Ultrafast photoinduced dynamics of a donor-([Formula: see text])bridge-acceptor based merocyanine dye.

ABSTRACT: Merocyanine dyes are of great interest amongst researchers due to their nonlinear optical (NLO) properties and solvatochromism. Molecular structure of these dyes constitutes conjugated pathway between the donor and acceptor substituents, with lowest energy transition of [Formula: see text]-[Formula: see text]* character. To rationalize the design of these dyes and deduce structure-property relationship, it is eminent to unravel the excited state dynamics in these complex molecular structures in different solvents. Here we have studied excited state dynamics of a merocyanine dye known as HB194, which has shown commendable efficiency in small molecule based bulk heterojuction solar cells. We have employed femtosecond transient absorption in combination with the quantum chemistry calculations

SUBMITTER: Shen J 

PROVIDER: S-EPMC9617881 | biostudies-literature | 2022 Oct

REPOSITORIES: biostudies-literature