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Study on preparation and structural characteristics of ZnFe2O4 nanocrystalline

Authors Cao, F.
Li, X.Y.
Qu, Z.P.
Jin, H.
Quan, X.
Chen, G.H. View this author's profile
Issue Date 2007
Source Gongneng Cailiao/Journal of Functional Materials , v. 38, (1), 2007
Summary In this paper, zinc ferrite nanocrystallines are prepared by the coincided coprecipitation and the hydro-thermal method. XRD, DRS, FT-IR and TEM techniques have been used to characterize the structural and spectral features of the obtained samples, whereas surface photovoltage characteristics of the nanocrystallines are deeply investigated by the surface photovoltage spectroscopy (SPS). The results show that the ZnFe2O4 nanocrystallines with spinel structure have a narrower energy-gap, and the particles are uniform with narrow size distribution. The SPS results indicate that the ZnFe2O4 nanocrystallines show obvious surface and quantum confined effect with a certain capability for capturing the electron, and the external electric field is proven to have a strong effect on the photovoltaic response while applying the external positive electric field. It is found that when a negative electric field reached a certain value, the external electric field of photovoltaic response will prevail.
ISSN 1001-9731
Language English
Format Article
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