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可转移的CsPbBr矿单晶膜用于可见波长光探测器

Zhaozhong Tan¹, Uijin Jung¹, Seongmin Jeong¹

¹Department of Electronic Engineering, Hanyang University, Seoul 04763, Korea.

ACS applied materials & interfaces

|August 13, 2024

概括

大规模的化 (CsPbBr3) 单晶薄膜用于光电子设备. 这些高品质的薄膜使高效的可见光电探测器具有低暗电流和高性能.

科学领域:

材料科学材料科学材料科学
光电学是指光电子产品.
晶体学晶体学是指结晶学.

背景情况:

矿材料具有有前途的光电子特性.
在制造高质量,大规模的矿膜方面存在挑战.

研究的目的:

开发一种种植大型CsPbBr3单晶薄膜 (SCF) 的方法.
将这些SCF应用于高性能光电子设备,特别是可见光探测器.

主要方法:

一步蒸汽相表 (VPE) 对于CsPbBr3SCF生长.
优化前体运输和冷却速度.
转移组装策略用于制造异构结构.

主要成果:

获得了超过2厘米2的连续CPB薄膜,厚度受控.
证实了出色的结晶性和非常低的陷密度 (2.14 × 1011).
一个自偏光探测器表现出高响应率 (1.9 A/W),检测能力 (4.65 × 1012 斯) 和开/关比 (4.63 × 103).

结论:

在生产大规模的CsPbBr3SCF时,VPE方法是有效的.
高质量的SCF可实现高效和低暗电流光探测器.
转移组装方法为矿光电子设备集成提供了一种通用方法.

关键词:

佩洛夫斯基特是一种矿.一个光电探测器.一个单晶的水晶.转移转移转移转移转移转移蒸汽阶段的表达性质 (epitaxy)

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