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Citation: Wang De-Jun, Cui Yi, Zhang Jie, Li Tie-Jin, Dong Xiang-Ting, Hong Guang-Yan. Photovoltaic Properties and Quantum Size Effect in Nanocrystalline CeO₂[J]. Acta Physico-Chimica Sinica, ;1995, 11(09): 812-817. doi: 10.3866/PKU.WHXB19950910 shu

Photovoltaic Properties and Quantum Size Effect in Nanocrystalline CeO₂

1.
Department of Chemistry,Jilin University,Changchun 130023;Institute of Applied Chemistry,Academia Sinica,Changchun 130022

Received Date: 8 November 1994
Available Online: 15 September 1995

Different size nanocrystallines CeO2 were synthesized and their diffuse reflectance absorption spectra have been measured. The absorption band in the region from 300 to 450 nm was assigned to the O2p-Ce 4f transition. It was found that a strongly red-shifted broad continuum of the absorption band occured as the decrease of the partical size. We have also measured the surface photovoltage as function of wavelength by SPS technique. And the absorption band was resolved to two peaks with different photovoltaic properties. Photovoltaic quantum size effect was observed by FMSPS measurement.
- Nanocrystalline,
- CeO₂,
- Surface photovoltage,
- Quantum size effect
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Photovoltaic Properties and Quantum Size Effect in Nanocrystalline CeO2

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Photovoltaic Properties and Quantum Size Effect in Nanocrystalline CeO₂