Perovskite Sr-doped LaCrO3 as a new p-type transparent conducting oxide

Journal Article · Wed Sep 16 00:00:00 EDT 2015 · Advanced Materials (Online)

DOI:https://doi.org/10.1002/adma.201501959· OSTI ID:1243292

Zhang, Hongliang; Du, Yingge; Papadogianni, Alexandra; Bierwagen, Oliver; Sallis, Shawn; Piper, Louis F. J.; Bowden, Mark E.; Shutthanandan, V.; Sushko, Petr; Chambers, Scott A.

Transparent conducting oxides (TCOs) constitute a unique class of materials which combine the seemingly mutually exclusive properties of electrical conductivity and optical transparency in a single material. TCOs are useful for a wide range of applications including solar cells, displays, light emitting diodes and transparent electronics. Simple post-transition metal oxides such as ZnO, In2O3 and SnO2 are wide gap insulators in which the ionic character generates an oxygen 2p-derived valence band (VB) and a metal s-derived conduction band (CB), resulting in large optical band gaps (>3.0 eV) and excellent n-type conductivity when donor doped. In contrast, the development of efficient p-type TCOs remains a global materials challenge. Converting n-type oxides to p-type analogs by acceptor doping is extremely difficult and these materials display poor conductivity.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1243292
• Report Number(s): PNNL-SA-109679; 48341; KC0203020
• Journal Information: Advanced Materials (Online), Vol. 27, Issue 35; ISSN 1521-4095
• Country of Publication: United States
• Language: English

Related Subjects

complex oxide
p-type semiconductor
transparent conducting oxide
Environmental Molecular Sciences Laboratory