Impurity-defect interaction in polycrystalline silicon for photovoltaic applications. The role of hydrogen A. Chari, P. de Mierry, A. Menikh and M. Aucouturier Rev. Phys. Appl. (Paris), 22 7 (1987) 655-662 DOI: 10.1051/rphysap:01987002207065500