从高原黑枸杞中提取染料,利用紫外-可见吸收光谱和循环伏安方法研究不同pH染料的光电化学性能,确定染料最佳pH.以石墨烯为原料制备不同含量乙基纤维素(EC)的石墨烯纳米片(GNs)对电极,用电化学阻抗、循环伏安、塔菲尔极化曲线研究不同EC含量对GNs对电极电催化性能的影响.以最佳pH染料为光敏剂,不同含量EC的GNs为对电极组装染料敏化太阳能电池在模拟太阳光下测试光电转换效率.结果表明,EC含量为10wt％时,GNs对电极有良好的电催化性.光电测试EC含量为10wt％的GNs对电极光电转换效率为0.92％,接近Pt对电极(0.99％).
参考文献
| [1] | Simon Mathew;Aswani Yella;Peng Gao.Dye-sensitized solar cells with 13% efficiency achieved through the molecular engineering of porphyrin sensitizers[J].Nature Chemistry,20143(3):242-247. |
| [2] | Michael Gratzel.The Advent of Mesoscopic Injection Solar Cells[J].Progress in photovoltaics,20065(5):429-442. |
| [3] | N.T.R.N. Kumara;Piyasiri Ekanayake;Andery Lim.Layered co-sensitization for enhancement of conversion efficiency of natural dye sensitized solar cells[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2013:186-191. |
| [4] | Kyung-Hee Park;Tae-Young Kim;Ju-Young Park.Adsorption characteristics of gardenia yellow as natural photosensitizer for dye-sensitized solar cells[J].Dyes and Pigments,20132(2):595-601. |
| [5] | Quanjun Xiang;Jiaguo Yu;Mietek Jaroniec.Graphene-based semiconductor photocatalysts[J].Chemical Society Reviews,20122(2):782-796. |
| [6] | Choi, H.;Kim, H.;Hwang, S.;Choi, W.;Jeon, M..Dye-sensitized solar cells using graphene-based carbon nano composite as counter electrode[J].Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion,20111(1):296-300. |
| [7] | Aaron Davies;Aiping Yu.Material Advancements in Supercapacitors: From Activated Carbon to Carbon Nanotube and Graphene[J].The Canadian Journal of Chemical Engineering,20116(6):1342-1357. |
| [8] | 刘奕;赵玉亮;高兆芬;姜霞;曾宇平.石墨烯纳米片的简易合成及其超级电容性能研究[J].无机材料学报,2013(6):611-615. |
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