High-Uniform and High-Efficient Color Conversion Nanoporous GaN-Based Micro-LED Display with Embedded Quantum Dots

Quantum dot (QD)-based RGB micro-LED technology is seen as one of the most promising approaches towards full color micro-LED displays. In this work, we present a novel nanoporous GaN (NP-GaN) structure that can scatter light and host QDs, as well as a new type of micro-LED array based on an NP-GaN e...

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Detalles Bibliográficos
Autores principales: Huang, Yu-Ming, Chen, Jo-Hsiang, Liou, Yu-Hau, James Singh, Konthoujam, Tsai, Wei-Cheng, Han, Jung, Lin, Chun-Jung, Kao, Tsung-Sheng, Lin, Chien-Chung, Chen, Shih-Chen, Kuo, Hao-Chung
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8537299/
https://www.ncbi.nlm.nih.gov/pubmed/34685137
http://dx.doi.org/10.3390/nano11102696
Descripción
Sumario:Quantum dot (QD)-based RGB micro-LED technology is seen as one of the most promising approaches towards full color micro-LED displays. In this work, we present a novel nanoporous GaN (NP-GaN) structure that can scatter light and host QDs, as well as a new type of micro-LED array based on an NP-GaN embedded with QDs. Compared to typical QD films, this structure can significantly enhance the light absorption and stability of QDs. As a result, the green and red QDs exhibited light conversion efficiencies of 90.3% and 96.1% respectively, leading to improvements to the luminous uniformity of the green and red subpixels by 90.7% and 91.2% respectively. This study provides a viable pathway to develop high-uniform and high-efficient color conversion micro-LED displays.

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