Blue iridium complexes as electron trapping sites and efficient recombination centres in poly(N-vinylcarbazole) seen by spectrally resolved thermoluminescence
Occurrence of hole traps on PVK and deep electron traps on the blue iridium complexes.
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The presence of blue iridium complexes creates a new channel for the energy transfer.
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Holes released from PVK traps generate triplet excitons of FIrpic or Ir(Fppy)3.
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FIrpic acts as effective radiative recombination centre in PVK even at 0.1 wt%.
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SRTL as a method for identification of traps and emission centres in EL systems.
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