Title of article
Optical absorption properties of PB5GEO4(VO4)2 single crystals
Author/Authors
Gospodinov، نويسنده , , M. and Petrova، نويسنده , , D. and Sveshtarov، نويسنده , , P. and Marinova، نويسنده , , V.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1996
Pages
5
From page
1001
To page
1005
Abstract
Thermal and pulling conditions have been optimized in a laboratory Czochralski apparatus to yield optically homogeneous crystals of hexagonal Pb5GeO4(VO4)2. The wavelength dependence of absorption coefficient was calculated from transmission and reflection measurements in the visible region. A hypothesis regarding the zone structure in connection to the fundamental absorption edge was raised and the bandgap width corresponding to indirect transition at room temperature was determined from the α12-hv curve.
Keywords
A. Oxides , A. Optical materials , B. Crystal growth , D. optical properties.
Journal title
Materials Research Bulletin
Serial Year
1996
Journal title
Materials Research Bulletin
Record number
2093271
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