Abstract
Abstract The time dependence of triplet excitation energy transport in energetically disordered organic solids is studied. Contrary to the ensemble averaged hopping frequency ν ( t )∼ t α ( t )−1 with time dependent dispersion parameter α ( t ), we introduce the hopping rate in the form ν ( t )∼( a + bt ) −1 , without time dependent parameters. We show that such hopping rate leads to the power-like tail of luminescence decay function. The mechanism leading to time hierarchy in hopping phenomena is discussed.
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