Very-low-bandgap metallopolyynes of platinum with a cyclopentadithiophenone ring for organic solar cells absorbing down to the near-infrared spectral regiona

Xing Zhu Wang, Qiwei Wang, Lei Yan, Wai Yeung Wong, Kai Yin Cheung, Annie Ng, Aleksandra B. Djurišić, Wai Kin Chan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

56 Citations (Scopus)


(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. KGaA.
Original languageEnglish
Pages (from-to)861-867
Number of pages7
JournalMacromolecular Rapid Communications
Issue number9-10
Publication statusPublished - 12 May 2010
Externally publishedYes


  • Conjugated polymers
  • Crystal structure
  • Cyclopentadithiophenone
  • Donor-acceptor compounds
  • Metallopolymers
  • Platinum(ii) polyynes
  • Solar cells

ASJC Scopus subject areas

  • Organic Chemistry
  • Polymers and Plastics
  • Materials Chemistry

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