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Expert's Opinion

Quantum Dots: Progress, Challenges, Future in LED Lighting

Dr. Khasha Ghaffarzadeh, research director at IDTechEx, discusses the challenges and prospects faced by QDs in the general lighting market.

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By: Anthony Locicero

Copy editor, New York Post

First, we must ask what value Quantum Dots might deliver in LED lighting? In general lighting, QDs can enable simultaneously achieving high efficacy and high CRI (color rendering index) values. Overall, the efficacy penalty in boosting the CRI is very heavy. In 2019, Osram launched a LED light with on-chip QD, achieving 173lm/W with 90 CRI. Lumileds had demonstrated similar results using the same base QD technology a year or so earlier. These cases improved efficiency by some 8-10% at CRI 90 c...

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