Growth of optically active p-phenylene needles on mica

被引:35
作者
Balzer, F [1 ]
Rubahn, HG [1 ]
机构
[1] SDU Odense, Inst Fys, DK-5230 Odense M, Denmark
关键词
low energy electron diffraction (LEED); visible/ultraviolet absorption spectroscopy; growth; mica;
D O I
10.1016/S0039-6028(02)01314-6
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Structural and optical properties of p-phenylene oligomers (p-nP, n = 4, 5, 6) grown on mica (0 0 0 1) are investigated via low energy electron diffraction (LEED) using a multi-channelplate LEED as well as linear absorption spectroscopy and fluorescence microscopy. Single-crystalline fibres of laying p-6P molecules with lengths of up to 1 mm are grown at elevated mica surface temperatures. The needles are mutually parallel oriented and form large domains of size 20 x 10 mm(2). Their orientation on the surface is controlled by interaction with surface dipole fields. These fibres allow us easy polarization control of absorbed ultraviolet and emitted blue light. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:588 / 592
页数:5
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