A high Z CsPbBr₃ halide perovskite with large charge carrier diffusion length was used for radiation detection applications. The high sensitivity X-ray detector is expected to be used for imaging applications. The free-seeding CsPbBr₃ single crystals (SCs) were directly grown on ITO glass. We fabricated the Ag/CsPbBr₃/ITO sandwich structural X-ray detector with Schottky contact at room temperature. We investigated the X-ray detection and phase-contrast X-ray imaging of the all-inorganic halide perovskite CsPbBr₃ SCs. The devices exhibit high performances with low dark current density (∼5–27 nA/cm²) and high sensitivity (770 μC·Gy^–1·cm^–2) with an applied voltage of 8 V. An “L”-shape imaging was obtained based on the CsPbBr₃ SC X-ray detector array, which makes it a promising application for pixel X-ray imaging techniques.

中文翻译：

---

具有肖特基势垒的CsPbBr ₃单晶X射线探测器，用于X射线成像应用

具有高载流子扩散长度的高Z CsPbBr ₃卤化物钙钛矿用于辐射检测应用。高灵敏度X射线探测器有望用于成像应用。自由晶种的CsPbBr ₃单晶（SCs）直接在ITO玻璃上生长。我们在室温下制造了具有肖特基接触的Ag / CsPbBr ₃ / ITO夹心结构X射线探测器。我们研究了全无机卤化物钙钛矿CsPbBr ₃ SC的X射线检测和相衬X射线成像。该器件具有高性能，低暗电流密度（〜5–27 nA / cm ²）和高灵敏度（770μC ·Gy ^–1 ·cm ^–2），施加电压为8V。基于CsPbBr ₃ SC X射线检测器阵列获得了“ L”形成像，这使其成为像素X射线成像技术的有希望的应用。