Efficient near-infrared perovskite light-emitting diodes with controlled charge transport layer

Shuo Sun; Junjie Si; Zugang Liu; Ying Tang; Xiaolin Yuan; Sergei I. Pavlov; Pavel N. Brunkov

doi:10.1117/12.2586896

8 December 2020 Efficient near-infrared perovskite light-emitting diodes with controlled charge transport layer

Shuo Sun, Junjie Si, Zugang Liu, Ying Tang, Xiaolin Yuan, Sergei I. Pavlov, Pavel N. Brunkov

Proceedings Volume 11606, ICOSM 2020: Optoelectronic Science and Materials; 1160610 (2020) https://doi.org/10.1117/12.2586896
Event: Second International Conference on Optoelectronic Science and Materials (ICOSM 2020), 2020, Hefei, China

Abstract

Metal halide perovskite has the advantages of facile manufacture, high color purity and good spectral stability, which has a broad application prospect in light-emitting diodes (LEDs). Balanced charge transportation and recombination is vital for efficient perovskite light-emitting diodes (PeLEDs). In this work, we applied ZnO films with different thickness as electron transport layer (ETL) in near-infrared PeLEDs to modulate electron transportation. With controlled ZnO films, the external quantum efficiency (EQE) of PeLEDs is improved from 3.81% to 12.24%. The improvements provide a broad research prospect for efficient PeLEDs.

Citation Download Citation

Shuo Sun, Junjie Si, Zugang Liu, Ying Tang, Xiaolin Yuan, Sergei I. Pavlov, and Pavel N. Brunkov "Efficient near-infrared perovskite light-emitting diodes with controlled charge transport layer", Proc. SPIE 11606, ICOSM 2020: Optoelectronic Science and Materials, 1160610 (8 December 2020); https://doi.org/10.1117/12.2586896

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