Corannulene-based donor-acceptor-type conjugated polymers with electrochromic properties
Journal
Journal of Materials Chemistry C
Journal Volume
9
Journal Issue
25
Pages
7919-7927
Date Issued
2021
Author(s)
Abstract
π-Conjugated polymers have received increasing attention in electrochromic material research because their color change can be altered over a wide range by introducing electron-donor (D) and electron-acceptor (A) moieties. In this study, we have synthesized curved corannulene-based monomers with D and A moieties and applied them to prepare π-conjugated polymers to drive color switching. The absorption and emission properties of our conjugated polymers can be tuned by inserting D and A moieties into the conjugated backbone. Through this study, it has been demonstrated that corannulene-based conjugated polymers exhibit stable electrochromic properties with a high optical contrast ratio. Furthermore, emissions in the solid state and reversible electrofluorescence switching are observed in these polymers. This might be due to the inhibition of aggregation-induced quenching through the incorporation of nonplanar corannulene in the π-conjugated backbone. Based on these results, we consider corannulene-embedded π-conjugated polymers as a new π-conjugated system with versatile and tunable optical properties for application in modern optoelectronic devices. ? The Royal Society of Chemistry 2021.
Subjects
Electrochromic devices
Electrochromism
Optical properties
Optoelectronic devices
Absorption and emissions
Based conjugated polymers
Conjugated backbones
Electrochromic materials
Electrochromic properties
Electron acceptor
Pi-conjugated system
Tunable optical properties
Conjugated polymers
SDGs
Type
journal article