Sol–gel prepared AlPO4 with incorporating Rhodamine 6G
Sol–gel prepared AlPO4 with incorporating Rhodamine 6G
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DOI：
10.1016/j.jnoncrysol.2010.05.018
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发表时间：
2010-10
影响因子：
3.5
通讯作者：
Rihong Li;Long Zhang;A. S. Camargo;H. Eckert
中科院分区：
文献类型：
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作者：
Rihong Li;Long Zhang;A. S. Camargo;H. Eckert
采用溶胶-凝胶法一步法和两步法分别制备了罗丹明6 G（RH 6 G）激光染料掺杂AlPO 4干凝胶和玻璃。用激发光谱和发射光谱研究了染料在干凝胶和玻璃中的聚集行为。结果表明，染料在AlPO 4玻璃中的聚集体比在干凝胶中明显减弱，这可能是由于染料与AlPO 4网络之间的相互作用增强以及AlPO 4玻璃的介孔结构对染料的纳米级分离. AlPO 4玻璃的~（27）Al MAS NMR证实了RH 6 G与AlPO 4玻璃网络的相互作用。将RH 6 G掺入AlPO 4玻璃中将Al（4）转化为Al（6）单元，导致Al（6）浓度随着掺杂RH 6 G浓度的增加而增加。
Rhodamine 6G (RH6G) laser dye-doped AlPO4xerogel and glass were prepared via a simple sol–gel route by one-step process and two-step process, respectively. The aggregating behavior of dyes in xerogel and glass was studied by excitation and emission spectra. The results indicated the dye aggregates become significantly weak in AlPO4glass than in xerogel, which might be attributed to the enhanced interactions between dye and AlPO4network as well as the nano-scale separation of dye by the mesoporous structure of AlPO4glass. The27Al MAS NMR of AlPO4glass confirms the interaction of RH6G with AlPO4glass network. Incorporation of RH6G into AlPO4glass converts Al(4) to Al(6) units, resulting in the increase of Al(6) concentration with the doped RH6G concentration.