Applied Physics Letters · 2016 · 10 citations · 24 references
Natural SciencesMaterials SciencePhysicsNanomaterialsOptoelectronicsSemiconductor MaterialsMetal Oxide NanomaterialsNanostructured Electronic MaterialsOxide SemiconductorsSemiconductor NanomaterialsSemiconductor PhysicsThin Film Electrical PropertiesConductionConduction BandFermi LevelFirst-principles ModelingOptoelectronic PropertiesPhotoconductivityPlasmon-induced Charge TransferPlasmonic Hot Electrons
We report systematic studies based on photoluminescence, Hall, and photoconductivity measurements together with theoretical modeling in order to identify mechanisms for the photo-induced charge transfer effects in ZnO thin film incorporated with the Au nano-islands (AuNIs). Significant enhancement of near band edge emission and improvement in conductivity of ZnO/AuNIs samples after illumination are observed, which are attributed to the photo-induced hot electrons in Au which are then transferred into the conduction band of ZnO as long as the excitation energy is higher than the offset between the ZnO conduction-band minimum and Au Fermi level. Our experimental results are consistent with the general features predicted by first principles calculations.
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Nanowire dye-sensitized solar cells
Matt Law, Lori E. Greene, Justin C. Johnson et al. · Nature Materials · 2005 · 5.3K citations
Natural Sciences, Materials Engineering, Materials Science +12
Bound exciton and donor–acceptor pair recombinations in ZnO
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