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Bright and stable n...
Bright and stable near-infrared lead-free perovskite light-emitting diodes
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- Yuan, Fanglong (author)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten,Beijing Normal Univ, Peoples R China
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- Folpini, Giulia (author)
- Ist Italiano Tecnol, Italy
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- Liu, Tianjun (author)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
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- Singh, Utkarsh (author)
- Linköpings universitet,Teoretisk Fysik,Tekniska fakulteten
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- Treglia, Antonella (author)
- Ist Italiano Tecnol, Italy; Politecn Milan, Italy
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- Lim, Jia Wei Melvin (author)
- Nanyang Technol Univ, Singapore
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- Klarbring, Johan, 1989- (author)
- Linköpings universitet,Teoretisk Fysik,Tekniska fakulteten
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- Simak, Sergei I., 1967- (author)
- Linköpings universitet,Teoretisk Fysik,Tekniska fakulteten,Uppsala Univ, Sweden
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- Abrikosov, Igor (author)
- Linköpings universitet,Teoretisk Fysik,Tekniska fakulteten
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- Sum, Tze Chien (author)
- Nanyang Technol Univ, Singapore
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- Petrozza, Annamaria (author)
- Ist Italiano Tecnol, Italy
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- Gao, Feng (author)
- Linköpings universitet,Elektroniska och fotoniska material,Tekniska fakulteten
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(creator_code:org_t)
- 2024
- 2024
- English.
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In: Nature Photonics. - : NATURE PORTFOLIO. - 1749-4885 .- 1749-4893.
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- 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. Controlling the intrinsic doping of lead-free perovskites enables near-infrared LEDs emitting at 948 nm with a peak radiance of 226 W sr-1 m-2 and a half-lifetime of 39.5 h.
Subject headings
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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To the university's database
- By the author/editor
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Yuan, Fanglong
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Folpini, Giulia
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Liu, Tianjun
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Singh, Utkarsh
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Treglia, Antonel ...
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Lim, Jia Wei Mel ...
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show more...
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Klarbring, Johan ...
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Simak, Sergei I. ...
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Abrikosov, Igor
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Sum, Tze Chien
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Petrozza, Annama ...
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Gao, Feng
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Atom and Molecul ...
- Articles in the publication
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Nature Photonics
- By the university
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Linköping University