Geminate and non-geminate recombination in a-As2Se3
1981
Combined zerographic measurements and a delayed-collection field technique has been applied to a-As2Se3. The data shows that the zero-field quantum efficiency is 0.45±0.02. The measured field and temperature dependence gives a best fit to the Onsager theory with r0=80 A for Φ0=1. Non-geminate recombination was studied using a delayed-collection field technique as a function of the time delay of the collection field. The results indicate a remarkably long recombination lifetime≈1 sec at room temperature which is diffusion-controlled.
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