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Vardeny, Zeev Valentine | Optical studies of excess carrier recombination in α-Si:H: evidence of dispersive diffusion | Relaxation of photoinduced optical absorption following pulsed laser excitation was measured between 0.5 pis and 10 ms in doped and undoped a-Si:H as a function of temperature. The recombination was found to be bimolecular diffusion limited. The diffusion coefficient of the excess carriers is time ... | Hydrogenated amorphous silicon; a-Si:H; Excess carrier recombination; Dispersive diffusion | 1980-05 |