| 水热反应温度对碱性条件下TiO2纳米晶生长动力学及其光电性能的影响 |
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| 引用本文： | 王丽丽,杨兵初,周聪华,童思超,梁丽杰.水热反应温度对碱性条件下TiO2纳米晶生长动力学及其光电性能的影响[J].人工晶体学报,2011,40(4):867-871. |
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| 作者姓名： | 王丽丽 杨兵初 周聪华 童思超 梁丽杰 |
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| 作者单位： | 中南大学物理科学与技术学院,长沙,410083 |
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| 摘 要： | 以钛酸丁酯为原料,在碱性条件下水热合成了锐钛矿相TiO2纳米晶.采用X射线衍射仪、比表面积测试仪、扫描电子显微镜等方法对纳米晶粒的晶体结构、比表面积以及光阳极的表面形貌分别进行表征,研究水热反应温度对TiO2纳米晶生长动力学过程的影响规律.结果表明:随着温度的升高,锐钛矿相纳米晶的平均晶粒尺寸先增大后减小.光电转换性能测试表明,电池的光电转换性能随着水热反应温度的升高而增大,在220℃时获得最大光电转换效率4.05;( 1sun,100 mW/cm2).并分析了水热反应温度对碱性条件下TiO2纳米晶粒的生长动力学过程和电池光电转换性能的影响机制.
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| 关 键 词： | TiO2纳米晶 水热法 染料敏化太阳能电池 |
Effect of Hydrothermal Temperatue on Growth Dynamics and Photoelectric Performance of TiO_2 Nanocrystallites under Alkaline Condition |
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| WANG Li-li,YANG Bing-chu,ZHOU Cong-hua,TONG Si-chao,LIANG Li-jie.Effect of Hydrothermal Temperatue on Growth Dynamics and Photoelectric Performance of TiO_2 Nanocrystallites under Alkaline Condition[J].Journal of Synthetic Crystals,2011,40(4):867-871. |
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| Authors: | WANG Li-li YANG Bing-chu ZHOU Cong-hua TONG Si-chao LIANG Li-jie |
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| Institution: | WANG Li-li,YANG Bing-chu,ZHOU Cong-hua,TONG Si-chao,LIANG Li-jie (School of Physics Science and Technology,Central South University,Changsha 410083,China) |
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| Abstract: | Anatase nanocrystallites were synthesized via hydrothermal reactions following a alkaline route using tetrabutyl titanate as raw material.Crystallographic structure of the nanocrystalline was characterized by X-ray diffraction,while surface area of TiO2 samples and surface morphology of the films were studied using BET(surface area analyser) and scanning electron microscopy respectively.The influence of temperature on crystalline growth dynamics was studied.The results show that the average particle size of... |
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| Keywords: | TiO2 nanocrystalline hydrothermal method dye-sensitized solar cells |
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