Structures and Optical Properties of Sm-Doped CuInTe2 Semiconductor

Xiao Meng Nie; Yong Quan Guo

doi:10.4028/www.scientific.net/AMR.1094.218

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1094Structures and Optical Properties of Sm-Doped...

Structures and Optical Properties of Sm-Doped CuInTe₂ Semiconductor

Abstract:

Since the rare earth based compounds have shown excellent properties such as luminescence and photo-electric transformation effect due to their 4f electronic structures. A novel Sm-doped CuIn_1-xSm_xTe₂ semiconducting compounds have been designed and their crystal structures, microstructures and optical properties have been investigated using X-ray diffraction(XRD), scan electron microscopy (SEM), ultraviolet and visible spectrophotometer and Raman scattering. The results reveal that the doping of samarium into CuInTe₂ (CIT) could stabilize the chalcopyrite structure, the lattice parameters shows fluctuation phenomenon with doping Sm in CIT. The SEM morphologies show that the grains tend to be agglomeration and form the column-like or the flake-like single crystals. The band gap Eg are corresponding to 1.25eV and 1.32eV before and after doping Sm with 0.1 mole into CuInTe₂. Raman scattering analysis proves that Sm significantly adjusts the atomic vibrating models, and result in the losses of some vibrating peaks. It reveals that doping of Sm into CuInTe₂ is helpful for the absorption of spectra with special frequencies.

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Periodical:

Advanced Materials Research (Volume 1094)

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218-221

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1094.218

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Online since:

March 2015

Authors:

Xiao Meng Nie, Yong Quan Guo*

Keywords:

Chalcopyrite Structure, CuIn_1-xSm_xTe₂, Semiconductor, Solar Cells

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