Thickness Effect on Fluctuation of Electron States in Thin Film and Implications for Lattice Constant Change Due to Size Reduction

Nadya Amalia; Sparisoma Viridi; Mikrajuddin Abdullah

doi:10.5614/j.math.fund.sci.2017.49.3.2

Authors

Nadya Amalia Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132,
Sparisoma Viridi Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132,
Mikrajuddin Abdullah Department of Physics, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132, Bandung Innovation Center, Jalan Sembrani 19, Bandung

DOI:

https://doi.org/10.5614/j.math.fund.sci.2017.49.3.2

Keywords:

electron states, nanoparticles, potential fluctuation, size dependent lattice constant, thin film

Abstract

We propose a model for predicting the fluctuation of electron states in thin films as a function of film thickness. The model is derived based on the assumption of the existence of potential barrier fluctuation on the film surface. Since the wave functions of electrons in the film are determined by the boundary conditions of the potential on the film surface, the potential fluctuation on the film surface implies fluctuation of the electron states in the film. The model was extended to predict the effect of size on the lattice constant of thin films or nanoparticles.

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