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Proceedings Paper

Optical characteristics of 9, 10-diphenylanthracene nanocrystals fabricated by reprecipitation
Author(s): Zhaolin Yuan; Junsheng Yu; Wenming Ma; Yadong Jiang
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Paper Abstract

9,10-Diphenylanthracene (DPA) nanocrystals were prepared using a reprecipitation method. Morphologies and Optical properties of DPA nanocrystals were investigated by a scanning electron microscope (SEM), UV-Visible absorption and fluorescence emission spectra, respectively. The results showed that a large amount of DPA nanocrystals form and have a width of about 300-500 nm, a length of 500 nm, a thickness of a few tens of nanometers. Optical properties of the nanocrystals are obviously different from those of DPA monomer. All absorption peaks for DPA nanocrystals experience a bathochromic shift with respect to those of DPA monomer due to the formation of J-aggregates in the nanocrystals. The emission peaks of DPA nanocrystals are red-shifted compared with those of the diluted solution, which are attributed to the intermolecular force difference between the monomer and nanocrystals. In addition, the mechanisms of nanocrystals formation were also analyzed and discussed in detail.

Paper Details

Date Published: 22 October 2010
PDF: 6 pages
Proc. SPIE 7658, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, 76582H (22 October 2010); doi: 10.1117/12.865961
Show Author Affiliations
Zhaolin Yuan, Univ. of Electronic Science and Technology of China (China)
Junsheng Yu, Univ. of Electronic Science and Technology of China (China)
Wenming Ma, Univ. of Electronic Science and Technology of China (China)
Yadong Jiang, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 7658:
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology

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