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Processable Multipurpose Conjugated Polymer for Electrochromic and Photovoltaic Applications

Baran, Derya
Balan, Abidin
Celebi, Selin
Esteban, Beatriz Meana
Neugebauer, Helmut
Sariciftci, N. Serdar
Toppare, Levent Kamil
A benzotriazole and 3-hexylthiophene (3HT) bearing a donor acceptor donor (D-A-D) type conjugated polymer (PHTBT) was synthesized. The polymer is both p and n-dopable, fluorescent, soluble in common organic solvents, and processable. Electrochemical and spectroelectrochemical characterization of PHTBT and its photovoltaic performance in organic bulk heterojunction (BHJ) solar cells (SC) have been measured. Using PHTBT as donor material in BHJ solar cells resulted in increased open circuit voltage (V-oc) up to 0.85 V.