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dc.contributor.authorPeelaers, Hartwin
dc.contributor.authorKioupakis, E.
dc.contributor.authorVan de Walle, C. G.
dc.identifier.citationH. Peelaers, E. Kioupakis, and C. G. Van de Walle , "Limitations of In2O3 as a transparent conducting oxide", Applied Physics Letters 115, 082105 (2019)
dc.descriptionThis article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in Appl. Phys. Lett. 115, 082105 (2019); doi: 10.1063/1.5109569 and may be found at
dc.description.abstractSn-doped In2O3 or ITO is the most widely used transparent conducting oxide. We use first-principles calculations to investigate the limitations to its transparency due to free-carrier absorption mediated by phonons or charged defects. We find that the main contribution to the phonon-assisted indirect absorption is due to emission (as opposed to absorption) of phonons, which explains why the process is relatively insensitive to temperature. The wavelength dependence of this indirect absorption process can be described by a power law. Indirect absorption mediated by charged defects or impurities is also unavoidable since doping is required to obtain conductivity. At high carrier concentrations, screening by the free carriers becomes important. We find that charged-impurity-assisted absorption becomes larger than phonon-assisted absorption for impurity concentrations above 1020 cm–3. The differences in the photon-energy dependence of the two processes can be explained by band structure effects.en_US
dc.publisherAmerican Institute of Physicsen_US
dc.rights© 2019 Author(s). Published under license by AIP Publishing.en_US
dc.titleLimitations of In2O3 as a transparent conducting oxideen_US
kusw.kuauthorPeelaers, Hartwin
kusw.kudepartmentPhysics and Astronomyen_US
kusw.oanotesPer Sherpa Romeo 04/12/2021:

Applied Physics Letters [Open panel below]Publication Information TitleApplied Physics Letters [English] ISSNs Print: 0003-6951 Electronic: 1077-3118 URL PublishersAmerican Institute of Physics [Society Publisher] [Open panel below]Publisher Policy Open Access pathways permitted by this journal's policy are listed below by article version. Click on a pathway for a more detailed view.

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kusw.oaversionScholarly/refereed, publisher versionen_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US

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