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以钛酸四丁酯为前驱物,冰醋酸为水解抑制剂,浓硝酸为胶溶剂,结合溶胶-凝胶与水热处理法成功制备了具有高比表面积的纳米二氧化钛胶体.除水、酸后,浓缩并添加有机粘结剂制成了纳米TiO2浆料.刷制多孔电极并组成电池后测试了其光电特性.调整胶溶剂-浓硝酸的添加量,制备了具有不同颗粒大小、晶型、比表面积的TiO2纳米颗粒.为了提高多孔薄膜的光散射效应,在浆料中添加了400 nm TiO2粉体,研究了其掺入量对电池特性的影响.结果表明,当硝酸加入量为 1 mL、掺入20%大颗粒TiO2时,制备的电池效率达到4.19%(Jsc=8.32 mA/cm2, Voc=0.76 V, FF=66.31%).

参考文献

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[2] Hyung-Jun Koo;Kyungkon Kim;Nam-Gyu Park;Suyoung Hwang;Chanmoo Park;Chulhee Kim .Fabrication of heterosensitizer-junction dye-sensitized solar cells[J].Applied physics letters,2008(14):142103-1-142103-3-0.
[3] Gao FF;Wang Y;Zhang J;Shi D;Wang MK;Humphry-Baker R;Wang P;Zakeeruddin SM;Gratzel M .A new heteroleptic ruthenium sensitizer enhances the absorptivity of mesoporous titania film for a high efficiency dye-sensitized solar cell[J].Chemical communications,2008(23):2635-2637.
[4] 胡林华,戴松元,王孔嘉.纳米TiO2多孔膜的微结构对染料敏化纳米薄膜太阳电池性能的影响[J].物理学报,2005(04):1914-1918.
[5] Moon-Sung Kang;Kwang-Soon Ahn;Ji-Won Lee .Quasi-solid-state dye-sensitized solar cells employing ternary component polymer-gel electrolytes[J].Journal of Power Sources,2008(2):896-901.
[6] Jing Zhang;Ying Yang;Sujuan Wu;Sheng Xu;Conghua Zhou;Hao Hu;Bolei Chen;Hongwei Han;Xingzhong Zhao .Improved photovoltage and performance by aminosilane-modified PEO/P(VDF-HFP) composite polymer electrolyte dye-sensitized solar cells[J].Electrochimica Acta,2008(16):5415-5422.
[7] 林原,肖绪瑞,张东社,谢普会,张宝文.TiO2纳晶多孔薄膜的光散射特性[J].科学通报,2002(15):1145-1147.
[8] Barnard AS;Curtiss LA .Prediction of TiO2 nanoparticle phase and shape transitions controlled by surface chemistry[J].Nano letters,2005(7):1261-1266.
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