Dipoles and band alignment for benzene/Au(111) and C60/Au(111) interfaces

被引:27
作者
Abad, E. [1 ]
Ortega, J. [1 ]
Dappe, Y. J. [1 ]
Flores, F. [1 ]
机构
[1] Univ Autonoma Madrid, Dept Fis Teor Mat Condensada, E-28049 Madrid, Spain
来源
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2009年 / 95卷 / 01期
关键词
ENERGY-LEVEL ALIGNMENT; ELECTRONIC-STRUCTURE; CHARGE-TRANSFER; METAL; AU(111); MOLECULES; BENZENE;
D O I
10.1007/s00339-008-5010-4
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
A local orbital DFT-approach combined with a "scissor"-operator is used to obtain the Charge Neutrality Level and the screening parameter in the benzene/Au(111) and C-60/Au(111) interfaces. The "pillow" dipole and interface Fermi level are also calculated. The total dipole induced across the interface is compared with the experimental evidences: while the agreement for C-60/Au(111) is excellent, for benzene/Au(111), some discrepancies appear that are discussed in the light of other models.
引用
收藏
页码:119 / 124
页数:6
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