Journal
APPLIED PHYSICS LETTERS
Volume 93, Issue 8, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2969293
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- NSFC
- MOST [973]
- CAS Program
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A p-type doped organic layer combined with a hole-blocking layer has been experimentally demonstrated to serve as the charge generation unit in tandem-type organic light-emitting devices. The p-type layer functions as the source of both holes and electrons. Charge separation is explained by the tunneling model that the hole-blocking layer reduces the energy barrier for the electrons generated in the p-type layer to tunnel through into one light-emitting unit, while the holes generated in the p-type layer can transport to the other light-emitting unit easily under operation voltage. (c) 2008 American Institute of Physics.
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