Role of hole playing in improving performance of organic light-emitting devices with an Al2O3 layer inserted at the cathode-organic interface
作者： S. T. Zhang , Y. C. Zhou , J. M. Zhao , Y. Q. Zhan , Z. J. Wang
DOI: 10.1063/1.2220013
关键词:
摘要: The role of hole playing in improving electron injection the presence an Al2O3 layer at organic-cathode interface is discussed. It deduced that, according to model tunneling barrier reduction and carrier transporting mechanism organic light-emitting devices, will be enhanced only if holes are injected accumulated organic-buffer interface. validity this analysis well confirmed by experimental results. observed abnormal characteristic operating voltage varying with thickness efficiency improvement also explained model.
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