https://scholars.lib.ntu.edu.tw/handle/123456789/384680
標題: | Novel polymer gel electrolytes with poly(oxyethylene)-amidoacid microstructures for highly efficient quasi-solid-state dye-sensitized solar cells | 作者: | Shen, S.-Y. Dong, R.-X. Shih, P.-T. Ho, K.-C. Lin, J.-J. JIANG-JEN LIN KUO-CHUAN HO |
關鍵字: | optical properties; photovoltaic; polymer | 公開日期: | 2014 | 卷: | 1667 | 來源出版物: | Materials Research Society Symposium | 摘要: | A cross-linked copolymer was designed and synthesized bythe imidation of poly(oxyethylene)-diamine and 4,4'-oxydiphthalic anhydride, and followed by a late-stage curing to generate the cross-linked gels. The copolymers consisting of crosslinking sites and multiple functionalities such aspoly(oxyethylene)-segments, amido-acids, imides, and amine termini, characterized by Fourier Transform Infrared Spectroscopy. After the self-curing at 80 °C, the gel-like material enabled to absorb liquid form of electrolytesin the medium of propylene carbonate(PC), dimethylformamide(DMF),and N-methyl-2-pyrrolidone(NMP).By using a field emission scanning electronic microscope, we observed a 3D interconnected nanochannel microstructure, within which, the liquid electrolytes were absorbed. When the novel polymer gel electrolyte (PGE) was fabricated into a dye-sensitized solar cell (DSSC), an extremely high photovoltaic performance was demonstrated. The PGE, absorbed 76.7 wt% of the liquid electrolyte (soaking in the PC solution) based on the polymer's weight gave rise to a power conversion efficiency of 8.31%, superior to that (7.89%) of the DSSC with liquid electrolytes. It was further demonstrated that the cell had a long-term stabilityduring the test of 1000hat-rest at room temperature or only slightly decreasing in efficiency of 5%.This is the first time demonstration for a PGE exhibiting a higher performance than its liquid counterpart cell. The observation is ascribed to the suppression of the back electron transfer through the unique morphology of the polymer microstructures. © 2014 Materials Research Society. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-84924322598&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/384680 |
DOI: | 10.1557/opl.2014.897 | SDG/關鍵字: | Amines; Copolymerization; Copolymers; Curing; Dye-sensitized solar cells; Electrolytes; Fourier transform infrared spectroscopy; Ionic liquids; Liquids; Microstructure; Nanostructured materials; Optical properties; Organic solvents; Polyelectrolytes; Polyethylene oxides; Polymers; Propylene; Solar power generation; Solid electrolytes; Field emission scanning; N-methyl-2-pyrrolidone; Oxydiphthalic anhydrides; Photovoltaic; Photovoltaic performance; Polymer microstructures; Power conversion efficiencies; Quasi-Solid-State dye-sensitized solar cells; Solar cells |
顯示於: | 高分子科學與工程學研究所 |
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