Fabrication and performance of CsPbBr3 single crystal for x-ray photon-counting imaging

IF 3.6 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2025-07-02 DOI:10.1063/5.0277876

Ran Chen, Katsuyuki Takagi, Kohei Toyoda, Junichi Nishizawa, Shimao Wang, Xiao Zhao, Peng He, Hiroki Kase, Gang Meng, Toru Aoki

引用次数: 0

Abstract

Semiconductor x-ray photon-counting imaging sensors are the core components of photon-counting computed tomography (PCCT) equipment, which requires a semiconductor crystal with a high atomic number, a high resistivity, and a high mobility lifetime product. In this investigation, CsPbBr3 single crystal (SC), one of the most promising inorganic perovskite radiation detection materials, based x-ray photon-counting imaging sensor has been realized by integrating a CsPbBr3 SC onto a photon-counting readout integrated circuit board. The obtained imaging sensor possesses 40 pixels × 40 pixels with a pitch of 80 μm, exhibiting excellent x-ray imaging performance and obtaining a clear x-ray image of a Japanese letter, イ, made of lead. This investigation developed a CsPbBr3 SC-based x-ray photon-counting imaging sensor, demonstrating the application potential of inorganic perovskite CsPbBr3 SC in x-ray photon-counting technology-based equipment, such as PCCT.

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用于x射线光子计数成像的CsPbBr3单晶的制备与性能

半导体x射线光子计数成像传感器是光子计数计算机断层扫描（PCCT）设备的核心部件，它需要具有高原子序数、高电阻率和高迁移率寿命产品的半导体晶体。本研究将CsPbBr3单晶（SC）集成到光子计数读出集成电路板上，实现了基于CsPbBr3单晶（SC）的x射线光子计数成像传感器，CsPbBr3单晶是最有前途的无机钙钛矿辐射探测材料之一。所获得的成像传感器具有40 × 40像素，间距为80 μm，具有优异的x射线成像性能，并获得了由铅制成的日文字母“”的清晰x射线图像。本研究开发了基于CsPbBr3 SC的x射线光子计数成像传感器，展示了无机钙钛矿CsPbBr3 SC在基于x射线光子计数技术的设备（如PCCT）中的应用潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Physics Letters 物理-物理：应用

CiteScore

6.40

自引率

10.00%

发文量

1821

审稿时长

1.6 months

期刊介绍： Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.