The Quasi-2D hybrid perovskite thin films induced crystallization by low pressure flashing enable color-tuned blue light-emitting diodes

Lu Huang; Can Liu; Ziqi Nie; Cewei Ren; Ruilin Chen; Weiguang Yang; Wenqing Zhu

doi:10.1117/12.2567395

20 August 2020 The Quasi-2D hybrid perovskite thin films induced crystallization by low pressure flashing enable color-tuned blue light-emitting diodes

Lu Huang, Can Liu, Ziqi Nie, Cewei Ren, Ruilin Chen, Weiguang Yang, Wenqing Zhu

Author Affiliations +

Proceedings Volume 11473, Organic and Hybrid Light Emitting Materials and Devices XXIV; 114731L (2020) https://doi.org/10.1117/12.2567395
Event: SPIE Organic Photonics + Electronics, 2020, Online Only

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Abstract

High crystallinity of PEA2(Rb1-xCsx)2Pb3Br10 perovskite films are successfully fabricated in order to improve the surface coverage of perovskite film induced crystallization by low pressure flashing method in the spin-coating process. Due to this formation method for PEA2(Rb1-xCsx)2Pb3Br10 perovskite thin films, we were able to improve electroluminescence (EL) properties of hybrid perovskite blue light emitting device. The improved perovskite thin film can be achieved by one step spin-coating which can provide crystallization in vacuum environment under the concentration of solution-processed PEA2(Rb1-xCsx)2Pb3Br10 unchanged to promote the grain growth.The perovskite film produced by low pressure flashing method can improve the property and stability of devices.

Citation Download Citation

Lu Huang, Can Liu, Ziqi Nie, Cewei Ren, Ruilin Chen, Weiguang Yang, and Wenqing Zhu "The Quasi-2D hybrid perovskite thin films induced crystallization by low pressure flashing enable color-tuned blue light-emitting diodes", Proc. SPIE 11473, Organic and Hybrid Light Emitting Materials and Devices XXIV, 114731L (20 August 2020); https://doi.org/10.1117/12.2567395

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