Vibrational study of tris-(8-hydroxyquinoline) aluminum/LiF/Al interfaces

被引:16
|
作者
He, P
Wang, SD
Lee, ST
Hung, LS [1 ]
机构
[1] City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong Kong, Peoples R China
[2] City Univ Hong Kong, Ctr Super Diamond & Adv Films, Hong Kong, Hong Kong, Peoples R China
[3] Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China
关键词
D O I
10.1063/1.1573353
中图分类号
O59 [应用物理学];
学科分类号
摘要
Interface studies of tris-(8-hydroxyquinoline) aluminum (Alq(3))/LiF/Al were carried out with high-resolution electron-energy-loss spectroscopy. With LiF on Alq(3) or Al on LiF, no significant changes in intensity were observed for the loss peak related to the Li-F stretch mode. However, the deposition of less than one monolayer of Al on Alq(3)/LiF resulted in a strong attenuation of the LiF-loss peak, providing a direct evidence of LiF dissociation in the coexistence of Alq3 and Al with LiF. On the other hand, the LiF-loss peak remained almost unchanged when Al was deposited on poly (9,9-dioctyl-fluorene)/ LiF. (C) 2003 American Institute of Physics.
引用
收藏
页码:3218 / 3220
页数:3
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