Issue 47, 2015
From the journal:

Chemical Communications

Optical gain from polyfluorene keto defects in a liquid crystal mixture

S. Bolis,ab   M. Celebrano,c   L. Ghirardini,c   M. Finazzi,c   C. Botta,d   J. Beeckman,b   P. Kockaerta  and  T. Virgili*e  

* Corresponding authors

a OPERA-photonics, Université libre de Bruxelles (U.L.B.), CP 194/5, 50 Avenue F.D. Roosevelt, 1050 Bruxelles, Belgium

b Liquid Crystals & Photonics Group, ELIS Department, Ghent University, Sint-Pietersnieuwstraat 41, 9000 Gent, Belgium

c L-NESS–Department of Physics, Politecnico di Milano, Piazza Leonardo Da Vinci 32, 20133 Milano, Italy

d ISMAC-CNR, Via Bassini, 20132 Milano, Italy

e IFN-CNR, Dipartimento di Fisica, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20132 Milano, Italy
E-mail: tersilla.virgili@polimi.it

Abstract

By means of confocal photoluminescence measurements and fs pump–probe spectroscopy, we observe the optical properties of phase separation in a mixture of polyfluorene and Liquid Crystals (LCs). The boundaries of LC-rich micro-domains display a large polarized gain region from keto defects stemming from the single-chain nature of this defect.

Graphical abstract: Optical gain from polyfluorene keto defects in a liquid crystal mixture

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Article information

DOI
https://doi.org/10.1039/C5CC02145F
Article type
Communication
Submitted
13 Mar 2015
Accepted
05 May 2015
First published
05 May 2015

Chem. Commun., 2015,51, 9686-9689

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Optical gain from polyfluorene keto defects in a liquid crystal mixture

S. Bolis, M. Celebrano, L. Ghirardini, M. Finazzi, C. Botta, J. Beeckman, P. Kockaert and T. Virgili, Chem. Commun., 2015, 51, 9686 DOI: 10.1039/C5CC02145F

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