Efficient Thermally Evaporated Near-Infrared Perovskite Light-Emitting Diodes via Phase Regulation

IF 26.6 1区材料科学 Q1 Engineering

Nano-Micro Letters Pub Date : 2025-05-22 DOI:10.1007/s40820-025-01776-3

Siwei He, Lanxin Qin, Zhengzheng Liu, Jae-Wook Kang, Jiajun Luo, Juan Du

引用次数: 0

Abstract

Highlights

α-phase formamidinium lead triiodide (FAPbI₃) was prepared based on triple-source co-evaporation.
A partial Cs-doping in the FAPbI₃ can help with the suppression of the non-radiative recombination, elimination of the metallic Pb, improvement of spatial confinement.
Near-infrared perovskite light-emitting diodes (NIR-PeLEDs) based on triple-source co-evaporated FACsPbI₃ thin films achieved a maximum external quantum efficiency of 10.25%, which was around 6 times higher than that of FAPbI₃-based NIR-PeLEDs.

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通过相位调节的高效热蒸发近红外钙钛矿发光二极管

基于三源共蒸发法制备了α-相甲脒型三碘化铅（FAPbI3）。在FAPbI3中部分掺杂cs有助于抑制非辐射复合，消除金属Pb，改善空间约束。基于三源共蒸发FACsPbI3薄膜的近红外钙钛矿发光二极管（NIR-PeLEDs）的最大外量子效率为10.25%，是基于fapbi3薄膜的NIR-PeLEDs的6倍左右。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.