Growth mechanism and size effect on fluorescence properties of perylene nanocrystals

Yutaka Wakayama; Tadashi Mitsui; Tsunenobu Onodera; Hidetoshi Oikawa; Hachiro Nakanishi

doi:10.1380/ejssnt.2006.69

Conference -ISSS-4-

Growth mechanism and size effect on fluorescence properties of perylene nanocrystals

Yutaka Wakayama, Tadashi Mitsui, Tsunenobu Onodera, Hidetoshi Oikawa, Hachiro Nakanishi

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Keywords: aromatic molecules, nanoparticles, growth, photoluminescence

JOURNAL FREE ACCESS

2006 Volume 4 Pages 69-73

DOI https://doi.org/10.1380/ejssnt.2006.69

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Abstract

The main aims of this study were to explore a new technique for growing molecular nanocrystals and to examine their optical properties. To grow nanocrystals, we applied a vacuum evaporation technique. Small perylene nanocrystals (ca. 200 nm) at a high density (7.6 μm^-2) were produced by ultra-rapid evaporation on a pattern-indented Si surface. A perylene-3,4,9,10-tetracarboxylic-3,4,9,10-dianhydride (PTCDA) buffer layer was found to be effective for further downsizing of the nanocrystals and for preserving their fluorescence properties originating from the nanoscale size effect. [DOI: 10.1380/ejssnt.2006.69]

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