title: Very-low-bandgap metallopolyynes of platinum with a cyclopentadithiophenone ring for organic solar cells absorbing down to the near-infrared spectral region.
abstract: Two solution-processable metallopolyynes of platinum functionalized with the electron-deficient 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.
authors: Department of Chemistry and Centre for Advanced Luminescence Materials, Hong Kong Baptist University, Waterloo Road, Kowloon Tong, Hong Kong, P.R. China; College of Chemistry and Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, Xiangtan University, Xiangtan 411105, Hunan Province, P. R. China.
authors: Xing-Zhu
authors: XZ
authors: Wang
authors: Qiwei
authors: Q
authors: Wang
authors: Lei
authors: L
authors: Yan
authors: Wai-Yeung
authors: WY
authors: Wong
authors: Kai-Yin
authors: KY
authors: Cheung
authors: Annie
authors: A
authors: Ng
authors: Aleksandra B
authors: AB
authors: Djurišić
authors: Wai-Kin
authors: WK
authors: Chan