材料科学
结晶
成核
钙钛矿(结构)
单晶
晶体生长
衍射
Crystal(编程语言)
表面张力
光电子学
结晶学
光学
化学工程
热力学
化学
物理
工程类
程序设计语言
计算机科学
作者
Dong Liu,Jiang Li,Xianyuan Jiang,Xiaofeng Sun,Guodong Zhang,Ying-Bo Lü,Yong Wang,Zhongchen Wu,Zongcheng Ling
标识
DOI:10.1021/acsami.3c13614
摘要
Comprehensive understanding and precise manipulation of the crystallization process for organic-inorganic hybrid perovskite materials are crucial for advancing perovskite single-crystal optoelectronic technology. In this study, we theoretically and experimentally investigated the influence of interface tension on the synthesis of perovskite single crystals. On the basis of the understanding of the nucleation and growth mechanisms, we developed a polydimethylsiloxane-assisted temperature-gradient growth technique to prepare high-quality MAPbBr3 single crystals. Using this technique, we harvested some high-quality MAPbBr3 single crystals, with the narrowest reported full width at half-maximum (0.00806°) of X-ray diffraction rocking curve, the longest carrier lifetime of 1002 ns, and an ultralow trap-state density of 4.25 × 109 cm-3. Furthermore, the X-ray detector fabricated using our MAPbBr3 single crystal exhibited a high sensitivity of 7275 μC Gy1- cm2 and a low minimum detection limit of 0.67 μGy s-1. This paper presents a novel method to control the crystallization and growth processes of high-quality perovskite single crystals.
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