Perovskite Sr-Doped LaCrO3 as a New p-Type Transparent Conducting Oxide

Kelvin H L Zhang; Yingge Du; Alexandra Papadogianni; Oliver Bierwagen; Shawn Sallis; Louis F J Piper; Mark E Bowden; Vaithiyalingam Shutthanandan; Peter V Sushko; Scott A Chambers

doi:10.1002/adma.201501959

Perovskite Sr-Doped LaCrO3 as a New p-Type Transparent Conducting Oxide

Adv Mater. 2015 Sep 16;27(35):5191-5. doi: 10.1002/adma.201501959. Epub 2015 Aug 6.

Affiliations

¹ Physical Sciences Division, Fundamental and Computational Sciences Directorate, Pacific Northwest National Laboratory, Richland, WA, 99352, USA.
² Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, WA, 99352, USA.
³ Paul-Drude-Institut für Festkörperelektronik, Hausvogteiplatz 5-7, DE-10117, Berlin, Germany.
⁴ Materials Science and Engineering, Binghamton University, Binghamton, New York, 13902, USA.

PMID: 26248327
DOI: 10.1002/adma.201501959

Abstract

Epitaxial La1-x Srx CrO3 deposited on SrTiO3 (001) is shown to be a p-type transparent conducting oxide with competitive figures of merit and a cubic perovskite structure, facilitating integration into oxide electronics. Holes in the Cr 3d t2g bands play a critical role in enhancing p-type conductivity, while transparency to visible light is maintained because low-lying d-d transitions arising from hole doping are dipole forbidden.

Keywords: complex oxides; p-type semiconductors; transparent conducting oxides.