Photovoltaic properties of polymer/Fe2O3/polymer heterostructured microspheres

被引：40

作者：

Du, H ^{[1
]}

Cao, Y ^{[1
]}

Bai, YB ^{[1
]}

Zhang, P ^{[1
]}

Qian, XM ^{[1
]}

Wang, DJ ^{[1
]}

Li, TJ ^{[1
]}

Tang, XY ^{[1
]}

机构：

[1] Jilin Univ, Dept Chem, Changchun 130023, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 1998年 / 102卷 / 13期

关键词：

D O I：

10.1021/jp973056x

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The Fe2O3 particles with diameters of 3-5 nm were encapsulated between the core and the shell of polymer via emulsion polymerization into the heterostructured microspheres, which were observed through TEM images. The photovoltaic response of the composites, which was studied by the electric-field-induced surface-photovoltage-spectroscopy technique, appeared only if there was an external electric field (EEF) and its decay was much slower than that of Fe2O3 nanoparticles themselves. A reasonable energy band model was supposed to explain this phenomena and indicated that the polymer shell acted as an electric-passivation layer of the semiconductor Fe2O3 particles. The charge-separation process in the structure was also analyzed with this model.

引用

页码：2329 / 2332

页数：4

共 19 条

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