Laser-sintered thin films of doped SiGe nanoparticles

Details Laser-sintered thin films of doped SiGe nanoparticles Laser-sintered thin films of doped SiGe nanoparticles

2012-01-20

arxiv.org/abs/1201.4370v1

Physics

Condensed Matter

Materials Science

4 pages, 4 figures

Scientific paper

We present a study of the morphology and the thermoelectric properties of short-pulse laser-sintered (LS) nanoparticle (NP) thin films, consisting of SiGe alloy NPs or composites of Si and Ge NPs. Laser-sintering of spin-coated NP films in vacuum results in a macroporous percolating network with a typical thickness of 300 nm. The Seebeck coefficient is independent of the sintering process and typical for degenerate doping. The electrical conductivity of LS films rises with increasing temperature, best described by a power-law and influenced by two-dimensional percolation effects.

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