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Space-Confined Growth for Thickness-Controlled Cs3Bi2I9 Perovskite Single Crystal Wafers for X-Ray Detectors.
Yang, Manman; Wu, Xiaoling; Li, Anfeng; Hao, Xia; Wu, Lili; Tian, Haibo; Yang, Dingyu; Zhang, Jingquan.
Afiliación
  • Yang M; College of Materials Science and Engineering & Institute of New Energy and Low-carbon Technology, Sichuan University, Chengdu, 610064, P. R. China.
  • Wu X; College of Materials Science and Engineering & Institute of New Energy and Low-carbon Technology, Sichuan University, Chengdu, 610064, P. R. China.
  • Li A; College of Materials Science and Engineering & Institute of New Energy and Low-carbon Technology, Sichuan University, Chengdu, 610064, P. R. China.
  • Hao X; College of Materials Science and Engineering & Institute of New Energy and Low-carbon Technology, Sichuan University, Chengdu, 610064, P. R. China.
  • Wu L; Engineering Research Center of Alternative Energy Materials & Devices, Ministry of Education, Chengdu, 610065, P. R. China.
  • Tian H; College of Materials Science and Engineering & Institute of New Energy and Low-carbon Technology, Sichuan University, Chengdu, 610064, P. R. China.
  • Yang D; Engineering Research Center of Alternative Energy Materials & Devices, Ministry of Education, Chengdu, 610065, P. R. China.
  • Zhang J; College of Optoelectronic Technology, Chengdu University of Information Technology, Chengdu, 610225, P. R. China.
Small ; : e2400763, 2024 Jun 12.
Article en En | MEDLINE | ID: mdl-38864211
ABSTRACT
The Cs3Bi2I9 single crystal, as an all-inorganic non-lead perovskite, offers advantages such as stability and environmental friendliness. Its superior photoelectric properties, attributed to the absence of grain boundary influence, make it an outstanding X-ray detection material compared to polycrystals. In addition to material properties, X-ray detector performance is affected by the thickness of the absorption layer. Addressing this, a space-confined method is proposed. The temperature field is determined through finite element simulation, effectively guiding the design of the space-confined method. Through this innovative method, a series of thickness-controlled perovskite single crystal wafers (PSCWs) are successfully prepared. Corresponding X-ray detectors are then prepared, and the impact of single crystal thickness on device performance is investigated. With an increase in single crystal thickness, a rise followed by a decline in device sensitivity is observed, reaching an optimal value at 0.7 mm thickness at 40V mm-1 with a device performance of 11313.6µC Gy-1 cm-2. This space-confined method enables the direct growth of high-quality perovskite single crystals with specified thickness, eliminating the need for slicing or etching.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Small Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article Pais de publicación: Alemania
Texto completo
Añadir a Mi BVS
Imprimir
XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Small Asunto de la revista: ENGENHARIA BIOMEDICA Año: 2024 Tipo del documento: Article Pais de publicación: Alemania