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13 March 2024 Structurally engineered phosphor using resonant cavity for high color-conversion efficiency
Tae-Yun Lee, Heonsu Jeon
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Proceedings Volume PC12906, Light-Emitting Devices, Materials, and Applications XXVIII; PC129060B (2024) https://doi.org/10.1117/12.3001474
Event: SPIE OPTO, 2024, San Francisco, California, United States
Abstract
Phosphors with high color-conversion efficiency are crucial for high-performance full-color displays. Recent research by the authors achieved 7-fold enhancement in color-conversion efficiency through structurally engineered phosphors, where phosphor materials were integrated into a nano-photonic structure, specifically photonic crystal (PhC) to exploit resonant absorption. However, challenges remain, including the waste of excitation photons and complex nanofabrication. In this presentation, structural phosphor based on a resonant cavity (RC) is introduced. A thin 40-nm CQD film embedded in a tailored RC results in high absorption (~87%) and enhanced fluorescence (~29×), while the simple planar geometry obviates the need for complex nanofabrications.
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Tae-Yun Lee and Heonsu Jeon "Structurally engineered phosphor using resonant cavity for high color-conversion efficiency", Proc. SPIE PC12906, Light-Emitting Devices, Materials, and Applications XXVIII, PC129060B (13 March 2024); https://doi.org/10.1117/12.3001474
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KEYWORDS
Quantum engineering
Structural engineering
Photons
Glasses
Industrial applications
Light absorption
Lithography
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