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核壳基H_3PW_(12)O_(40)@TiO_2复合膜的制备及其光电性质

Preparation and Photo-Electric Particles of Core-Shell H_3PW_(12)O_(40)@TiO_2 Composite Film
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摘要 以聚苯乙烯(PS)为模板,采用模板法成功制备了新型核壳基H3PW12O40@TiO2复合太阳能电极材料.采用SEM、TEM以及XRD对制得的太阳能电极材料进行形貌、结构的表征,并测量了4种DSSC的开路电压和短路电流.结果表明:H3PW12O40@TiO2复合粒子的粒径为500 nm,复合粒子中的TiO2为锐钛矿结构,H3PW12O40仍保持Keggin结构.并且测得了稳定的开路电压和短路电流,表明H3PW12O40@TiO2复合薄膜电极材料对电解质、染料以及对电极具有良好的适应性,为进一步开发DSSC打下一个良好的基础. A novel,simple and fast approach is developed for the synthesis of anatase TiO2 microcapsules with H3PW12O40 inside by using a polystyrene-bead template.The morphology and structure of the TiO2@H3PW12O40 were characterized by scanning electron microscopy （SEM）,transmission electron microscopy （TEM）,X-ray diffraction （XRD） and UV-Vis spectra.The composite microspheres were well dispersed,and the TiO2was anatase with H3PW12O4inside keeping Keggin structure.Furthermore,a dye-sensitized solar cell （DSSC） is prepared using an electrode of the TiO2@H3PW12O40 composite,and the photovoltaic performance is examined under simulated sunlight.It is indicated that the photo-electric activity of the TiO2@H3PW12O40 composite electrode has well adaptability.
作者 王炜 王苗苗 于洪全 周乐 薛钰芝
机构地区 大连交通大学环境科学与工程学院 大连交通大学材料科学与工程学院
出处 《大连交通大学学报》 CAS 2009年第6期46-49,共4页 Journal of Dalian Jiaotong University
关键词 核壳结构 H3PW12O40@TiO2复合粒子 太阳能电池 core-shell structure H3PW12O40@ TiO2composite solar cell
分类号 TB383.2 [一般工业技术—材料科学与工程]
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参考文献11

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大连交通大学学报
2009年 第6期

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