articleNature PhotonicsJan 5, 2024HYBRID OA

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

FYFanglong YuanGFGiulia FolpiniTLTianjun LiuUSUtkarsh SinghATAntonella Treglia

Linköping University · Beijing Normal University · +5 more institutions

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Abstract

Abstract 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 (CsSnI 3 ) by retarding and controlling the crystallization process of perovskite precursors in tin-rich conditions.…

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177
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Authors

12

Topics & keywords

Topics
Keywords
  • Light-emitting diode
  • Materials science
  • Optoelectronics
  • Diode
  • Wavelength
  • Perovskite (structure)
  • Radiance
  • Infrared
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