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Optoelectronic Properities of A-Ge:H/A-Si:H Superlattic Structures
Published online by Cambridge University Press: 28 February 2011
Abstract
The optoelectronic properties of multilayer a-Ge:H/a-Si:H superlattices with bandgaps between ˜1.4 and 1.1eV are presented. The dependence of the electronic properties on the band alignment and the layer thicknesses is established and quantified. Particular emphasis is given to properties relevant to practical device applications and which involve carrier transport perpendicular to the layers.
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