摘要
分别从理论和实验上对紫外光激励不同浓度的乙醇溶液所产生的荧光光谱及其特性进行了分析研究。结果表明 ,在波长为 2 5 4nm的紫外光激励下 ,乙醇溶液可以产生较强的荧光 ,其峰值为 395nm ,经研究认为该荧光是由乙醇分子中C OH基团的孤对电子产生的。
The fluorescence spectra of alcohol solution induced by ultraviolet light and its characteristic are studied experimentally and theoretically in this paper. The results show that alcohol solution can emit strong fluorescence at 395nm when excited by ultraviolet light with the wavelength of 254nm.It is considered that this fluorescence comes from the transition from n→σ * of the lone pair electrons in the hetero atom group (C OH) of the ethanol molecule. Investigation on the fluorescence spectra and its characteristics will contribute to study of other organic macromolecule fluorescence spectra when alcohol serves as solute.
出处
《激光技术》
CAS
CSCD
北大核心
2003年第5期477-479,483,共4页
Laser Technology
关键词
紫外光
激励
乙醇溶液
荧光光谱
ultraviolet light
induced
alcohol solution
fluorescence spectra
