Effect of solvent on organic nanocrystal growth using the reprecipitation method

Hae Ryong Chung; Eunsang Kwon; Hidetoshi Oikawa; Hitoshi Kasai; Hachiro Nakanishi

doi:10.1016/j.jcrysgro.2006.07.010

Effect of solvent on organic nanocrystal growth using the reprecipitation method

Hae Ryong Chung, Eunsang Kwon, Hidetoshi Oikawa, Hitoshi Kasai, Hachiro Nakanishi

Research output: Contribution to journal › Article › peer-review

64 Citations (Scopus)

Abstract

We have fabricated organic nanocrystals of low-molecular-weight aromatic compounds such as perylene and anthracene using the so-called reprecipitation method, in which a dilute solution of the compound prepared by water-soluble solvent, i.e., good solvent, is injected into vigorously stirred water as a poor medium. The resulting nanocrystals are dispersed stably in water. It was found that the average size of perylene nanocrystals formed, as evaluated by dynamic light scattering technique, decreased as the dielectric constant of the good solvent increased, while the size of the anthracene nanocrystals increased with increasing dielectric constant due to association in the aqueous dispersion liquid. The influence of solvent polarity and solubility on the nanocrystallization process in the reprecipitation method is discussed in detail.

Original language	English
Pages (from-to)	459-463
Number of pages	5
Journal	Journal of Crystal Growth
Volume	294
Issue number	2
DOIs	https://doi.org/10.1016/j.jcrysgro.2006.07.010
Publication status	Published - 2006 Sep 4

Keywords

A1. Growth models
A1. Nanocrystallization
A1. Solubility
A1. Solvents
B1. Aromatic compounds
B1. Nanomaterials

ASJC Scopus subject areas

Condensed Matter Physics
Inorganic Chemistry
Materials Chemistry

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title = "Effect of solvent on organic nanocrystal growth using the reprecipitation method",

abstract = "We have fabricated organic nanocrystals of low-molecular-weight aromatic compounds such as perylene and anthracene using the so-called reprecipitation method, in which a dilute solution of the compound prepared by water-soluble solvent, i.e., good solvent, is injected into vigorously stirred water as a poor medium. The resulting nanocrystals are dispersed stably in water. It was found that the average size of perylene nanocrystals formed, as evaluated by dynamic light scattering technique, decreased as the dielectric constant of the good solvent increased, while the size of the anthracene nanocrystals increased with increasing dielectric constant due to association in the aqueous dispersion liquid. The influence of solvent polarity and solubility on the nanocrystallization process in the reprecipitation method is discussed in detail.",

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AU - Chung, Hae Ryong

AU - Kwon, Eunsang

AU - Oikawa, Hidetoshi

AU - Kasai, Hitoshi

AU - Nakanishi, Hachiro

PY - 2006/9/4

Y1 - 2006/9/4

N2 - We have fabricated organic nanocrystals of low-molecular-weight aromatic compounds such as perylene and anthracene using the so-called reprecipitation method, in which a dilute solution of the compound prepared by water-soluble solvent, i.e., good solvent, is injected into vigorously stirred water as a poor medium. The resulting nanocrystals are dispersed stably in water. It was found that the average size of perylene nanocrystals formed, as evaluated by dynamic light scattering technique, decreased as the dielectric constant of the good solvent increased, while the size of the anthracene nanocrystals increased with increasing dielectric constant due to association in the aqueous dispersion liquid. The influence of solvent polarity and solubility on the nanocrystallization process in the reprecipitation method is discussed in detail.

AB - We have fabricated organic nanocrystals of low-molecular-weight aromatic compounds such as perylene and anthracene using the so-called reprecipitation method, in which a dilute solution of the compound prepared by water-soluble solvent, i.e., good solvent, is injected into vigorously stirred water as a poor medium. The resulting nanocrystals are dispersed stably in water. It was found that the average size of perylene nanocrystals formed, as evaluated by dynamic light scattering technique, decreased as the dielectric constant of the good solvent increased, while the size of the anthracene nanocrystals increased with increasing dielectric constant due to association in the aqueous dispersion liquid. The influence of solvent polarity and solubility on the nanocrystallization process in the reprecipitation method is discussed in detail.

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KW - B1. Nanomaterials

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