Optical materials based on molecular nano/microcrystals and ultrathin films

Patra, A. ; Rajesh, K. ; Radhakrishnan, T. P. (2008) Optical materials based on molecular nano/microcrystals and ultrathin films Bulletin of Materials Science, 31 (3). pp. 421-427. ISSN 0250-4707

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Official URL: http://www.ias.ac.in/matersci/bmsjun2008/421.pdf

Abstract

Methodologies that we developed recently for the fabrication of molecular crystals with size variation in the nano to micro regime and polyelectrolyte templated mono and multilayer Langmuir-Blodgett films, are reviewed. The electronic absorption and strong fluorescence in the molecular nano/microcrystals are found to be size-dependent. Crystal structure and computational investigations provide a unified model to explain these observations. Role of polyelectrolyte templating in achieving stable and enhanced optical second harmonic generation response from LB films based on a hemicyanine amphiphile is highlighted.

Item Type:Article
Keywords:Molecular Nano/ Microcrystals; Aggregate Fluorescence; Langmuir–Blodgett Film; Polyelectrolyte; Second Harmonic Generation
ID Code:37176
Deposited On:25 Apr 2012 05:39
Last Modified:17 May 2016 20:04

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