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초록· 키워드
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Interface control plays a pivotal role in optimizing charge carrier injection in organic optoelectronic devices. Despite the universal use of 1,4,5,8,9,12-hexaazatriphenylene-2,3,6,7,10,11-hexacarbonitrile (HAT-CN) layers in such devices, their conduction mechanisms remain unclear. In this work, electrical measurements and ultraviolet photoelectron spectroscopy reveal that a 3 ㎚-thick HAT-CN hole injection layer enables direct tunneling conduction to the N,N’-bis(1-naphthyl)-(1,1’-biphenyl)-4,4’-diamine (NPB) hole transport layer, fundamentally challenging the conventional charge-generation mechanism that relies on thermal energy. Furthermore, these findings highlight that the unique electronic properties of HAT-CN layers provide valuable insights into the charge injection mechanisms, paving the way for the optimization of next-generation organic optoelectronic devices.
목차
Ⅰ. INTRODUCTION
Ⅱ. EXPERIMENT
Ⅲ. RESULTS AND DISCUSSION
Ⅳ. CONCLUSION
REFERENCES
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