Very-Low-Bandgap Metallopolyynes of Platinum with a Cyclopentadithiophenone Ring for Organic Solar Cells Absorbing Down to the Near-Infrared Spectral Region
✍ Scribed by Xing-Zhu Wang; Qiwei Wang; Lei Yan; Wai-Yeung Wong; Kai-Yin Cheung; Annie Ng; Aleksandra B. Djurišić; Wai-Kin Chan
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 272 KB
- Volume
- 31
- Category
- Article
- ISSN
- 1022-1336
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✦ Synopsis
Abstract
Two solution‐processable metallopolyynes of platinum functionalized with the electron‐deficient 4__H__‐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.
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