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By means of ab-initio electronic structure calculation and one-dimensional Boltzmann transport equation solution, we investigate the size dependent thermoelectric (TE) properties of n-type ZnO nanowires (NWs) and surface passivation effects. As demonstrated by our calculations, largest figure of merit ZT achievable in thin NWs is larger than that in wide NWs, whereas being restrained by higher demand...
Indium nitride (InN) films with different free electron concentration and optical bandgap were grown either directly on sapphire substrate or on pre-covered gallium nitride (GaN) buffer through metal-organic chemical vapor deposition (MOCVD) method. Based on first-principle calculations, we confirm that the widening of InN optical bandgap reported before is caused by high density of free electrons...
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