Tuning optical properties of transparent conducting barium stannate by dimensional reduction

Journal Article · Thu Jan 01 00:00:00 EST 2015 · APL materials

DOI:https://doi.org/10.1063/1.4906785· OSTI ID:22415236

Li, Yuwei ^[1]; Zhang, Lijun ^[2]; Ma, Yanming ^[1]; Singh, David J. ^[3]

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1. State Key Lab of Superhard Materials, Jilin University, 130012 Changchun (China)
2. College of Materials Science and Engineering, Jilin University, 130012 Changchun (China)
3. Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6056 (United States)

We report calculations of the electronic structure and optical properties of doped n-type perovskite BaSnO{sub 3} and layered perovskites. While doped BaSnO{sub 3} retains its transparency for energies below the valence to conduction band onset, the doped layered compounds exhibit below band edge optical conductivity due to transitions from the lowest conduction band. This gives absorption in the visible for Ba{sub 2}SnO{sub 4}. Thus, it is important to minimize this phase in transparent conducting oxide (TCO) films. Ba{sub 3}Sn{sub 2}O{sub 7} and Ba{sub 4}Sn{sub 3}O{sub 10} have strong transitions only in the red and infrared, respectively. Thus, there may be opportunities for using these as wavelength filtering TCO.

• OSTI ID: 22415236
• Journal Information: APL materials, Vol. 3, Issue 1; Other Information: (c) 2015 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 2166-532X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ABSORPTION
BARIUM COMPOUNDS
CUBIC LATTICES
DOPED MATERIALS
ELECTRONIC STRUCTURE
FILMS
FILTERS
N-TYPE CONDUCTORS
OPACITY
PEROVSKITE
REDUCTION
STANNATES
VALENCE