Department of Chemistry
Very-low-bandgap metallopolyynes of platinum with a cyclopentadithiophenone ring for organic solar cells absorbing down to the near-infrared spectral region
(Figure Presented) Two solution-processable metallopolyynes of platinum functionalized with the electrondeficient 4H-cyclopenta[2,1-b:3,4-b'] dithiophen-4-one spacer and their model molecular complexes were synthesized and developed for the applications of polymer solar cells. These metallated polymers possess extremely low bandgaps of 1.44-1.53 eV which extend toward the near-infrared (NIR) range of the solar spectrum, and represent the lowest optical bandgap yet reported for platinum(II) metallopolyynes to date. The structural flexibility, processibility, and good photovoltaic performance make cyclopentadithiophenone-containing polymers prominent candidates for NIR photovoltaic applications. © 2010 WILEY-VCH Verlag GmbH & Co. KGaA.
Conjugated polymers, Crystal structure, Cyclopentadithiophenone, Donor-acceptor compounds, Metallopolymers, Platinum(ii) polyynes, Solar cells
Source Publication Title
Macromolecular Rapid Communications
Wang, Xing-Zhu, Qiwei Wang, Lei Yan, Wai-Yeung Wong, Kai-Yin Cheung, Annie Ng, Aleksandra B. Djurišić, and Wai-Kin Chan. "Very-low-bandgap metallopolyynes of platinum with a cyclopentadithiophenone ring for organic solar cells absorbing down to the near-infrared spectral region." Macromolecular Rapid Communications 31.10-9 (2010): 861-867.