Optical Absorption Red Shift of Capped ZnFe_(2)O_(4) Nanoparticle

袁志好; 尤为; 贾俊辉; 张立德

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Optical Absorption Red Shift of Capped ZnFe_(2)O_(4) Nanoparticle

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Nanometer-sized ZnFe_(2)O_(4) particles capped with a layer of surfactant are synthesized and their optical absorption is investigated.Such capped ZnFe_(2)O_(4) particles present a strong band edge absorption in visible region and their energy band gap is estimated to be about 1.53eV.It is also found that the capped nanoparticles have a significant red shift of optical absorption band edge in contrast with that of uncapped ZnFe_(2)O_(4) nanoparticles,which is mainly related to the trapped and self-trapped excitons absorption resulting from an interfacial dipole layer formed on the surface of ZnFe_(2)O_(4) nanoparticles.

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来源
《中国物理快报：英文版》 |1998年第7期|P.535-536|共2页
作者
袁志好; 尤为; 贾俊辉; 张立德;
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作者单位

Institute of Solid State Physics Chinese Academy of Sciences Hefei 230031;

Department of Polymer Science and Engineering University of Science and Technology of China Hefei 230026;

Institute of Solid State Physics Chinese Academy of Sciences Hefei 230031;

Institute of Solid State Physics Chinese Academy of Sciences Hefei 230031;

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原文格式 PDF
正文语种 chi
中图分类工程材料学;
关键词
nanoparticles; absorption;

Optical Absorption Red Shift of Capped ZnFe_(2)O_(4) Nanoparticle

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