Molecular nanocrystals grown in sol-gel thin films for ultrabright chemical sensor applications

被引：0

作者：

Monnier, V. ^{[1
,2
]}

Sanz, N. ^{[1
,2
]}

Bacia, M. ^{[1
,2
]}

Pansu, R. ^{[3
]}

Ibanez, A. ^{[1
,2
]}

机构：

[1] Univ Grenoble 1, Lab Cristallog, UPR 5031, 25 Ave Martyrs, F-38042 Grenoble 09, France

[2] Univ Grenoble 1, Inst Natl Polytech Grenoble, F-38042 Grenoble 09, France

[3] ENS Cachan, Photophys & Photochim Supramol & Macromol Lab, CNRS, UMR 8531, F-94235 Cachan, France

来源：

ORGANIC OPTOELECTRONICS AND PHOTONICS II | 2006年 / 6192卷

关键词：

nanocrystals; sol-gel; nanosensors; thin films; fluorescence;

D O I：

10.1117/12.662949

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Polyaromatic dyes were used to synthesize molecular nanocrystals in sol-gel thin films for sensor applications. Fluorescence Confocal Microscopy (FCM) and Transmission Electron Microscopy (TEM) experiments showed the advantages of our nanocrystallization process compared with microcrystallization in free solutions. Indeed, we obtained well-dispersed and spherical nanocrystals with a narrow size distribution, exhibiting a good crystallinity. Time-resolved fluorescence spectroscopy allowed us to measure fluorescence lifetimes of nanocrystals in presence of molecular probes. Then, chemical sensoring properties of these molecular nanocrystals were demonstrated.

引用

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