Rhodamine 6G-SiO2 hybrids:: A photoluminescence study
Rhodamine 6G-SiO2 hybrids:: A photoluminescence study
复制标题
DOI：
10.1016/j.jnoncrysol.2005.04.027
复制
发表时间：
2005-07-15
影响因子：
3.5
通讯作者：
Mustarelli, PC
中科院分区：
文献类型：
--
作者：
Anedda, A;Carbonaro, CM;Mustarelli, PC
报道了多孔二氧化硅中罗丹明6 G染料的光致发光特性。不同类型的有机-无机混合物已被制备和表征：I类和II类系统已被研究作为罗丹明6 G浓度的函数。样品已通过溶胶-凝胶技术制备，在该过程的溶胶阶段引入有机分子，或通过用罗丹明6 G乙醇溶液加载商业多孔二氧化硅样品。为了研究主客体之间的化学物理相互作用，并评估固体染料激光器的可行性，对光致发光特性进行了比较分析。随着有机分子浓度的增加，光致发光峰位发生红移。在所研究的范围内，罗丹明6 G浓度为5 × 10（-4）摩尔时，样品的荧光强度最大。通过比较不同样品的峰位置的罗丹明6 G的乙醇溶液之一，我们个性化的II类系统作为最有前途的复合材料的光电应用。(c)2005 Elsevier B. V.保留所有权利。
Photoluminescence properties of Rhodamine 6G dye confined in porous silica are reported. Different types of organic-inorganic hybrids have been prepared and characterized: class I and II systems have been investigated as a function of rhodamine 6G concentration. Samples have been prepared by the sol-gel technique, introducing the organic molecules at the sol stage of the process, or by loading commercial porous silica samples with rhodamine 6G ethanol solution. A comparative analysis on the photoluminescence properties have been performed in order to investigate host guest chemical-physical interactions and to assess the feasibility of solid state dye lasers. The peak position of the photo luminescence red shifts by increasing the organic molecule concentration. In the investigated range, samples with 5 x 10(-4) Mole of rhodamine 6G showed the larger emission. By comparing the peak position of the different samples to the one of the ethanolic solution of rhodamine 6G we individuated the class II systems as the most promising composites for optoelectronic applications. (c) 2005 Elsevier B.V. All rights reserved.