New Electrochromic Systems for the Color E-Paper

2019 ◽  
Vol 28 (3) ◽  
pp. 129-135
Author(s):  
Chang Ho Noh ◽  
Seog Jin Jeon ◽  
Rupasree R. Das ◽  
Deuk Seok Chung ◽  
Yong Wan Jin ◽  
...  
2017 ◽  
Vol 95 (3) ◽  
pp. 243-252 ◽  
Author(s):  
Yusuke Ishigaki ◽  
Hidetoshi Kawai ◽  
Ryo Katoono ◽  
Kenshu Fujiwara ◽  
Hiroki Higuchi ◽  
...  

2,5-Bis(diarylethenyl)thiophenes (1) and their bithiophene (2) and terthiophene (3) homologues were designed as a new series of violene/cyanine-hybrid-type electrochromic materials. Alkoxyphenyl and dialkylaminophenyl groups are used as the aryl group in the cyanine parts of 1/2/3O and 1/2/3N, respectively, which emit fluorescence in the neutral state but not in the oxidized state. Voltammetric analyses of 18 newly prepared electron donors show that they all undergo two reversible one-electron oxidations. Redox potentials, UV–vis spectral features, and fluorescence quantum yields are important parameters for characterizing the present electrochromic behavior with a fluorescence response, and can be finely tuned by changing aryl groups in the cyanine part, the number of thiophene rings in the violene part, and the alkyl-chain length of the alkoxyphenyl or diaklylaminophenyl groups (R = CH3, C8H17, C16H33), which makes this a versatile platform for the design of novel electrochromic materials.


Heterocycles ◽  
2021 ◽  
Vol 102 (3) ◽  
pp. 419
Author(s):  
Takanori Suzuki ◽  
Yusuke Ishigaki ◽  
Masaki Takata ◽  
Jun-ichi Nishida ◽  
Takanori Fukushima

2008 ◽  
Vol 20 (23) ◽  
pp. 7260-7267 ◽  
Author(s):  
Zoë Tebby ◽  
Odile Babot ◽  
Thierry Toupance ◽  
Dae-Hoon Park ◽  
Guy Campet ◽  
...  

2020 ◽  
Vol 7 ◽  
Author(s):  
Romain Futsch ◽  
Issam Mjejri ◽  
Harena Rakotozafy ◽  
Aline Rougier

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