Thin ZnO nanocrystalline films for efficient quasi-solid state electrolyte quantum dot sensitized solar cells
Thin ZnO nanocrystalline films for efficient quasi-solid state electrolyte quantum dot sensitized solar cells
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DOI：
10.1016/j.jpowsour.2012.07.034
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发表时间：
2012-12
影响因子：
9.2
通讯作者：
Dimitrios Karageorgopoulos;E. Stathatos;E. Vitoratos
中科院分区：
文献类型：
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作者：
Dimitrios Karageorgopoulos;E. Stathatos;E. Vitoratos
以氨基聚丙烯齐聚物和锌前驱体为原料，采用一种新的方法制备了ZnO纳米晶透明薄膜。当胺与乙酸锌起始材料的乙酸酯基团反应时，聚丙烯低聚物充当氧化物形成的模板。不同的ZnO薄膜的结构特性，实现了不同的低聚物在起始溶液中的量。球形聚集或单分散颗粒形成的平均尺寸范围从10至30 nm。该薄膜被用于使用CdS和CdSe两者的量子点敏化太阳能电池的构造中。第一次应用准固态电解质，成功的最大总效率为4.5%的情况下，聚集的颗粒，这可能是作为散射中心。准固态电解质是具有SiO2边缘基团的混合有机-无机材料，而在用于多硫化物氧化还原对的主体电解质的制备的任何步骤中不使用水。
Thin transparent ZnO nanocrystalline films are prepared through a novel facile method based on an amino double edged polypropylene oligomer and zinc precursor. While amines were reacted with acetate groups of zinc acetate starting material, the polypropylene oligomers acted as template for the oxide formation. Different structural properties of the ZnO films were achieved varying the quantity of the oligomer in the starting solution. Spherical aggregated or monodispersed particles were formed with average sizes ranging from 10 to 30 nm. The films were employed in the construction of quantum dot sensitized solar cells using both CdS and CdSe. For first time a quasi solid state electrolyte was applied succeeding a maximum overall efficiency of 4.5% in the case of aggregated particles which could probably act as scattering centers. The quasi solid state electrolyte was a hybrid organic–inorganic material with SiO2edged groups while no water was used in any step of preparation of the host electrolyte for a polysulfide redox couple.