研究了不同活性分子 (半花菁和氐盐 )混合聚集体的形成以及紫外光照射对 L B交替多层膜光致荧光 (PL)特性的影响。在半花菁和氐盐混合的 L B膜中 ,由于不同分子间较强的相互作用使混合膜的荧光光谱较纯半花菁和氐盐分子膜分别发生了蓝...研究了不同活性分子 (半花菁和氐盐 )混合聚集体的形成以及紫外光照射对 L B交替多层膜光致荧光 (PL)特性的影响。在半花菁和氐盐混合的 L B膜中 ,由于不同分子间较强的相互作用使混合膜的荧光光谱较纯半花菁和氐盐分子膜分别发生了蓝移和红移。利用紫外光照射可以使分子的聚集体部分分解甚至破坏分子的结构 。展开更多
Eu3＋-doped ZnMoO4 with different doping concentrations were synthesized by a hydrothermal method. The effects of Eu3＋ doping on the phase structure and photoluminescence （PL） properties of ZnMoO4 were investigated...Eu3＋-doped ZnMoO4 with different doping concentrations were synthesized by a hydrothermal method. The effects of Eu3＋ doping on the phase structure and photoluminescence （PL） properties of ZnMoO4 were investigated. The result showed that the introduction of Eu3~ could lead to phase transition of ZnMoO4. With the increase of Eu3-- doping amount, [3-ZnMoO4 was transformed to ct phase gradually, which led to different photoluminescence performances. The optimized doping concentration of Eu3＋ was 6 mol% for the highest emission intensity at 615 nm. Its CIE chromaticity coordinates were （0.667, 0.331）, which were very close to the values of standard chromaticity （0.67, 0.33） for National Television Standards Committee （NTSC） system. Therefore, Eu3＋-doped ZnMoO4 is considered to be a promising red-emitting phosphor for white LED applications.展开更多
文摘研究了不同活性分子 (半花菁和氐盐 )混合聚集体的形成以及紫外光照射对 L B交替多层膜光致荧光 (PL)特性的影响。在半花菁和氐盐混合的 L B膜中 ,由于不同分子间较强的相互作用使混合膜的荧光光谱较纯半花菁和氐盐分子膜分别发生了蓝移和红移。利用紫外光照射可以使分子的聚集体部分分解甚至破坏分子的结构 。
基金supported by the National Natural Science Foundation of China(11204250)Foundation of Education Department of Sichuan Province,China(12ZA186)+1 种基金the Graduate Innovation Fund of Southwest University of Science and Technology(14ycx068)the Open Foundation of Joint Laboratory for Extreme Conditions Matter Properties(12zxjk02)
文摘Eu3＋-doped ZnMoO4 with different doping concentrations were synthesized by a hydrothermal method. The effects of Eu3＋ doping on the phase structure and photoluminescence （PL） properties of ZnMoO4 were investigated. The result showed that the introduction of Eu3~ could lead to phase transition of ZnMoO4. With the increase of Eu3-- doping amount, [3-ZnMoO4 was transformed to ct phase gradually, which led to different photoluminescence performances. The optimized doping concentration of Eu3＋ was 6 mol% for the highest emission intensity at 615 nm. Its CIE chromaticity coordinates were （0.667, 0.331）, which were very close to the values of standard chromaticity （0.67, 0.33） for National Television Standards Committee （NTSC） system. Therefore, Eu3＋-doped ZnMoO4 is considered to be a promising red-emitting phosphor for white LED applications.
