Directional enhancement of photoluminescence from phosphor plates with TiO 2 nanoantenna stickers
Year: 2025
Type: article
Abstract: Directional illumination is critical for next-generation solid-state lighting. In this study, we demonstrate that flexible nanoantenna stickers enhance photoluminescence (PL) directionality. By integrating YAG:Ce phosphor plates and distributed Bragg reflectors (DBRs), these stickers achieve controlled radiation distribution, advancing the development of compact, high-performance illumination technologies. In addition, these stickers produce a different PL output by simply changing the thickness of the phosphor plate. The output PL intensity is doubled by placing a DBR layer on the bottom of the plate, thereby transmitting blue excitation light while reflecting yellow PL. This study provides a simple and versatile method for tuning PL from phosphor plates. This technique can serve as a fundamental tool for controlling light flow with improved efficiency.
Source: Nanophotonics
Authors: Hongjie Gao, Joshua T.Y. Tse, Shunsuke Murai, Katsuhisa Tanaka
Institutions: Kyoto University, Osaka Metropolitan University
Language: English
Subfield: Materials Chemistry
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,995
Awards: G1241764427, Inducing chirality in twisted metasurfaces made by stacking stickers, Mechanical tuning of optical properties of flexible and multi-layered metasurfaces, A Challenge achieving an ultimate nanoantenna phosphor, G4407406163, G6241385334, Implementing light management - Exploring a limit of the metasurface
OpenAlex ID: W7107941377