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Synthesis of Main‐Chain Metallo‐Copolymers Containing Donor and Acceptor Bis‐Terpyridyl Ligands for Photovoltaic Applications
Author(s) -
Padhy Harihara,
Ramesh Mohan,
Patra Dhananjaya,
Satapathy Rudrakanta,
Pola Murali Krishna,
Chu HsuanChih,
Chu ChihWei,
Wei KungHwa,
Lin HongCheu
Publication year - 2012
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.201100752
Subject(s) - carbazole , copolymer , fluorene , photochemistry , acceptor , polymer chemistry , chemistry , electrochemistry , electron donor , absorption spectroscopy , materials science , polymer , organic chemistry , catalysis , electrode , physics , quantum mechanics , condensed matter physics
Two random (Zn II ‐based P1–P2 ) and two alternating (Ru II ‐based P3–P4 ) metallo‐copolymers containing bis‐terpyridyl ligands with various central donor (i.e., fluorene or carbazole) and acceptor (i.e., benzothiadiazole) moieties were synthesized. The effects of electron donor–acceptor interactions with metal (Zn II and Ru II ) ions on their thermal, optical, and electrochemical properties were investigated. Because of the strong ICT transitions between donor and acceptor ligands in both Zn II ‐ and Ru II ‐based metallo‐coplymers and MLCT transitions in Ru II ‐based metallo‐coplymers, the absorption spectra covered a broad range of 260–750 nm with the band gaps of 1.57–1.77 eV. In addition, the introduction of Ru II ‐based metallo‐coplymer P4 mixed with PC 60 BM as an active layer of the BHJ solar cell device exhibited the highest PCE value up to 0.90%.