https://scholars.lib.ntu.edu.tw/handle/123456789/467521
標題: | Synthesis of di(ethylene glycol)-functionalized diketopyrrolopyrrole derivative-based side chain-conjugated polymers for bulk heterojunction solar cells | 作者: | Lee, R.-H. Yang, L.-C. Wu, J.-Y. Jeng, R.-J. RU-JONG JENG |
公開日期: | 2017 | 卷: | 7 | 期: | 2 | 起(迄)頁: | 1016-1025 | 來源出版物: | RSC Advances | 摘要: | Polythiophenes (PTs) featuring di(ethylene glycol)-substituted 2,5-thienyl diketopyrrolopyrrole (DG-TDPP) moieties as conjugated units in the polymer backbone and tert-butyl-substituted triphenylamine (tTPA)-containing moieties as pendant units have been synthesized through Stille coupling. Incorporating the electron-deficient DG-TDPP moieties within the polymer backbone and appending the tTPA units promoted charge balance and efficient conjugation within the extended conjugated frameworks of the polymers, resulting in lower band gap energies and red-shifting the maximum UV-Vis absorption wavelength. The influence of the DG-TDPP content on the optical, electrochemical, and photovoltaic (PV) properties of the polymers has been studied. Incorporating a suitable content of DG-TDPP moieties in the polymer backbone enhanced the solar absorption ability and conjugation length of the PTs. The PV properties of bulk-heterojunction solar cells based on PT/fullerene derivatives improved after incorporating DG-TDPP units in the backbones of the side chain-conjugated PTs. © The Royal Society of Chemistry 2017. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/467521 | DOI: | 10.1039/c6ra26245g | SDG/關鍵字: | Chains; Energy gap; Ethylene; Ethylene glycol; Heterojunctions; Organic polymers; Polymer solar cells; Polyols; Solar cells; Sulfur compounds; Bulk heterojunction solar cells; Conjugation length; Diketopyrrolopyrroles; Electron-deficient; Polymer backbones; Side chain conjugated; Side chain conjugated polymers; UV-vis absorptions; Conjugated polymers |
顯示於: | 高分子科學與工程學研究所 |
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