Extended Electrical and Photonic Characterization of GaN-Based Ultra-Violet MicroLEDs With an ITO Emission Window Layer

Tsai, Yi‐Lin; Huang, Shih-Hao; Huang, Huang-Hsiung; Yang, Shu-Mei; Liang, Kai-Ling; Kuo, Wei-Hung; Fang, Yen-Hsiang; Wu, Chih-I; Wang, Shou Wei; Shih, H. C.; Xu, Zhiyu; Cho, Minkyu; Shen, Shyh‐Chiang; Lin, Chien-Chung

doi:10.1109/jphot.2020.3037220

Cited by 7 publications

(2 citation statements)

References 26 publications

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“…One of the key concerns rises from the difficulties for smaller chip transfer. Although it is possible to fabricate micro LED chips with sizes smaller than 5 m [6,7] these days, it is difficult to mass-transfer tiny devices onto different substrates, not to mention the high precision that requires in this job. In the past, 8 m by 15m devices have been demonstrated with an estimated array size of 100 by 100 [8].…”

Section: Introductionmentioning

confidence: 99%

Colloidal Quantum Dot Enhanced Color Conversion Layer for Micro LEDs

Lin

Liang

Kuo

et al. 2022

IEICE Trans. Electron.

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In this paper, we introduce our latest progress in the colloidal quantum dot enhanced color conversion layer for micro LEDs. Different methods of how to deploy colloidal quantum dots can be discussed and reviewed. The necessity of the using color conversion layer can be seen and color conversion efficiency of such layer can be calculated from the measured spectrum. A sub-pixel size of 5 micron of colloidal quantum dot pattern can be demonstrated in array format.

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Section: Introductionmentioning

confidence: 99%

Colloidal Quantum Dot Enhanced Color Conversion Layer for Micro LEDs

Lin

Liang

Kuo

et al. 2022

IEICE Trans. Electron.

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“…Meanwhile, gallium nitride related materials are highly efficient and resilient towards such surface recombination effect, such that devices with sizes smaller than 10 m were reported with good illumination capability [2,7].Thus another possible solution can be applied for high resolution display: the color conversion method. If substances with visible light emission capability can be excited by these monochromatic GaN based micro LEDs, the full-color target can be achieved.…”

Section: Introductionmentioning

confidence: 99%

77‐1: Invited Paper: The Colloidal Quantum Dot Based Color Conversion Layer for Micro LED Arrays

Lin,

Kuo,

Lee

et al. 2023

Symp Digest of Tech Papers

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The advances of micro LEDs and colloidal quantum dots have provided a great platform for the next generation of micro displays. Although the illuminating efficiency of colloidal quantum dots is close to 100%, the patterning of these nanocrystals is still important and need to be developed. We use semiconductor grade fabrication to obtain small pixels smaller than 10 micrometers and a large scale formation of array. The photonic characterization reveals the conversion efficiency is 20% and the excitation wavelength dependent behavior is also probed. A 1300‐hour of vacuum storage test showed this type of color conversion layer is stable and the emission wavelength and linewidth are almost unchanged.

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