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

IF 26.6 1区 材料科学 Q1 Engineering
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

Abstract

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.

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
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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来源期刊
Nano-Micro Letters
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.
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