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A New p-Type Conductive Oxide with Wide Band GAP, SrCu2O2
Published online by Cambridge University Press: 15 February 2011
Abstract
SrCu2O2 thin films were prepared onto SiO2 glass substrates by pulsed laser deposition. The film deposited in O2 atmosphere of 7×10-4 Pa at 573 K showed high optical transmission in visible and near infrared regions. The optical band gap of the film was estimated to be -3.3 eV. The dc electrical conductivity of the film was 3.8 × 10-3 Scm-1. Potassium was used for substitutional hole-doping. The dc electrical conductivity of the K-doped film at 300 K increased to 4.8 × 10-2 Scm-1. Positive sign of Seebeck and Hall coefficients demonstrated p-type conduction of the K-doped film. Hole concentration and mobility at 300 K were 6.1 × 1017 cm-3 and 0.46 cm2V-1s-1, respectively.
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- Copyright © Materials Research Society 1998
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