Waveguiding, microcavity effects and optically pumped lasing in single melt processed polyfluorene nanowires

Deirdre M O'Carroll, Gareth Redmond

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The synthesis of poly(9,9-dioctylfluorene) conjugated polymer nanowires using the method of melt-assisted wetting of nanoporous alumina membrane templates is reported. Polymer nanowires exhibiting blue photoluminescence emission with diameters of approx. 300 nm are obtained. Absorption and photoluminescence spectra of nanowire mats indicate that the nanowires consist of the semi-crystalline form of the polymer. Single wires exhibit active waveguide behavior whereby excited luminescence propagates towards and out-couples at the tips of the nanowires. Spectra of out-coupled emission exhibit multiple modes with mode spacing corresponding to longitudinal Fabry-Pérot cavities of equivalent lengths to those of the nanowires. Above a threshold incident pump energy spectral collapse to a single blue shifted peak with instrument limited line width occurs characteristic of single mode lasing.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium Proceedings
Pages240-245
Number of pages6
Volume965
Publication statusPublished - 2006
Event2006 MRS Fall Meeting - Boston, MA, United States
Duration: Nov 27 2006Dec 1 2006

Other

Other2006 MRS Fall Meeting
CountryUnited States
CityBoston, MA
Period11/27/0612/1/06

Fingerprint

Microcavities
Nanowires
Photoluminescence
Polymers
Aluminum Oxide
Conjugated polymers
Linewidth
Wetting
Luminescence
Waveguides
Alumina
Pumps
Wire
Crystalline materials
Membranes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

O'Carroll, D. M., & Redmond, G. (2006). Waveguiding, microcavity effects and optically pumped lasing in single melt processed polyfluorene nanowires. In Materials Research Society Symposium Proceedings (Vol. 965, pp. 240-245)

Waveguiding, microcavity effects and optically pumped lasing in single melt processed polyfluorene nanowires. / O'Carroll, Deirdre M; Redmond, Gareth.

Materials Research Society Symposium Proceedings. Vol. 965 2006. p. 240-245.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

O'Carroll, DM & Redmond, G 2006, Waveguiding, microcavity effects and optically pumped lasing in single melt processed polyfluorene nanowires. in Materials Research Society Symposium Proceedings. vol. 965, pp. 240-245, 2006 MRS Fall Meeting, Boston, MA, United States, 11/27/06.
O'Carroll DM, Redmond G. Waveguiding, microcavity effects and optically pumped lasing in single melt processed polyfluorene nanowires. In Materials Research Society Symposium Proceedings. Vol. 965. 2006. p. 240-245
O'Carroll, Deirdre M ; Redmond, Gareth. / Waveguiding, microcavity effects and optically pumped lasing in single melt processed polyfluorene nanowires. Materials Research Society Symposium Proceedings. Vol. 965 2006. pp. 240-245
@inproceedings{9f76e56895d342f8824ca0f4ba5945fe,
title = "Waveguiding, microcavity effects and optically pumped lasing in single melt processed polyfluorene nanowires",
abstract = "The synthesis of poly(9,9-dioctylfluorene) conjugated polymer nanowires using the method of melt-assisted wetting of nanoporous alumina membrane templates is reported. Polymer nanowires exhibiting blue photoluminescence emission with diameters of approx. 300 nm are obtained. Absorption and photoluminescence spectra of nanowire mats indicate that the nanowires consist of the semi-crystalline form of the polymer. Single wires exhibit active waveguide behavior whereby excited luminescence propagates towards and out-couples at the tips of the nanowires. Spectra of out-coupled emission exhibit multiple modes with mode spacing corresponding to longitudinal Fabry-P{\'e}rot cavities of equivalent lengths to those of the nanowires. Above a threshold incident pump energy spectral collapse to a single blue shifted peak with instrument limited line width occurs characteristic of single mode lasing.",
author = "O'Carroll, {Deirdre M} and Gareth Redmond",
year = "2006",
language = "English",
isbn = "9781604234176",
volume = "965",
pages = "240--245",
booktitle = "Materials Research Society Symposium Proceedings",

}

TY - GEN

T1 - Waveguiding, microcavity effects and optically pumped lasing in single melt processed polyfluorene nanowires

AU - O'Carroll, Deirdre M

AU - Redmond, Gareth

PY - 2006

Y1 - 2006

N2 - The synthesis of poly(9,9-dioctylfluorene) conjugated polymer nanowires using the method of melt-assisted wetting of nanoporous alumina membrane templates is reported. Polymer nanowires exhibiting blue photoluminescence emission with diameters of approx. 300 nm are obtained. Absorption and photoluminescence spectra of nanowire mats indicate that the nanowires consist of the semi-crystalline form of the polymer. Single wires exhibit active waveguide behavior whereby excited luminescence propagates towards and out-couples at the tips of the nanowires. Spectra of out-coupled emission exhibit multiple modes with mode spacing corresponding to longitudinal Fabry-Pérot cavities of equivalent lengths to those of the nanowires. Above a threshold incident pump energy spectral collapse to a single blue shifted peak with instrument limited line width occurs characteristic of single mode lasing.

AB - The synthesis of poly(9,9-dioctylfluorene) conjugated polymer nanowires using the method of melt-assisted wetting of nanoporous alumina membrane templates is reported. Polymer nanowires exhibiting blue photoluminescence emission with diameters of approx. 300 nm are obtained. Absorption and photoluminescence spectra of nanowire mats indicate that the nanowires consist of the semi-crystalline form of the polymer. Single wires exhibit active waveguide behavior whereby excited luminescence propagates towards and out-couples at the tips of the nanowires. Spectra of out-coupled emission exhibit multiple modes with mode spacing corresponding to longitudinal Fabry-Pérot cavities of equivalent lengths to those of the nanowires. Above a threshold incident pump energy spectral collapse to a single blue shifted peak with instrument limited line width occurs characteristic of single mode lasing.

UR - http://www.scopus.com/inward/record.url?scp=40949107291&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=40949107291&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:40949107291

SN - 9781604234176

VL - 965

SP - 240

EP - 245

BT - Materials Research Society Symposium Proceedings

ER -