Citation: Jun LI, Ping CHEN, Xiu Jie HU, De Shut ZHENG, Tsuneki Okasaki, Masaaki Hayami. Study on the Photofading of Near-Infrared Absorbing Indolenine Cyanines Dyes[J]. Chinese Chemical Letters, ;1996, 7(12): 1121-1124. shu

Study on the Photofading of Near-Infrared Absorbing Indolenine Cyanines Dyes

a Institute of Photographic Chemistry The Chinese Academy of Sciences Beijing 100101;
b Nippon Kankho-Shikiso Kenkyusho Okayama 701 Japan

Received Date: 17 July 1996

The spectroscopic properties and photostability of three near-infrared absorbing indolenine cyanine dyes have been studied.It was found that photofading of cyanine dyes was mainly caused by photooxidation,and their photostability increased significantly when the cyclic unity was introduced into the polymethine chain.
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