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Spray processable ambipolar benzotriazole bearing electrochromic polymers with multi-colored and transmissive states

Hizalan, Goenuel
Balan, Abidin
Baran, Derya
Toppare, Levent Kamil
In the context of low cost flexible display device technology, requirements can be fulfilled with accessible multi-colored electrochromic polymers. Here, we report the synthesis and electrochromic properties of two spray processable, ambipolar, fluorescent and multi-color to transmissive electrochromic polymers. Polymers, PTBTPh and PTBTTh, have multi-colored oxidation states and easily accessible n-doped states, which allowed us to achieve transmissive films in a low working potential. Electrochemical and spectral results showed that both polymers are potential materials for electrochromic display devices.