Optical properties and structural morphology of one-dimensional perylenediimide derivatives (original) (raw)

2018, Journal of Luminescence

Three derivatives of perylenediimide derivatives, namely N,N'-Di(tridecyl)-3,4,9,10 perylenetetracarboxylic diimide (DT-PDI), N,N'-dipentyl-3,4,9,10-perylene tetracarboxylic diimide (DP-PDI) and N,N'-Di(dihexyle)-3,4,9,10-perylene tetracarboxylic diimide (DH-PDI) differ in their side-chain substitution have been studied to examine the effect of the substituents on the optical properties and structural morphology in the self-assembly. Due to the different side-chain, the self-assembly of these molecules results in totally different optical properties and structural morphologies, as confirmed from the steady-state absorption and fluorescence, time resolved fluorescence, and scanning electron microscopy (SEM) techniques. The collected results confirmed the formation of onedimensional (1D) nanowires in the case of short linear side chain, chunky aggregates in the case of long linear substituted side chain, and zero-dimensional (0D) nanospheres with the branched substituted side chain.