Semiconductor Science and Technology · 2002 · 56 citations · 16 references
Natural SciencesMaterials SciencePhysicsMaterials CharacterizationOptoelectronicsThin FilmsElectronic Material CharacterizationOptical Properties Of SolidsThermoelectric MaterialsThin Film Electrical PropertiesThin Film Optical PropertiesThin-film MaterialsCarrier ConcentrationEnergy Dispersive X-ray SpectroscopyEnergy-dispersive X-ray SpectroscopyHall EffectOptical PropertiesThermoelectric PropertiesThin Film ThermoelectricsX-ray Diffraction Analysis
We study the structural, electrical and optical properties of silver selenide thin films prepared by reactive evaporation. From the Hall effect study, at room temperature we find a mobility of 2000 cm2 V−1 s−1 and a carrier concentration of 1018 cm−3. The thermoelectric power is measured from room temperature up to 200 °C. X-ray diffraction indicates that the as-prepared films are polycrystalline in nature. The composition and morphology are determined using energy dispersive x-ray analysis and scanning electron microscopy (SEM). The optical bandgap, which is direct-allowed, is 1.58 eV.
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