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Optical, microstructural, vibrational and theoretical studies of p-type SrCu2O2 and BaCu2O2 transparent conductive oxides
Author(s): J. Even; L. Pedesseau; M. Modreanu; G. Huyberechts; B. Servet; Guy Garry; O. Chaix-Pluchery; O. Durand
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Paper Abstract

Transparent conducting metal oxides (TCO) are unusual semiconducting materials displaying transparency to visible light. TCO materials are used for electrostatic shielding, antistatic screens, transparent heating devices, solar cells and even organic light emitting diodes. However, most TCOs are n-type, while p-type TCOs are scarce. SrCu2O2 is a leading candidate as a p-type transparent conductive oxide. In this paper, we report theoretical calculations and experimental studies on the vibrational, optical and microstructural properties of both bulk and thin films of polycrystalline undoped SrCu2O2 obtained by pulsed laser deposition (PLD). Barium doping of the SrCu2O2 by substitution of Sr atoms is also reported. The simulated crystal structures of both SrCu2O2 and BaCu2O2 materials, obtained through a state-of-the-art implementation of the Density functional theory, are compared with experimental X-ray diffraction data of undoped and Ba-doped SrCu2O2 bulk materials. Raman spectra of both SCO and BCO materials are simulated from the derivatives of the dielectric susceptibility and a symmetry analysis of the optical phonon eigenvectors at the Brillouin zone center is proposed. Good agreement with Raman scattering experimental results is demonstrated.

Paper Details

Date Published: 18 March 2013
PDF: 8 pages
Proc. SPIE 8626, Oxide-based Materials and Devices IV, 86261Y (18 March 2013); doi: 10.1117/12.2014328
Show Author Affiliations
J. Even, Institut National des Sciences Appliquées de Rennes, CNRS (France)
L. Pedesseau, Institut National des Sciences Appliquées de Rennes, CNRS (France)
M. Modreanu, Tyndall National Institute (Ireland)
G. Huyberechts, FLAMAC (Belgium)
B. Servet, Thales Research & Technology (France)
Guy Garry, Thales Research & Technology (France)
O. Chaix-Pluchery, Institut National Polytechnique de Grenoble (France)
O. Durand, Institut National des Sciences Appliquées de Rennes, CNRS (France)

Published in SPIE Proceedings Vol. 8626:
Oxide-based Materials and Devices IV
Ferechteh Hosseini Teherani; David C. Look; David J. Rogers, Editor(s)

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