Bright and stable near-infrared lead-free perovskite light-emitting diodes

Long-wavelength near-infrared light-emitting diodes (NIR LEDs) with peak emission wavelengths beyond 900 nm are of critical importance for various applications including night vision, biomedical imaging, sensing and optical communications. However, the low radiance and poor operational stability of...

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Main Authors: Yuan, Fanglong, Folpini, Giulia, Liu, Tianjun, Singh, Utkarsh, Treglia, Antonella, Lim, Melvin Jia Wei, Klarbring, Johan, Simak, Sergei I., Abrikosov, Igor A., Sum, Tze Chien, Petrozza, Annamaria, Gao, Feng
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2024
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Online Access:https://hdl.handle.net/10356/178718
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Institution: Nanyang Technological University
Language: English
id sg-ntu-dr.10356-178718
record_format dspace
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic Physics
Infrared light emitting diodes
Lead-free perovskites
spellingShingle Physics
Infrared light emitting diodes
Lead-free perovskites
Yuan, Fanglong
Folpini, Giulia
Liu, Tianjun
Singh, Utkarsh
Treglia, Antonella
Lim, Melvin Jia Wei
Klarbring, Johan
Simak, Sergei I.
Abrikosov, Igor A.
Sum, Tze Chien
Petrozza, Annamaria
Gao, Feng
Bright and stable near-infrared lead-free perovskite light-emitting diodes
description Long-wavelength near-infrared light-emitting diodes (NIR LEDs) with peak emission wavelengths beyond 900 nm are of critical importance for various applications including night vision, biomedical imaging, sensing and optical communications. However, the low radiance and poor operational stability of state-of-the-art long-wavelength NIR LEDs based on soft materials remain the most critical factors limiting their practical applications. Here we develop NIR LEDs emitting beyond 900 nm with improved performance through the rational manipulation of p doping in all-inorganic tin perovskites (CsSnI3) by retarding and controlling the crystallization process of perovskite precursors in tin-rich conditions. The resulting NIR LEDs exhibit a peak emission wavelength at 948 nm, high radiance of 226 W sr−1 m−2 and long operational half-lifetime of 39.5 h at a high constant current density of 100 mA cm−2. Our demonstration of efficient and stable NIR LEDs operating at high current densities may also open up new opportunities towards electrically pumped lasers.
author2 School of Physical and Mathematical Sciences
author_facet School of Physical and Mathematical Sciences
Yuan, Fanglong
Folpini, Giulia
Liu, Tianjun
Singh, Utkarsh
Treglia, Antonella
Lim, Melvin Jia Wei
Klarbring, Johan
Simak, Sergei I.
Abrikosov, Igor A.
Sum, Tze Chien
Petrozza, Annamaria
Gao, Feng
format Article
author Yuan, Fanglong
Folpini, Giulia
Liu, Tianjun
Singh, Utkarsh
Treglia, Antonella
Lim, Melvin Jia Wei
Klarbring, Johan
Simak, Sergei I.
Abrikosov, Igor A.
Sum, Tze Chien
Petrozza, Annamaria
Gao, Feng
author_sort Yuan, Fanglong
title Bright and stable near-infrared lead-free perovskite light-emitting diodes
title_short Bright and stable near-infrared lead-free perovskite light-emitting diodes
title_full Bright and stable near-infrared lead-free perovskite light-emitting diodes
title_fullStr Bright and stable near-infrared lead-free perovskite light-emitting diodes
title_full_unstemmed Bright and stable near-infrared lead-free perovskite light-emitting diodes
title_sort bright and stable near-infrared lead-free perovskite light-emitting diodes
publishDate 2024
url https://hdl.handle.net/10356/178718
_version_ 1806059871390400512
spelling sg-ntu-dr.10356-1787182024-07-08T15:34:44Z Bright and stable near-infrared lead-free perovskite light-emitting diodes Yuan, Fanglong Folpini, Giulia Liu, Tianjun Singh, Utkarsh Treglia, Antonella Lim, Melvin Jia Wei Klarbring, Johan Simak, Sergei I. Abrikosov, Igor A. Sum, Tze Chien Petrozza, Annamaria Gao, Feng School of Physical and Mathematical Sciences Physics Infrared light emitting diodes Lead-free perovskites Long-wavelength near-infrared light-emitting diodes (NIR LEDs) with peak emission wavelengths beyond 900 nm are of critical importance for various applications including night vision, biomedical imaging, sensing and optical communications. However, the low radiance and poor operational stability of state-of-the-art long-wavelength NIR LEDs based on soft materials remain the most critical factors limiting their practical applications. Here we develop NIR LEDs emitting beyond 900 nm with improved performance through the rational manipulation of p doping in all-inorganic tin perovskites (CsSnI3) by retarding and controlling the crystallization process of perovskite precursors in tin-rich conditions. The resulting NIR LEDs exhibit a peak emission wavelength at 948 nm, high radiance of 226 W sr−1 m−2 and long operational half-lifetime of 39.5 h at a high constant current density of 100 mA cm−2. Our demonstration of efficient and stable NIR LEDs operating at high current densities may also open up new opportunities towards electrically pumped lasers. Ministry of Education (MOE) National Research Foundation (NRF) Published version F.Y. acknowledges financial support from the National Key Research and Development Program of China (2023YFB3611800), National Natural Science Foundation of China (22302012), National Science Fund for Excellent Young Scholars (Overseas) and Special Funds for Introducing Talents from Beijing Normal University (312200502508). F.G. acknowledges support from Knut and Alice Wallenberg Foundation (Dnr. KAW 2019.0082), the European Research Council Consolidator Grant (LEAP, 101045098), the Swedish Research Council Vetenskapsrådet (grant 2020-03564) and the Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linköping University (faculty grant SFO-Mat-LiU no. 2009-00971). I.A.A. is a Wallenberg Academy Scholar (grant no. KAW-2018.0194). S.I.S. acknowledges support from the Swedish Research Council (VR) (project no. 2019-05551) and the ERC (synergy grant FASTCORR project 854843). T.C.S. and J.W.M.L. acknowledge support from the Singapore Ministry of Education under its MOE Tier 2 grant (MOE-T2EP50120-0004) and the National Research Foundation (NRF) Singapore under its NRF Investigatorship (NRF-NRFI2018-04). A.P., G.F. and A.T. acknowledge funding from the European Union’s Horizon 2020 research and innovation programme through the ERC project SOPHY under grant agreement no. 771528, the MSCA-ITN SMART-X under grant agreement no. 860553 and the Marie Skłodowska-Curie grant agreement no. 956270. The computations were enabled by resources provided by the National Academic Infrastructure for Supercomputing in Sweden (NAISS) and the Swedish National Infrastructure for Computing (SNIC) at the National Supercomputer Center (NSC) and Center for High Performance Computing (PDC), partially funded by the Swedish Research Council through grant agreement nos. 2022-06725 and 2018-05973. Open access funding provided by Linköping University. 2024-07-03T04:18:19Z 2024-07-03T04:18:19Z 2024 Journal Article Yuan, F., Folpini, G., Liu, T., Singh, U., Treglia, A., Lim, M. J. W., Klarbring, J., Simak, S. I., Abrikosov, I. A., Sum, T. C., Petrozza, A. & Gao, F. (2024). Bright and stable near-infrared lead-free perovskite light-emitting diodes. Nature Photonics, 18(2), 170-176. https://dx.doi.org/10.1038/s41566-023-01351-5 1749-4885 https://hdl.handle.net/10356/178718 10.1038/s41566-023-01351-5 2-s2.0-85181526265 2 18 170 176 en MOE-T2EP50120-0004 NRF-NRFI2018-04 Nature Photonics © 2024 The Author(s). Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons. org/licenses/by/4.0/. application/pdf