Department of Chemistry
Metal-free and metallated polymers: properties and photovoltaic performance
We have studied the properties of organic and organometallic polymers based on a similar chemical structure to elucidate the influence of the metal center on the optical and electronic properties of the polymers as well as their photovoltaic performance. Detailed characterization of the optical properties of both polymers is performed and film morphology and photovoltaic performance are compared. Metal-containing polymers exhibit red-shifted absorption and under optimal processing conditions exhibit different film morphology compared with the metal-free ones. Our results indicate that organometallic polymers represent a promising class of compounds for improved performance in photovoltaic cells. Full Paper: Optical and photovoltaic properties of Pt-containing (P1) and metal-free (P1 MF) polymers with similar structures are investigated (see Figure). It is found that incorporation of metal results not only in an additional absorption band but also results in changes in the film morphology and phase separation, and hence a significant improvement in the photovoltaic performance. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Alkyne, Metallopolymer, Photovoltaics, Solar cell, Transition metal
Source Publication Title
Macromolecular Chemistry and Physics
Ng, Annie, Cheuk-Lam Ho, Man Kin Fung, Ye Chuan Sun, Shu-Yan Shao, Ying-Ying Fu, Alan Man Ching Ng, Chi Ho Li, Wai Kei Cheung, Yu Hang Leung, Aleksandra B. Djurišić, Qiwei Wang, Ze He, Xingzhu Wang, Wai-Kin Chan, Zhi-Yuan Xie, Juan Antonio Zapien, Chap Hang To, and Wai-Yeung Wong. "Metal-free and metallated polymers: properties and photovoltaic performance." Macromolecular Chemistry and Physics 213.13 (2012): 1300-1310.