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Spectroelectrochemical and Photovoltaic Characterization of a Solution‐Processable n‐and‐p Type Dopable Pyrrole‐Bearing Conjugated Polymer
Author(s) -
Baran Derya,
Balan Abidin,
Esteban BeatrizMeana,
Neugebauer Helmut,
Sariciftci Niyazi Serdar,
Toppare Levent
Publication year - 2010
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201000371
Subject(s) - electrochromism , conjugated system , polymer , materials science , electrochemistry , organic solar cell , photovoltaic system , homo/lumo , photovoltaics , polymer chemistry , acceptor , photochemistry , pyrrole , conductive polymer , chemical engineering , chemistry , organic chemistry , electrode , molecule , composite material , physics , engineering , biology , condensed matter physics , ecology
D‐A‐D‐type polymers are of high interest in the field of photovoltaics and electrochromism. In this study we report the synthesis and electrochemical properties of PPyBT along with its photophysical properties and photovoltaic performance. PPyBT is soluble in common organic solvents and both n‐ and p‐type dopable, which is a desired property for conjugated polymers. During electrochemistry studies, the onset potentials of the polymer were determined as +0.2 V for oxidation and −1.4 V for reduction. Using these values, HOMO and LUMO energy levels were calculated. The photovoltaic properties of PPyBT were also studied. PL studies showed that there is a charge transfer between PPyBT (donor) and PCBM (acceptor).