Financial support from the Department of Science and Technology, New Delhi and infrastructure support from the Centre for Nanotechnology and the National Single Crystal X-ray Diffractometer Facility (School of Chemistry) at the University of Hyderabad are gratefully acknowledged. C.G.C. thanks the CSIR, New Delhi for a senior research fellowship. We thank M. Durgaprasad, M. Laxminaryana, and M. Nalini for the transmission electron microscopy, field emission scanning electron microscopy, and confocal fluorescence microscopy, respectively.
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Communication
Amorphous-to-Crystalline Transformation with Fluorescence Enhancement and Switching of Molecular Nanoparticles Fixed in a Polymer Thin Film†
Article first published online: 17 OCT 2012
DOI: 10.1002/anie.201205081
Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Issue
Angewandte Chemie International Edition
Volume 51, Issue 47, pages 11849–11852, November 19, 2012
Additional Information
How to Cite
Chandaluri, Ch. G. and Radhakrishnan, T. P. (2012), Amorphous-to-Crystalline Transformation with Fluorescence Enhancement and Switching of Molecular Nanoparticles Fixed in a Polymer Thin Film . Angew. Chem. Int. Ed., 51: 11849–11852. doi: 10.1002/anie.201205081
- †
Publication History
- Issue published online: 14 NOV 2012
- Article first published online: 17 OCT 2012
- Manuscript Received: 28 JUN 2012
Funded by
- Department of Science and Technology, New Delhi
- CSIR, New Delhi
Keywords:
- amorphous materials;
- fluorescence;
- nanoparticles;
- polymers;
- thin films
Growth in a confined environment: A protocol for the amorphous-to-crystalline transformation (ACT) of nanoparticles has been developed, the critical step being the partial confinement of the particles by fixing in a polymer thin film and solvent vapor fuming. The ACT of a diaminodicyanoquinodimethane-based nanoparticle is accompanied by substantial fluorescence enhancement and switching of the emission color.