Continuum model description of thin-film growth morphology

Continuum model description of thin film growth morphology

We examine the applicability of the continuum model to describe the surface morphology of a hetero-growth system: compositionally-graded, relaxed GeSi films on (001) Si substrates. Surface roughness versus lateral dimension was analyzed for samples what were grown under different conditions. We find that all samples belong to the same growth class, in which the surface roughness scales linearly...

Continuum model of thin-film deposition and growth.

Stationary solutions for a model of amorphous thin-film growth

We consider a class of stochastic partial differential equations arising as a model for amorphous thin film growth. Using a spectral Galerkin method, we verify the existence of stationary mild solutions, although the specific nature of the nonlinearity prevents us from showing the uniqueness of the solutions as well as their boundedness (in time).

Fluctuations and Thin Film Growth

Two-dimensional mound coarsening is studied using a continuum model in which the effects of deposition noise have been included but in which coalescence due to mass transfer is assumed to be negligible as expected at low temperature. In agreement with scaling arguments for the case of fluctuation-dominated mound coarsening, we find n = β = 1/3, where n is the mound coarsening exponent and β is ...

Modeling and Control of Thin Film Surface Morphology : Application to Thin Film Solar Cells

OF THE DISSERTATION Modeling and Control of Thin Film Surface Morphology: Application to Thin Film Solar Cells