Applied Physics Letters · 2010 · 190 citations · 8 references
Natural SciencesMaterials SciencePhysicsCondensed Matter PhysicsElectronic MaterialsOptoelectronicsAb Initio MethodsDensity Functional TheoryElectronic Band StructureElectronic Structure Of SolidsOxide SemiconductorsTransparent Conducting OxidesAngle-resolved Photoelectron SpectroscopyBand GapBand Structure CalculationElectronic Structure AnalysisOptoelectronic PropertiesOxide Electronic StructureTransparent Conductive OxidesValence Band Structure
β -Ga 2 O 3 has the widest energy gap of the transparent conducting oxides. The interest in its electronic properties has recently increased because of its applications in various optoelectronic devices, semiconductor lasers, and ultrasensitive gas detecting systems. In contrast, information on the electronic structure of β-Ga2O3 is very scarce. Here, we present the experimental valence-band structure of β-Ga2O3 single crystals determined by high-resolution angle-resolved photoelectron spectroscopy utilizing synchrotron radiation. We find good matching of the experimental band structure with the advanced density functional theory calculations employing hybrid functionals and projector augmented wave potentials.
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Deep-ultraviolet transparent conductive β-Ga2O3 thin films
Masahiro Orita, Hiromichi Ohta, Masahiro Hirano et al. · Applied Physics Letters · 2000 · 996 citations
Natural Sciences, Materials Engineering, Materials Science +17