Numéro
J. Phys. Colloques
Volume 42, Numéro C4, Octobre 1981
Proceedings of the Ninth International Conference on Amorphous and Liquid Semiconductors
Page(s) C4-843 - C4-847
DOI https://doi.org/10.1051/jphyscol:19814186
Proceedings of the Ninth International Conference on Amorphous and Liquid Semiconductors

J. Phys. Colloques 42 (1981) C4-843-C4-847

DOI: 10.1051/jphyscol:19814186

THE DIFFUSION OF HEAVY ALKALI ATOMS IN AMORPHOUS SILICON

M. Reinelt and S. Kalbitzer

Max-Planck-Institut für Kernphysik, D-6900 Heidelberg, F.R.G.


Abstract
The diffusion of K, Rb, and Cs has been studied by implantation of low energy ions into a-Si and using high-resolution Rutherford backscattering for measurement of the resulting profiles. The diffusion is many orders of magnitude slower than in c-Si. Trapping and detrapping effects have been observed. Trap depth and average distance have been estimated. a-Si appears as an inhomogeneous solid consisting of a disordered bulk with voids embedded.