Study on the photo-oxidation of near-infrared absorbing cyanine dye

Jun Li; Ping Chen; Deshui Zheng; Tsuneki Okazaki; Masaaki Hayami

doi:10.1117/12.248688

3 September 1996 Study on the photo-oxidation of near-infrared absorbing cyanine dye

Jun Li, Ping Chen, Deshui Zheng, Tsuneki Okazaki, Masaaki Hayami

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.

Citation Download Citation

Jun Li, Ping Chen, Deshui Zheng, Tsuneki Okazaki, and 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); https://doi.org/10.1117/12.248688

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available