Details

Autor(en) / Beteiligte

• Xu, Xiao-qian
• Zheng, Wen-wei
• Tao, Yi-jie
• Cheng, Hai-feng
• Zhang, Zhao-yang

Titel

Tricolor electrochromism of copolymer based on selenophene and 3,4-ethylenedioxythiophene

Ist Teil von

• Synthetic metals, 2012-12, Vol.162 (24), p.2428-2432

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2012

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• ► A copolymer film based on selenophene and 3,4-ethylenedioxythiophene has been successfully deposited on ITO electrode in BFEE. ► The formation of the copolymer has been confirmed by CVs, FTIR and element analysis. ► The copolymer film presents tricolor electrochromism (green-yellow, blue-green and blue). ► The film has reasonable switching rate, coloration efficiency and stability. A copolymer based on selenophene and 3,4-ethylenedioxythiophene was successfully synthesized by electrochemical polymerization in boron trifluoride diethyl etherate (BFEE). The resultant copolymer was characterized by cyclic voltammetry, FTIR, XPS, SEM and spectroelectrochemistry. The copolymer presented tricolor electrochromism, which was dark green-yellow (in the neutral state), blue-green (in the intermediate state) and blue (in the oxidized state). Furthermore, the optical contrast and switching time of the copolymer was found to be 19.8% and 3.2s at 728nm, respectively, which remained 75.1% of its original electroactivity after 200 cycles.