Growth of long range ordered pentacene/benzenethiol/Cu(100) heterostructure

被引：8

作者：

Kanjilal, A

Bussolotti, F

Crispoldi, F

Beccari, M

Di Castro, V

Betti, MG

Mariani, C

机构：

[1] CNR, INFM, Ctr Nanostruct & Biosyst Surfaces, I-41100 Modena, Italy

[2] Univ Modena, Dipartimento Fis, I-41100 Modena, Italy

[3] Univ Roma La Sapienza, Ist Nazl Fis Mat, Dipartimento Chim, I-00185 Rome, Italy

[4] Univ Roma La Sapienza, Ist Nazl Fis Mat, Dipartimento Fis, I-00185 Rome, Italy

[5] CNR, INFM, CRS, SOFT, I-00185 Rome, Italy

来源：

JOURNAL DE PHYSIQUE IV | 2006年 / 132卷

关键词：

D O I：

10.1051/jp4:2006132057

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a method of producing a long-range ordered pentacene ultra-thin film on a benzenethiol organic buffer layer at saturation coverage, deposited on a cleaned. single crystalline Cu(100) surface, by means of ultra-high-vacuum organic molecular beam epitaxy. The growth morphology is investigated using in-situ low-energy electron-diffraction (LEED) and high-resolution UV photoelectron spectroscopy (HR-UPS). The change in Surface symmetry from c(4x4) at low coverage to c(2 x 6)/c(2 x 2) at saturation coverage of benzenethiol has been examined by LEED. The corresponding valence band modifications have been found by HR-UPS. Pentacene layers Lip to a thickness of 0.6nni possess exactly the same symmetry of the beneath organic buffer layer at saturation coverage, but with more intense and sharper spots as observed in the LEED patterns.

引用

页码：301 / 305

页数：5

共 11 条

[1] Electronic structure of methanethiolate self-assembled on the Cu(100) surface [J].