PRIMARY AND SECONDARY PHOTOCURRENTS IN n-TYPE AND p-TYPE a-Si:H FILMS H. M. Welsch, W. Fuhs, K. H. Greeb et H. MellJ. Phys. Colloques, 42 C4 (1981) C4-567-C4-570DOI: https://doi.org/10.1051/jphyscol:19814123