Angle-resolved UV photoelectron spectra (UPS) of thin films of perylene-3,4,9,10-tetracarboxylic dianhydride on MoS2

被引：35

作者：

Azuma, Y ^{[1
]}

Hasebe, T

Miyamae, T

Okudaira, KK

Harada, Y

Seki, K

Morikawa, E

Saile, V

Ueno, N

机构：

[1] Chiba Univ, Grad Sch Sci & Technol, Chiba 2638522, Japan

[2] Inst Mol Sci, Okazaki, Aichi 4448585, Japan

[3] Chiba Univ, Fac Engn, Dept Mat Sci, Inage, Chiba 2638522, Japan

[4] Nagoya Univ, Fac Sci, Dept Chem, Nagoya, Aichi 4648602, Japan

[5] Louisiana State Univ, J Bennett Johnston Sr Ctr Adv Microstruct & Devic, Baton Rouge, LA 70803 USA

来源：

JOURNAL OF SYNCHROTRON RADIATION | 1998年 / 5卷

关键词：

organic thin films; angle-resolved UV photoelectron spectroscopy; UPS; perylene-3,4,9,10-tetracarboxylic dianhydride (PTCDA);

D O I：

10.1107/S0909049597016877

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Angle-resolved UV photoelectron spectra (ARUPS) were measured for thin films of perylene-3,4,9,10-tetracarboxylic dianhydride (PTCDA) deposited on cleaved MoS2 surfaces. The take-off angle (theta) dependence of the photoelectron intensity of the highest pi band showed a sharp maximum at theta = 32-34 degrees. A spectral feature of the binding energy at similar to 8.9 eV, which is believed to originate from a pi state, showed a remarkably different a dependence from that of the pi band. A quantitative analysis of the observed a dependencies clearly indicates that (a) the feature at similar to 8.9 eV originates from the oxygen 2p non-bonding states and (b) the molecules lie flat on the substrate surface.

引用

页码：1044 / 1046

页数：3

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