Pre-synthesized powder route and vitamin B 1 additive engineering for red-emitting pure-2D PEA 2 SnI 4 perovskite light-emitting diodes

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Abstract
Pre-synthesized powder and VB 1 engineering synergistically regulate crystallization and defects, enabling efficient lead-free pure-2D PEA 2 SnI 4 PeLEDs.
Funding Information
  • National Natural Science Foundation of China (62474070)
  • National Natural Science Foundation of China (61404051)
  • Natural Science Foundation of Guangdong Province (2025A1515010023)
  • National Science and Technology Major Project (2025ZD0615900)
  • National Science and Technology Major Project (2024ZD0604100)
  • State Key Laboratory of Luminescent Materials and Devices (Skllmd-2025-07)

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