Preparation of Nanocrystalline ZnO/TiO_2 FIilm and Its Application to Dye-Sensitized Solar Cells
Preparation of Nanocrystalline ZnO/TiO_2 FIilm and Its Application to Dye-Sensitized Solar Cells
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纳米晶ZnO/TiO_2薄膜的制备及其在染料敏化太阳能电池中的应用
DOI：
10.1142/s1793604712600065
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发表时间：
2012
期刊：
影响因子：
--
通讯作者：
J. Hojo
中科院分区：
文献类型：
--
作者：
H. Tong;M. Inada;Y. Tanaka;N. Enomoto;J. Hojo
以溶胶-凝胶法制备的ZnO/TiO 2纳米颗粒（NPs）为电极，在ZnO纳米棒阵列表面包覆纳米TiO 2颗粒，制备染料敏化太阳能电池（DSSC）.在ZnO阵列中加入TiO 2溶胶后，电池性能有所提高，但电池效率不高。通过在ZnO阵列表面涂覆TiO 2浆料，进一步提高了电池效率。四乙基氢氧化铵表面活性剂是有效的控制溶胶和浆料之间的TiO 2纳米粒子悬浮。TiO 2溶胶或浆料在ZnO阵列中的渗透是重要的，特别是在长纳米棒阵列中。由于TiO 2溶胶在煅烧过程中收缩得更多，因此TiO 2浆料比TiO 2溶胶对ZnO/TiO 2电极电池性能的提高幅度更大。
Dye-sensitized solar cells (DSSCs) were built by using ZnO/TiO2films as electrodes consisting of ZnO nanorod arrays coated with TiO2nanoparticles (NPs) in sol or slurry form prepared by sol–gel methods. The addition of TiO2sol to ZnO arrays resulted in an improvement of cell performance, but the cell efficiency was not high. The cell efficiency was more improved by coating of ZnO arrays with TiO2slurry. The tetraethylammonium hydroxide surfactant was effective to control TiO2NPs suspension between sol and slurry. The penetration of TiO2sol or slurry into ZnO array was important, especially in the long nanorod array. The cell performance of ZnO/TiO2electrode increased more by TiO2slurry than by TiO2sol because TiO2sol shrank more during calcination.