Energy- and density-dependent dynamics of photoexcited carriers in InN films

Fukunaga, K.; Hashimoto, M.; Kunugita, H.; Kamimura, J.; Kikuchi, A.; Kishino, K.; Ema, K.
December 2009
Applied Physics Letters;12/7/2009, Vol. 95 Issue 23, p232114
Academic Journal
Fast and slow photocarrier dynamics in indium nitride films have been investigated using femtosecond transient measurements at room temperature. The behavior of the decay dynamics is found to be strongly dependent on the excitation energy and the background carrier density. We have found that the slow decay component disappears under optimized conditions due to equilibrium between band filling and bandgap renormalization effects.


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