Ordered growth and crystal structure of Alq3 on alkali halide surfaces

被引:12
作者
Ichikawa, H [1 ]
Shimada, T [1 ]
Koma, A [1 ]
机构
[1] Univ Tokyo, Dept Chem, Bunkyo Ku, Tokyo 1130033, Japan
来源
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS | 2001年 / 40卷 / 3A期
关键词
Alq(3); epitaxial growth; electron diffraction; one-dimensional ordering; alkali halide; geometrical isomers; mer;
D O I
10.1143/JJAP.40.L225
中图分类号
O59 [应用物理学];
学科分类号
摘要
Ordered films of tris-8-hydroxyquionolate-aluminum (Alq(3)) were grown by molecular beam deposition on cleaved KCl and KBr surfaces. The local molecular arrangements in the films were characterized by two-dimensional analysis of multiazimuth reflection medium energy electron diffraction (RMEED). A new type of curved one-dimensional crystallographic ordering was observed on KBr while a continuous point-on-line-type ordering was observed on KCl. Growth of the crystals consisting of mer isomers is suggested from the observed triple period superstructure.
引用
收藏
页码:L225 / L227
页数:3
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