低温制备稳定的黑相 CsPbI3 Perovskite 柔性光电探测器，实现可穿戴式健康监测

IF 26.6 1区材料科学 Q1 Engineering

Nano-Micro Letters Pub Date : 2024-11-15 DOI:10.1007/s40820-024-01565-4

Yingjie Zhao, Yicheng Sun, Chaoxin Pei, Xing Yin, Xinyi Li, Yi Hao, Mengru Zhang, Meng Yuan, Jinglin Zhou, Yu Chen, Yanlin Song

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引用次数: 0

摘要

亮点通过立体效应和氯化物插入工程，首次证明了在 30-50 ℃ 下使用二苯基氯化膦添加剂可低温制备黑相 CsPbI3 包晶体薄膜。制备出的大面积高质量全无机包晶石薄膜具有更少的缺陷、更强的晶体取向性和出色的环境稳定性。柔性可穿戴光电探测器的性能达到了创纪录的水平，其响应率为 42.1 A W-1，探测率为 1.3 × 1014 Jones，具有高保真图像、光电血压传感器功能和高机械稳定性。

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Low-Temperature Fabrication of Stable Black-Phase CsPbI3 Perovskite Flexible Photodetectors Toward Wearable Health Monitoring

Highlights

Low-temperature fabrication of black-phase CsPbI₃ perovskite films is first demonstrated by using diphenylphosphinic chloride additive under 30–50 °C, arising from the steric effect and chloride insertion engineering.
Large-area high-quality all-inorganic perovskite films with fewer defects enhanced crystallographic orientation, and excellent environmental stability is fabricated.
The record performances are demonstrated for flexible wearable photodetectors with a responsivity of 42.1 A W⁻¹, a detectivity of 1.3 × 10¹⁴ Jones, high-fidelity image, photoplethysmography sensor functions, and high mechanical stability.

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来源期刊

Nano-Micro Letters NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

32.60

自引率

4.90%

发文量

981

审稿时长

1.1 months

期刊介绍： Nano-Micro Letters is a peer-reviewed, international, interdisciplinary, and open-access journal published under the SpringerOpen brand. Nano-Micro Letters focuses on the science, experiments, engineering, technologies, and applications of nano- or microscale structures and systems in various fields such as physics, chemistry, biology, material science, and pharmacy.It also explores the expanding interfaces between these fields. Nano-Micro Letters particularly emphasizes the bottom-up approach in the length scale from nano to micro. This approach is crucial for achieving industrial applications in nanotechnology, as it involves the assembly, modification, and control of nanostructures on a microscale.