Crystal Research and Technology
Cryst. Res. Technol. 42, 186 (2007) - Abstract -

Intercalation and anisotropy of optical absorption in MoRe0.005Se1.995 single crystals

Mihir M. Vora and Aditya M. Vora

Parmeshwari 165, Vijaynagar Area, Hospital Road, Bhuj–Kutch, 370 001, Gujarat, India

Keywords optical materials, optical properties, energy band gap, MoRe0.005Se1.995 single crystal
PACS 72.90.+y, 81.10.Bk
DOI 10.1002/crat.200610794

The optical energy gap of MoRe0.005Se1.995 single crystal has been measured at room temperature near the fundamental absorption method. The incident light was polarized along c-axis of the crystals. Two and three dimensional models are adopted for generating the results. Direct as well as indirect transitions are involved in the absorption process. The indirect transition was found to be allowed with two phonons involved in the process. The three dimensional model could be used to describe the optical properties of the single crystal. of MoRe0.005Se1.995. Also, the optical energy gaps depend upon the amount of the intercalating Re material, which show the anisotropy of the chemical bonds.




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