Morphology Affects the Stability and Surface Photovoltage of Cu2O

Shuang Xu; Song  Nuan; Chang Li Qiu

doi:10.4028/www.scientific.net/AMR.534.160

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 534Morphology Affects the Stability and Surface...

Morphology Affects the Stability and Surface Photovoltage of Cu₂O

Abstract:

The effect of morphology on the stability of Cu2O remains a great challenge. We have synthesized two types of samples in cube crystal structure with about 700 nm by a facile reduction route, which were investigated by X-ray powder diffraction (XRD), Scanning Electron Microscopy (SEM), Energy- dispersive X-ray (EDX) and surface photovoltage spectroscopy (SPS). It is noteworthy that one sample prepared using polyethylene glycol (PEG) as template was oxidized in air, but another template with glucose was stable in air. The testing results demonstrate that the differences of Cu2O morphology apparently affect its stability. In addition, we analyzed the effect of surface oxidation on the SPV signal of the two samples.

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Periodical:

Advanced Materials Research (Volume 534)

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160-163

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.534.160

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Online since:

June 2012

Authors:

Shuang Xu, Song Nuan, Chang Li Qiu

Keywords:

Morpholoy, Oxidation Reaction, Stability, Surface Photovoltage

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