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罗丹明101的高压荧光特性

DOI: 10.11858/gywlxb.2006.01.002, PP. 6-10

Keywords: 高压,罗丹明101,荧光

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Abstract:

测定了粉末罗丹明101(Rhodamine101)及其在溶剂(甲醇、乙醇、水的混合液)中的高压荧光光谱。结果表明,粉末样品和溶液样品在高压下的发光性质有很大的区别。对于粉末样品,随着压力的增加,Rhodamine101的荧光强度下降很快,在大约8GPa时荧光峰几乎消失;伴随着荧光强度的变化,荧光峰峰位发生了显著红移(8GPa内红移了近100nm)。对于溶液样品,其荧光强度随压力的增加降低较慢,到13GPa时,强度约为常压的10%,荧光峰峰位红移较小(13GPa内红移约50nm)。在压力作用下,Rhodamine101分子结构的变化和特殊的溶剂效应,分别是影响其在粉末状态和溶液中荧光性质的主要因素。

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