| 초록 |
Recently, low band gap polymers based on DPP have been extensively studied in organic solar cells due to its planar structural features. But DPP-based copolymers showed weak absorption at medium wavelength region (400 ~ 600 nm). In order to improve the performances of the solar cells, enhancement of the absorption at medium wavelength region is necessary. To improve the absorption at medium wavelength region, we introduce third monomers such as tetrazine, benoxadiazole, and benzothiadiazole in the polymers. In this presentation, we report the electro-optical and photovoltaic properties of the copolymers. |
