Photophysics and photochemistry of NIR absorbers derived from cyanines: key to new technologies based on chemistry 4.0.

ABSTRACT: Cyanines derived from heptamethines were mainly discussed regarding their functionalization to broaden the solubility in different surroundings exhibiting either hydrophilic or hydrophobic properties and to tailor made the ΔG _et photopysical properties with respect to absorption and fluorescence. Electrochemical properties were additionally considered for some selected examples. The cyanines chosen comprised as end groups either indolenine, benzo[e]- or benzo[cd]indolium pattern, which facilitated to shift the absorption between 750-1000 nm. This enabled their use in applications with light sources emitting in the near-infrared (NIR) region selected from high power LEDs or lasers with line-shaped focus. The absorbers considered were discussed regarding their

SUBMITTER: Strehmel B 

PROVIDER: S-EPMC7113544 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature