PHOTOCONDUCTIVITY IN a-Si : H AND a-SixC1-x : H, CORRELATION WITH PHOTOLUMINESCENCE RESULTS D. Caffier, M. Le Contellec and J. Richard J. Phys. Colloques, 42 C4 (1981) C4-1037-C4-1040 DOI: 10.1051/jphyscol:19814227