Oligofluorene blue emitters for cholesteric liquid crystal lasers

被引：25

作者：

Chinelatto, L. S., Jr. ^{[1
]}

del Barrio, J. ^{[1
]}

Pinol, M. ^{[1
]}

Oriol, L. ^{[1
]}

Matranga, M. A. ^{[2
]}

De Santo, M. P. ^{[2
]}

Barberi, R. ^{[2
]}

机构：

[1] Univ Zaragoza, Fac Ciencias, ICMA, Dept Quim Organ,CSIC, E-50009 Zaragoza, Spain

[2] Univ Calabria, Dept Phys, CEMIF CAL, INFM,CNR,Licryl Lab, I-87036 Arcavacata Di Rende, Cs, Italy

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2010年 / 210卷 / 2-3期

关键词：

Oligofluorenes; Luminescent materials; Cholesteric liquid crystals; Photonic band gap materials; Lasers; FILMS; POLYMERS;

D O I：

10.1016/j.jphotochem.2010.01.006

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

We present the synthesis and characterization of an oligofluorene series whose chemical structure has been tuned to have amorphous nature, compatibility with liquid crystalline matrices and intrinsic chirality. Oligofluorenes are good blue emitters and the emission quantum yield is around 0.8 in the violet-blue range. The prepared materials are suitable for mirror-less laser applications based on a dye-doped liquid crystal resonator. We propose to use fluorene-based compounds to combine two necessary properties to achieve laser emission from cholesteric liquid crystal mixtures: chirality and luminescence. A good intensity emission and a fine tuning of the laser emission are demonstrated. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：130 / 139

页数：10

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