Selenophene, thiophene, and furan functionalized π-extended viologen derivatives for tunable all-in-one ECDs
|Corresponding Author||Su，Fengyu; Tian，Yanqing; Liu，Yan Jun|
π-Extended viologen derivatives of SHP, THP and FHP with selenophene, thiophene and furan units between two pyridine moieties, respectively, as chromophores, were synthesized. Compared with conventional viologen of DHP using bipyridines as the chromophore, the three compounds of SHP, THP, and FHP possess extended conjugation lengths and narrowed bandgaps. All-in-one electrochromic devices (ECDs) were assembled using these four viologen derivatives and investigated systematically. Due to the different electronic properties of the chromophores, the devices exhibited different colored states, blue, blue-violet, magenta and red. Furthermore, the electrochromic response of SHP, THP, and FHP extended into near-infrared (NIR) region due to the long conjugation as compared with that of DHP. Further, the ECDs possessing SHP, THP and FHP displayed faster response speed and relatively higher coloration efficiency than that of DHP. Among them, ECD based on FHP has shown the most excellent stability, which retains 95.7% optical contrast of its initial state after continuous working for 20000 cycles. Additionally, upon applying a switching potential, electrofluorochromic (EFC) properties of the devices based on THP and FHP were observed. This study revealed structure-property relations and demonstrated that manipulation of chromophores offers an effective route to obtain multicolor and multifunctional ECDs, which provides potential applications for colorful displays and smart windows.
First ; Corresponding
Southern University of Science and Technology[Y01256114];
|WOS Research Area|
Energy & Fuels ; Materials Science ; Physics
Energy & Fuels ; Materials Science, Multidisciplinary ; Physics, Applied
|WOS Accession No|
|EI Accession Number|
Chromophores ; Electrochromic devices ; Electronic properties ; Infrared devices ; Organic pollutants ; Synthesis (chemical) ; Thiophene
|ESI Classification Code|
Electricity: Basic Concepts and Phenomena:701.1 ; Electronic Components and Tubes:714 ; Light/Optics:741.1 ; Optical Devices and Systems:741.3 ; Chemical Reactions:802.2 ; Organic Compounds:804.1
|ESI Research Field|
Cited Times [WOS]:2
|Document Type||Journal Article|
|Department||Department of Materials Science and Engineering|
1.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.State Key Laboratory of Advanced Welding and Joining,Harbin Institute of Technology,Harbin,150001,China
3.Academy for Advanced Interdisciplinary Studies,Southern University of Science and Technology,Shenzhen,518055,China
4.Department of Electrical and Electronic Engineering,Southern University of Science and Technology,Shenzhen,518055,China
5.Key Laboratory of Energy Conversion and Storage Technology (Southern University of Science and Technology),Ministry of Education,Shenzhen,518055,China
|First Author Affilication||Department of Materials Science and Engineering|
|Corresponding Author Affilication||Academy for Advanced Interdisciplinary Studies; Department of Electrical and Electronic Engineering; Department of Materials Science and Engineering; Southern University of Science and Technology|
|First Author's First Affilication||Department of Materials Science and Engineering|
Sun，Fangyuan,Zhang，He,Cai，Jiayi,et al. Selenophene, thiophene, and furan functionalized π-extended viologen derivatives for tunable all-in-one ECDs[J]. SOLAR ENERGY MATERIALS AND SOLAR CELLS,2023,250.
Sun，Fangyuan,Zhang，He,Cai，Jiayi,Su，Fengyu,Tian，Yanqing,&Liu，Yan Jun.(2023).Selenophene, thiophene, and furan functionalized π-extended viologen derivatives for tunable all-in-one ECDs.SOLAR ENERGY MATERIALS AND SOLAR CELLS,250.
Sun，Fangyuan,et al."Selenophene, thiophene, and furan functionalized π-extended viologen derivatives for tunable all-in-one ECDs".SOLAR ENERGY MATERIALS AND SOLAR CELLS 250(2023).
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