器提供了灵感。
PA2PbBr4/MAPbBr3 Heterojunction X-Ray Detector with Enhanced Sensitivity and Excellent Self-Powered Functionality
Heterojunctions combining 2D and 3D perovskites have caused a surge in the research on X-ray detectors. The enhanced charge transport facilitated by the built-in electric field further amplifies the potential of this material system, paving the way for highly sensitive and efficient X-ray detectors. In this study, PA2PbBr4 single-crystal film with a thickness of 10 µm is successfully grown on the surface of MAPbBr3 substrate via liquid phase epitaxial method, forming a 2D/3D heterojunction. This innovative detector exhibits a dramatically enhanced sensitivity of 3.81 × 104 µC Gy−1 cm−2 at an X-ray tube voltage of 70 keV and a bias of 50 V mm−1, along with an ultra-low detection limit of 11.84 nGy s−1, surpassing the performance of the conventional MAPbBr3 X-ray detectors by a factor of four and 2 × 103 times higher than that of commercialized α-Se detectors. Furthermore, the 2D/3D heterojunction exhibits exceptional self-powered X-ray detection capabilities, achieving a remarkable sensitivity of 3562.26 µC Gy−1 cm−2 at 70 keV X-ray tube voltage. This superior performance implies reduced energy consumption, high portability, decreased ion migration, and provides inspiration for the next generation of high-performance X-ray detectors.
期刊介绍:
Advanced Optical Materials, part of the esteemed Advanced portfolio, is a unique materials science journal concentrating on all facets of light-matter interactions. For over a decade, it has been the preferred optical materials journal for significant discoveries in photonics, plasmonics, metamaterials, and more. The Advanced portfolio from Wiley is a collection of globally respected, high-impact journals that disseminate the best science from established and emerging researchers, aiding them in fulfilling their mission and amplifying the reach of their scientific discoveries.