摘要
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 。
Effects of the mixed aggregates of different a ct ive molecules and UV illumination on photoluminescence(PL) spectra of Langmuir- Blodgett multilayers were investigated.The strong interaction between hemicyanin e and stilbazolium salt molecules in the mixed films caused a blue or red shift of the fluorescence band with respect to that of interleaving hemicyanine or sti lbazolium salt /arachidic acid multilayers.UV illumination would dissociate the aggregates even more destroy the molecular structure,leading to a significant re duction of fluorescence intensity.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2000年第3期273-276,共4页
Spectroscopy and Spectral Analysis
基金
国家自然科学重点基金!(1983 4 0 3 0 )
教育部高校博士点基金资助项目
关键词
聚集体
光致荧光特性
LB膜
半花菁
氐盐
Langmuir-Blodgett(LB)multilayers, Aggregate, Photoluminescence(PL)
