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Synthesis of nano-AgI arrays and their optical properties

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Abstract

Nano-AgI arrays were synthesized by electrochemical double liquor deposition in ordered porous alumina membrane. On the basis of the analysis of x-ray diffraction patterns, the assembly of nano-AgI/Al2O3 is a mixture of a cubic zinc blende type γ–AgI and a hexagonal wurtzite type β–AgI. The visible–ultraviolet optical absorption measuring showed that the assembly only had an absorption edge at 2.82 eV and exhibited the optical features of a semiconductor with a direct band gap. The absorption edge of the assembly was shifted to a shorter wavelength compared with pure γ–AgI and a longer wavelength compared with pure β–AgI. We believed that the change of the absorption edge of the assembly is due to the mixture of γ–AgI and β–AgI.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, University of Science and Technology of China, 230026, Hefei, People’s Republic of China

    Yinhai Wang, Jimei Mo, Weili Cai & Lianzeng Yao

  2. Institute of Solid State Physics, Chinese Academy of Science, 230031, Hefei, People’s Republic of China

    Lide Zhang

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  1. Yinhai Wang
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  2. Jimei Mo
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  3. Weili Cai
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  4. Lianzeng Yao
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  5. Lide Zhang
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Correspondence to Jimei Mo.

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Wang, Y., Mo, J., Cai, W. et al. Synthesis of nano-AgI arrays and their optical properties. Journal of Materials Research 16, 990–992 (2001). https://doi.org/10.1557/JMR.2001.0139

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  • DOI: https://doi.org/10.1557/JMR.2001.0139

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