摘要
本文用光声谱(photoacousticspectroscopy,PAS)结合光吸收谱、荧光光谱等对在工业上有潜在应用前景的聚丁二炔(polydiacetylene,PDA)Langmuir-Blodget(LB)薄膜进行了研究。对经不同气体环境处理的PDALB膜的紫外-可见光声谱、光吸收谱和荧光光谱的综合分析表明,PDALB膜的激发态弛豫过程中激子和极化子形成的元激发性质。此外,还讨论了PDALB膜的荧光量子效率。本文的研究结果表明,用光声谱研究LB膜,可以获取仅用其他光谱得不到的信息。
In this paper the polydiacetylene (PDA) Langmuir Blodgett (LB) films,which have potential applications in industry,are studied by using photoacoustic spectrum (PAS) combined with optical absorption and fluorescence spectra.The synthetical analysis of PAS and optical absorption and fluorescence spectra for PDA LB films that underwent environment with different kinds of gases shows that the information about relaxation process of excitation state and feature of elementary excitation can be achieved.Besides,fluorescence quantum efficiency was discussed.The achievment of this paper shows that the PAS technique is a valid means for studying LB films and can capture information which cannot be achieved by other optical spectroscopy.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
1999年第3期282-285,共4页
Spectroscopy and Spectral Analysis
关键词
聚丁二炔
LB膜
光声谱
荧光光谱
Polydiacetylene(PDA)
Photoacoustic spectroscopy(PAS)
Langmuir Blodgett(LB)film