Huang J.-JLin H.-AChen CTang P.-WLuo S.-C.SHYH-CHYANG LUO2022-03-222022-03-22202120507534https://www.scopus.com/inward/record.uri?eid=2-s2.0-85113273787&doi=10.1039%2fd1tc01420j&partnerID=40&md5=86036680167b6a59b8e255dbb12b4a8ahttps://scholars.lib.ntu.edu.tw/handle/123456789/598442π-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.Electrochromic devicesElectrochromismOptical propertiesOptoelectronic devicesAbsorption and emissionsBased conjugated polymersConjugated backbonesElectrochromic materialsElectrochromic propertiesElectron acceptorPi-conjugated systemTunable optical propertiesConjugated polymers[SDGs]SDG7journal article10.1039/d1tc01420j2-s2.0-85113273787