Morphology control of organic luminescent microcrystals and approach of their optical properties

被引：6

作者：

Abyan, M ^{[1
]}

Birla, L ^{[1
]}

Bertorelle, F ^{[1
]}

Fery-Forgues, S ^{[1
]}

机构：

[1] Univ Toulouse 3, UMR CNRS 5623, Lab Interact Mol & React Chim & Photochim, F-31062 Toulouse, France

来源：

COMPTES RENDUS CHIMIE | 2005年 / 8卷 / 08期

关键词：

organic microcrystals; reprecipitation; poly(acrylic acid); DNA;

D O I：

10.1016/j.crci.2005.02.018

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Microcrystals of an organic fluorescent dye, 4-octylamino-7-nitrobenz-2-oxa-1,3-diazole, were prepared using a reprecipitation method, based on solvent-exchange. We show here that their shape and size can be nicely tuned by the presence of various macromolecules in the reprecipitation medium. To do so, poly(acrylic acid) and calf thymus DNA were used as additives. Homogeneous populations of microcrystals were thus obtained in a reproducible way. Their size and morphology varied with the additive used. The UV/vis absorption and luminescence properties of these microcrystals in suspension are briefly reported. To cite this article: M. Abyan et al., C R. Chimie 8 (2005). (c) 2005 Academie des sciences. Published by Elsevier SAS. All rights reserved.

引用

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页码：1276 / 1281

页数：6

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