Optoelectronic system and device integration for quantum-dot light-emitting diode white lighting with computational design framework
Chatura Samarakoon,
Hyung Woo Choi,
Sanghyo Lee,
Xiang-Bing Fan,
Dong-Wook Shin,
Sang Yun Bang,
Jeong-Wan Jo,
Limeng Ni,
Jiajie Yang,
Yoonwoo Kim,
Sung-Min Jung (),
Luigi G. Occhipinti,
Gehan A. J. Amaratunga and
Jong Min Kim
Additional contact information
Chatura Samarakoon: University of Cambridge
Hyung Woo Choi: University of Cambridge
Sanghyo Lee: University of Cambridge
Xiang-Bing Fan: University of Cambridge
Dong-Wook Shin: University of Cambridge
Sang Yun Bang: University of Cambridge
Jeong-Wan Jo: University of Cambridge
Limeng Ni: University of Cambridge
Jiajie Yang: University of Cambridge
Yoonwoo Kim: University of Cambridge
Sung-Min Jung: University of Cambridge
Luigi G. Occhipinti: University of Cambridge
Gehan A. J. Amaratunga: University of Cambridge
Jong Min Kim: University of Cambridge
Nature Communications, 2022, vol. 13, issue 1, 1-13
Abstract:
Abstract We propose a computational design framework to design the architecture of a white lighting system having multiple pixelated patterns of electric-field-driven quantum dot light-emitting diodes. The quantum dot of the white lighting system has been optimised by a system-level combinatorial colour optimisation process with the Nelder-Mead algorithm used for machine learning. The layout of quantum dot patterns is designed precisely using rigorous device-level charge transport simulation with an electric-field dependent charge injection model. A theoretical maximum of 97% colour rendering index has been achieved with red, green, cyan, and blue quantum dot light-emitting diodes as primary colours. The white lighting system has been fabricated using the transfer printing technique to validate the computational design framework. It exhibits excellent lighting performance of 92% colour rendering index and wide colour temperature variation from 1612 K to 8903 K with only the four pixelated quantum dots as primary.
Date: 2022
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:13:y:2022:i:1:d:10.1038_s41467-022-31853-9
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DOI: 10.1038/s41467-022-31853-9
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