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Crystal Research and Technology |
Cryst. Res. Technol. 42, 50 (2007) - Abstract -
Anisotropy of the optical absorption in layered single crystals of MoRe0.001Se1.999
Mihir M. Vora and Aditya M. Vora
Parmeshwari 165, Vijaynagar Area, Hospital Road, Bhuj – Kutch, 370 001, Gujarat, India
| Keywords | optical materials and properties, solar energy materials, energy band gap, Re doped MoSe2 single crystal |
| PACS | 72.90.+y, 81.10.Bk |
| DOI | 10.1002/crat.200610769 |
Energy gap of MoRe0.001Se1.999 single crystal has been determined by fundamental absorption methods. The incident light was polarized along c-axis of the crystals. The interpretion of the data is given within frameworks of two and three dimensional models. Both direct and indirect transitions are involved in the absorption process. The indirect transition was found to be allowed with two phonons participating in the process. The three dimensional model could be used to describe the optical properties of the single crystal. The energy gaps depend upon the amount of the intercalating Re material, which show the anisotropy of the chemical bonds.
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