Lee Seong Min, Choi Kyung Cheol
Department of Electrical Engineering, KAIST, Yuseong-gu, Daejeon 305-701, Republic of Korea.
Opt Express. 2010 Jun 7;18(12):12144-52. doi: 10.1364/OE.18.012144.
The visible emission of BaMgAl(10)O(17):Eu(2+) used for White LED and ACPDPs was enhanced by coupling electric transition with the localized surface plasmon oscillation of nanoscaled Ag particles. Phosphor films including Ag particles were prepared by the spin-coating method. Up to a 36% enhancement of the peak intensity, which was dependent on the morphology and concentration of Ag particles, was obtained. It was verified that the spectral overlap between the LSP energy of metal particle and the emission spectra of phosphor materials decided between the enhancement and quenching of the emission. It was indicated that localized field enhancement due to the LSPR of metal nanoparticles could improve the emission intensity of phosphor doped rare earth ions.
用于白光发光二极管和交流等离子体显示面板的BaMgAl(10)O(17):Eu(2+)的可见发射通过将电跃迁与纳米级Ag颗粒的局域表面等离子体振荡耦合而增强。通过旋涂法制备了包含Ag颗粒的荧光粉薄膜。获得了高达36%的峰值强度增强，这取决于Ag颗粒的形态和浓度。证实了金属颗粒的局域表面等离子体能量与荧光粉材料发射光谱之间的光谱重叠决定了发射的增强和猝灭。表明金属纳米颗粒的局域表面等离子体共振引起的局域场增强可以提高掺杂稀土离子的荧光粉的发射强度。
