Realization of lead-reduced CsPbX3 perovskite nanocrystals for white light-emitting diodes

Saroj Thapa; Gopi C. Adhikari; Hongyang Zhu; Alexei Grigoriev; Peifen Zhu

doi:10.1117/12.2577902

5 March 2021 Realization of lead-reduced CsPbX3 perovskite nanocrystals for white light-emitting diodes

Saroj Thapa, Gopi C. Adhikari, Hongyang Zhu, Alexei Grigoriev, Peifen Zhu

Proceedings Volume 11706, Light-Emitting Devices, Materials, and Applications XXV; 117061Q (2021) https://doi.org/10.1117/12.2577902
Event: SPIE OPTO, 2021, Online Only

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Abstract

The introduction of non-toxic guest cations (zinc, Zn2+) in the synthesis of CsPbX3 NCs leads to the realization of lead-reduced CsPb1-xZnxX3 NCs, confirming the substitution of Pb2+ up to 15%. As-synthesized NCs exhibits lattice contraction accompanied by increased bandgap, blue-shifted photoluminescence emissions, and high quantum yield. Besides, the blue, green, yellow, and red-emitting CsPb1-xZnxX3 NCs (at x=15%) obtained by adjusting the composition of different halides when used as color conversion layers emits warm to cool white light with remarkable color qualities. Notably, this development will promote the halide perovskite NCs one step closer to their practical applications.

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Citation Download Citation

Saroj Thapa, Gopi C. Adhikari, Hongyang Zhu, Alexei Grigoriev, and Peifen Zhu "Realization of lead-reduced CsPbX3 perovskite nanocrystals for white light-emitting diodes", Proc. SPIE 11706, Light-Emitting Devices, Materials, and Applications XXV, 117061Q (5 March 2021); https://doi.org/10.1117/12.2577902

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