EFFECT OF TEMPERATURE ON OPTICAL PROPERTIES OF GLOW DISCHARGE HYDROGENATED AMORPHOUS SILICON FILMS A. Donnadieu, B. Yous, J.M. Berger, J.P. Ferraton and J. Robin J. Phys. Colloques, 42 C4 (1981) C4-655-C4-658 DOI: 10.1051/jphyscol:19814144