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D‐π‐A Conjugated Molecules for Optoelectronic Applications
Author(s) -
Kim TaeDong,
Lee KwangSup
Publication year - 2015
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201400749
Subject(s) - chromophore , conjugated system , materials science , homo/lumo , polarizability , delocalized electron , optoelectronics , acceptor , band gap , nanotechnology , molecule , chemistry , physics , polymer , photochemistry , organic chemistry , composite material , condensed matter physics
Dipolar chromophores consisting of electron donor (D) and electron acceptor (A) groups connected through a conjugated π‐bridge have been actively studied and integrated in optoelectronic and electronic devices. Generally, such π‐conjugated molecules provide substantial delocalization of π‐electrons over the molecules. Here, a brief overview of recent research on D‐π‐A dipolar chromophores including their syntheses and several promising applications is reported, especially in nonlinear optical devices and organic photovoltaics. Structure/property relationships are discussed in order to exploit the potentials by tuning the π‐electron density, polarizability, and HOMO–LUMO band gap of the chromophores. Some of the examples may well set the stage for chip‐scale integration of optoelectronics as well as the realization of an important array of new device technologies.