Near-field scanning optical microscopy of zinc-porphyrin crystals

被引:4
作者
Brunner, R
Kosal, ME
Suslick, KS
Lamche, R
Marti, O
White, JO
机构
[1] Univ Illinois, Frederick Seitz Mat Res Lab, Urbana, IL 61801 USA
[2] Univ Illinois, Sch Chem Sci, Urbana, IL 61801 USA
[3] Univ Ulm, Dept Expt Phys, Ulm, Germany
关键词
scanning near-field optical microscopy; microscopic examination of materials; organic crystals; fluorescence;
D O I
10.1016/S0304-3991(00)00027-9
中图分类号
TH742 [显微镜];
学科分类号
摘要
Using a near-field scanning optical microscope (NSOM), crystals of zinc-porphyrin network materials are characterized with respect to morphology and fluorescence. Needle-shaped crystals are observed. While the topography is flat, the fluorescence intensity profile in the width direction is approximately triangular. A numerical calculation shows that differences between the topographic and optical images cannot be due to an artifact. In some needle-shaped crystals, the fluorescence emission is strongly peaked at one or both ends, possibly indicating a polar crystal structure. (C) 2000 Elsevier Science B.V, All rights reserved.
引用
收藏
页码:149 / 157
页数:9
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