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

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

doi:10.1007/s40820-025-01776-3

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

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

^*Corresponding author for this work

Department of Flexible and Printable Electronics

Research output: Contribution to journal › Journal article › peer-review

9 Scopus citations

Abstract

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.

Original language	English
Article number	270
Journal	Nano-Micro Letters
Volume	17
Issue number	1
DOIs	https://doi.org/10.1007/s40820-025-01776-3
State	Published - 2025.12

Keywords

Co-evaporation
Electroluminescence
Near-infrared emission
Phase regulation
Vacuum-deposited perovskite

Quacquarelli Symonds(QS) Subject Topics

Materials Science
Engineering - Electrical & Electronic
Engineering - Petroleum

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10.1007/s40820-025-01776-3

Cite this

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title = "Efficient Thermally Evaporated Near-Infrared Perovskite Light-Emitting Diodes via Phase Regulation",

abstract = "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.",

keywords = "Co-evaporation, Electroluminescence, Near-infrared emission, Phase regulation, Vacuum-deposited perovskite",

author = "Siwei He and Lanxin Qin and Zhengzheng Liu and Kang, \{Jae Wook\} and Jiajun Luo and Juan Du",

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doi = "10.1007/s40820-025-01776-3",

language = "English",

volume = "17",

journal = "Nano-Micro Letters",

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T1 - Efficient Thermally Evaporated Near-Infrared Perovskite Light-Emitting Diodes via Phase Regulation

AU - He, Siwei

AU - Qin, Lanxin

AU - Liu, Zhengzheng

AU - Kang, Jae Wook

AU - Luo, Jiajun

AU - Du, Juan

N1 - Publisher Copyright: © The Author(s) 2025.

PY - 2025/12

Y1 - 2025/12

N2 - 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.

AB - 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.

KW - Co-evaporation

KW - Electroluminescence

KW - Near-infrared emission

KW - Phase regulation

KW - Vacuum-deposited perovskite

UR - https://www.scopus.com/pages/publications/105005655947

U2 - 10.1007/s40820-025-01776-3

DO - 10.1007/s40820-025-01776-3

M3 - Journal article

AN - SCOPUS:105005655947

SN - 2311-6706

VL - 17

JO - Nano-Micro Letters

JF - Nano-Micro Letters

IS - 1

M1 - 270

ER -

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

Abstract

Keywords

Quacquarelli Symonds(QS) Subject Topics

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