3 September 1996 Study on the photo-oxidation of near-infrared absorbing cyanine dye
Author Affiliations +
Proceedings Volume 2931, Fourth International Symposium on Optical Storage (ISOS '96); (1996) https://doi.org/10.1117/12.248688
Event: Fourth International Symposium on Optical Storage, 1996, Shenzhen, Guangdong Province, China
Abstract
The spectrum characteristic and photostability of three near-infrared absorbing cyanine dyes with typical structure have been studied. The results show that the stability of three dyes with molecular structure of heterocyclic stem nuclei against photooxidation is in such order: benzoxazole > benzothiazole > benselenazole. It was found through quenching experiments that the photooxidation of cyanine dyes not only relates to the singlet oxygen but also to the superoxide anoin, however single oxygen plays a dominant role. We have succeeded in drastically improving the photostability of three cyanine dyes by using a dithiol nickel chelate as a singlet oxygen quencher.
© (1996) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jun Li, Ping Chen, Deshui Zheng, Tsuneki Okazaki, Masaaki Hayami, "Study on the photo-oxidation of near-infrared absorbing cyanine dye", Proc. SPIE 2931, Fourth International Symposium on Optical Storage (ISOS '96), (3 September 1996); doi: 10.1117/12.248688; https://doi.org/10.1117/12.248688
PROCEEDINGS
5 PAGES


SHARE
Back to Top