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Low temperature thermopower and electrical conductivity in highly conductive CuInO2 thin films

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Title Low temperature thermopower and electrical conductivity in highly conductive CuInO2 thin films
 
Creator NAIR, BG
OKRAM, GS
NADUVATH, J
SHRIPATHI, T
FATIMA, A
PATEL, T
JACOB, R
KEERTHI, K
REMILLARD, SK
PHILIP, RR
 
Subject PULSED-LASER DEPOSITION
NOBLE METAL OXIDES
DELAFOSSITE STRUCTURE
TRANSPARENT CONDUCTORS
ELECTRONIC-STRUCTURE
SINGLE-CRYSTALS
BIPOLAR CUINO2
FABRICATION
SEMICONDUCTORS
CHEMISTRY
 
Description This is the first report on the detailed study on low temperature (6-300 K) electrical conductivity and Seebeck coefficient on copper indium oxide polycrystalline thin films deposited on soda lime glass substrates by a reactive evaporation method. These films, characterized using various experimental techniques, show the highest electrical conductivity (20 to 125 S cm(-1)) reported to date as well as nand p-type conductivity. The electrical conductivity mechanisms, based on Mott's, Seto's and Arrhenius models, in different temperature regimes, comprise of variable range hopping, grain boundary effect and activated thermal conduction. Most interestingly, the thin films manifest a high thermoelectric power factor and absorption in the UV region, indicating their potential in thermoelectric and UV energy conversion device fabrication, respectively.
 
Publisher ROYAL SOC CHEMISTRY
 
Date 2014-12-29T04:49:06Z
2014-12-29T04:49:06Z
2014
 
Type Article
 
Identifier JOURNAL OF MATERIALS CHEMISTRY C, 2(33)6765-6772
2050-7526
2050-7534
http://dx.doi.org/10.1039/c4tc01208a
http://dspace.library.iitb.ac.in/jspui/handle/100/17117
 
Language English