Light-induced processes in a-Si:H films at elevated temperaturesстатья
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Дата последнего поиска статьи во внешних источниках: 2 апреля 2015 г.
Аннотация:At temperatures T.120 °C the kinetics of the dark conductivity of undoped and borondoped
a-Si:H films during and after the cessation of illumination is observed to be
nonmonotonic, with fast and slow processes of variation of dark conductivity of opposite sign. A fast or slow relaxation process of dark conductivity described by a stretched exponential function can be isolated by varying the duration and intensity of illumination or the film temperature. The nonmonotonic relaxation of the dark conductivity is described by a sum of two stretched exponentials, whose parameters t and b depend on the film characteristics and on the temperature, exposure time, and intensity of illumination. The nature of the nonmonotonic relaxation is discussed.