研究目的
Investigating the electroluminescent properties of lead-free two-dimensional perovskites for light-emitting diodes.
研究成果
The lead-free (OAm)2SnBr4 2D perovskite crystals synthesized by a solution-based hot injection method exhibit high PL QYs and were successfully used in inverted LED structures, demonstrating significant potential for optoelectronic applications despite the need for further performance improvements.
研究不足
The study focuses on the electroluminescent properties of a specific lead-free perovskite, and further efforts are required to improve device performance.
1：Experimental Design and Method Selection:
The synthesis of the (OAm)2SnBr4 perovskite was conducted in solution by a hot injection method.
2：Sample Selection and Data Sources:
The materials used include (C18H35NH3)2SnBr4 perovskite, ZnO nanocrystals, and TCTA.
3：List of Experimental Equipment and Materials:
TEM, XRD, FTIR, XPS, UPS, and LED fabrication equipment.
4：Experimental Procedures and Operational Workflow:
Synthesis of perovskite, characterization of optical and structural properties, fabrication of LEDs, and measurement of electroluminescence.
5：Data Analysis Methods:
Analysis of PL spectra, PL decay times, and LED performance metrics.
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