Exploiting the full advantages of colloidal perovskite nanocrystals for large-area efficient light-emitting diodes (Conference Presentation)

Young-Hoon Kim; Jinwoo Park; Tae-Woo Lee

doi:10.1117/12.2637346

3 October 2022 Exploiting the full advantages of colloidal perovskite nanocrystals for large-area efficient light-emitting diodes (Conference Presentation)

Young-Hoon Kim, Jinwoo Park, Tae-Woo Lee

Author Affiliations +

Proceedings Volume PC12208, Organic and Hybrid Light Emitting Materials and Devices XXVI; PC1220808 (2022) https://doi.org/10.1117/12.2637346
Event: SPIE Organic Photonics + Electronics, 2022, San Diego, California, United States

Abstract

We report that highly-efficient large-area PeLEDs with high uniformity can be realized by the use of colloidal perovskite nanocrystals (PNCs), which decouples the crystallization of perovskites from the film-formation process. PNCs are pre-crystallized and surrounded by organic ligands, and thus are not affected by the film formation process, so simple modified-barcoating which facilitates the evaporation of residual solvent provides uniform large-area films. PeLEDs that incorporated the uniform barcoated PNC films achieved external quantum efficiency (EQE) of 23.26% and EQE of 22.5% in a large pixel area of 102 mm2 with high reproducibility.

Conference Presentation

Citation Download Citation

Young-Hoon Kim, Jinwoo Park, and Tae-Woo Lee "Exploiting the full advantages of colloidal perovskite nanocrystals for large-area efficient light-emitting diodes (Conference Presentation)", Proc. SPIE PC12208, Organic and Hybrid Light Emitting Materials and Devices XXVI, PC1220808 (3 October 2022); https://doi.org/10.1117/12.2637346

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