Fluorescence Characteristics of DAST in Silica Nanoparticles
Konferenz: EMIE 2022 - The 2nd International Conference on Electronic Materials and Information Engineering
15.04.2022 - 17.04.2022 in Hangzhou, China
Tagungsband: EMIE 2022
Seiten: 4Sprache: EnglischTyp: PDF
Autoren:
Xu, Minghui; Feng, Yuanting; Li, You; Zhou, Yulong; Liu, Ziji; Xu, Xiangdong (State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China (UESTC), Chengdu, China)
Wang, Yixin (International College, Chongqing University of Posts and Telecommunications, Chongqing, China)
Inhalt:
4-N, N-dimethylamino-4'-N'-methyl-stilbazolium tosylate (DAST) is well-known as one of the most important organic optical materials, but its fluorescence properties require further investigations. In this work, the fluorescence of DAST molecules encapsulated in silica nanoparticles (DAST@SNPs) was measured. Results reveal that blue-shift of the fluorescence peak and large enhancement of the fluorescence intensity were measured when DAST@SNPs were formed. Particularly, the fluorescence intensity of DAST@SNPs is 52.5 times stronger than that of pure DAST aqueous solution, meanwhile the emission peak of the former blue-shifts obviously from 604 nm for the latter to 591 nm.