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Perovskite quantum dots (PQD) can be created using a ligand assisted reprecipitation method at room temperature with affordable equipment. These PQDs can exhibit much higher photoluminescence (PL) than bulk perovskite films of the same material. In this study, methylammonium lead bromide (MAPbBr3) quantum dots were created using energetically aligned capping ligands of trans-cinnamic acid (TCA) and 3,3-Diphenylpropylamine (DPPA). The bandgap of the PQDs was adjusted by varying the quantity of ligands added to the solution during the ligand assisted reprecipitation process. Prototype light emitting diodes (LEDs) were created using the PQD thin films.
E. Enlow andS. A. Carter
"Tunable emission color of methylammonium lead bromide perovskite quantum dots by varying ligand quantity", Proc. SPIE 12022, Light-Emitting Devices, Materials, and Applications XXVI, 120220I (3 March 2022); https://doi.org/10.1117/12.2608960
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E. Enlow, S. A. Carter, "Tunable emission color of methylammonium lead bromide perovskite quantum dots by varying ligand quantity," Proc. SPIE 12022, Light-Emitting Devices, Materials, and Applications XXVI, 120220I (3 March 2022); https://doi.org/10.1117/12.2608960