Identification of Z2- and associated Z-centres in LiF through a correlation of electrical conductivity, ITC and optical absorption measurements

1980 ◽  
Vol 41 (C6) ◽  
pp. C6-123-C6-125
Author(s):  
S. Murali Dhara Rao
Keyword(s):  
Electrical Conductivity ◽  
Optical Absorption ◽  
Absorption Measurements

scholarly journals Polaron Conduction and Optical Absorption of Amorphous Selenium Films

1974 ◽  
Vol 29 (5) ◽  
pp. 724-727 ◽  
Author(s):  
A. H. Abou El Ela
Keyword(s):  
Electrical Conductivity ◽  
Optical Absorption ◽  
Fermi Level ◽  
Temperature Dependence ◽  
Valence Band ◽  
Energy Gap ◽  
Amorphous Selenium ◽  
Experimental Results ◽  
Selenium Films ◽  
Absorption Measurements

Abstract The temperature dependence of electrical conductivity in amorphous selenium films is investigated. The experimental results show a polaronic conduction in the states near the Fermi level, in agreement with Mott’s model. Optical absorption measurements show the rate at which the valence band states fall off with energy into the energy gap.

Photoconductivity in some III–V alloys

1970 ◽  
Vol 48 (16) ◽  
pp. 1874-1878 ◽  
Author(s):  
A. E. Taylor ◽  
E. Fortin
Keyword(s):  
Electrical Conductivity ◽  
Optical Absorption ◽  
Band Gap ◽  
Low Temperatures ◽  
Room Temperature ◽  
Alloy Composition ◽  
Energy Gaps ◽  
Sensitivity Curves ◽  
Alloy Concentration ◽  
Absorption Measurements

Photoconducting properties of GaAs–InAs and GaAs–GaSb alloys were investigated at room and low temperatures. The peaks in the photoresponse were found to vary smoothly across the alloy systems. Band gap values obtained from the spectral sensitivity curves confirmed the parabolic variation of energy gaps as a function of the alloy concentration, as previously found in electrical conductivity and optical absorption measurements. The room temperature detectivity of the samples was between 2 × 105 and 8 × 106 cm (Hz)1/2 W−1 for wavelengths varying from 0.8 to 3.5 μ, depending on alloy composition.

Comment on ‘‘Optical absorption measurements of hydrogen at megabar pressures’’

1995 ◽  
Vol 52 (2) ◽  
pp. 1405-1407 ◽  
Author(s):  
Arthur L. Ruoff ◽  
Kouros Ghandehari
Keyword(s):  
Optical Absorption ◽  
Absorption Measurements
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