Challenges in development of photostable Cd-free quantum dot based color convertors for microLED applications

Rafael Prato; Willem Walravens; Igor Nakonechnyi

doi:10.1117/12.2692362

13 March 2024 Challenges in development of photostable Cd-free quantum dot based color convertors for microLED applications

Rafael Prato, Willem Walravens, Igor Nakonechnyi

Author Affiliations +

Proceedings Volume 12906, Light-Emitting Devices, Materials, and Applications XXVIII; 1290606 (2024) https://doi.org/10.1117/12.2692362
Event: SPIE OPTO, 2024, San Francisco, California, United States

Abstract

Quantum Dots (QDs) with it’s high photoluminescent quantum yield and absorption cross section have been established as a material of choice for color conversion applications. For a long time the industrial use of QDs has been restricted to a remote phosphor approach in liquid-crystal displays due to poor photothermal stability. While a lot of progress has been obtained for Cd-based QDs, the Cd-free alternatives are lagging behind. At QustomDot we have made a lot of progress towards obtaining photostable Cd-free QDs, currently surviving high blue light fluxes of 0,5-1,5 W/cm². We are presenting an overview of major challenges in developing QDs for microLED applications and main factors impacting the degradation mechanism of QDs under blue light illumination.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Rafael Prato, Willem Walravens, and Igor Nakonechnyi "Challenges in development of photostable Cd-free quantum dot based color convertors for microLED applications", Proc. SPIE 12906, Light-Emitting Devices, Materials, and Applications XXVIII, 1290606 (13 March 2024); https://doi.org/10.1117/12.2692362

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