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纳米晶ZnO薄膜的电化学沉积及其光电化学性能研究
  • 期刊名称:材料工程 10 (2008) 340
  • 时间:0
  • 分类:O484[理学—固体物理;理学—物理]
  • 作者机构:[1]中国科学院上海硅酸盐研究所高性能陶瓷与超微结构国家重点实验室,上海200050, [2]中国科学院研究生院,北京100049
  • 相关基金:国家自然科学基金(10576036);上海应用材料研究与发展基金(06SA07)
  • 相关项目:用于高平均功率二极管激光器的薄膜技术研究
中文摘要:

以Zn(NO3)2和曙红的混合溶液为沉积液,采用阴极电化学沉积法在ITP导电玻璃上制备了纳米多孔ZnO/曙红复合膜。该复合膜中的曙红用KOH溶液溶解脱附后得到晶粒尺寸为10~20nm的ZnO纳米多孔薄膜。XRD结果表明该薄膜为ZnO六方纤锌矿结构,EDS表明薄膜中的主要成份为Zn和O,未检测到其他杂质成分。以该薄膜为光阳极制作了太阳能电池原型器件,其开路电压为0.68V,短路电流为0.79mA/cm2,总光电转换效率为0.26%。

英文摘要:

Nanoporous ZnO films were fabricated on ITO substrate by a two-step solution approach, which involves the electrochemical deposition of nanoporous ZnO/eosin Y hybrid films and subse- quently desorption treatment to remove eosin Y molecules. Nanoporous ZnO films with grain size of 10-20nm were obtained. The X-ray diffraction pattern showed that nanoporous ZnO film had a hexa- gonal wurtzite structure, and the EDS results exhibited that the film was composed of Zn and O, and no other elements was detected. The prototype dye sensitized solar cell device utilizing the nanoporous film as photoelectrode was fabricated, exhibiting an open-circuit photovoltage of 0. 68 V, a short-cir- cuit photocurrent density of 0.79 mA/cm2, and an overall conversation efficiency of 0.26% under white light illumination.

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