Abstract
A study was conducted to demonstrate the alignment and dynamic manipulation of novel conjugated polymer nanowires in a nematic liquid crystal (LC). E7, a low-molecular-weight and room temperature nematic LC material, was employed as the host matrix in the study. The guest nanowires were composed of poly(9,9-dioctyfluorenyl-2,7-diyl) (PFO), a highly efficient blue-emitting, semiconducting polymer with better thermal and oxidative stability, which are synthesized using a template method. It was demonstrated that initial optical spectroscopic investigations yield well-resolved photoluminescence (PL) spectra characteristics of PFO β-phase, in which polymer chain segments adopt a planarized and extended conformation. Nanowire PL emission was also found to be axially polarized and consistent with internal alignment of β-phase strands during synthesis.
| Original language | English |
|---|---|
| Pages (from-to) | 2497-2502 |
| Number of pages | 6 |
| Journal | Advanced Materials |
| Volume | 20 |
| Issue number | 13 |
| DOIs | |
| Publication status | Published - Jul 2 2008 |
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ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
Cite this
Alignment and dynamic manipulation of conjugated polymer nanowires in nematic liquid crystal hosts. / Movnihan, Shane; Lovera, Pierre; O'Carroll, Deirdre M; Iacopino, Daniela; Redmond, Gareth.
In: Advanced Materials, Vol. 20, No. 13, 02.07.2008, p. 2497-2502.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Alignment and dynamic manipulation of conjugated polymer nanowires in nematic liquid crystal hosts
AU - Movnihan, Shane
AU - Lovera, Pierre
AU - O'Carroll, Deirdre M
AU - Iacopino, Daniela
AU - Redmond, Gareth
PY - 2008/7/2
Y1 - 2008/7/2
N2 - A study was conducted to demonstrate the alignment and dynamic manipulation of novel conjugated polymer nanowires in a nematic liquid crystal (LC). E7, a low-molecular-weight and room temperature nematic LC material, was employed as the host matrix in the study. The guest nanowires were composed of poly(9,9-dioctyfluorenyl-2,7-diyl) (PFO), a highly efficient blue-emitting, semiconducting polymer with better thermal and oxidative stability, which are synthesized using a template method. It was demonstrated that initial optical spectroscopic investigations yield well-resolved photoluminescence (PL) spectra characteristics of PFO β-phase, in which polymer chain segments adopt a planarized and extended conformation. Nanowire PL emission was also found to be axially polarized and consistent with internal alignment of β-phase strands during synthesis.
AB - A study was conducted to demonstrate the alignment and dynamic manipulation of novel conjugated polymer nanowires in a nematic liquid crystal (LC). E7, a low-molecular-weight and room temperature nematic LC material, was employed as the host matrix in the study. The guest nanowires were composed of poly(9,9-dioctyfluorenyl-2,7-diyl) (PFO), a highly efficient blue-emitting, semiconducting polymer with better thermal and oxidative stability, which are synthesized using a template method. It was demonstrated that initial optical spectroscopic investigations yield well-resolved photoluminescence (PL) spectra characteristics of PFO β-phase, in which polymer chain segments adopt a planarized and extended conformation. Nanowire PL emission was also found to be axially polarized and consistent with internal alignment of β-phase strands during synthesis.
UR - http://www.scopus.com/inward/record.url?scp=54949152282&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=54949152282&partnerID=8YFLogxK
U2 - 10.1002/adma.200701986
DO - 10.1002/adma.200701986
M3 - Article
AN - SCOPUS:54949152282
VL - 20
SP - 2497
EP - 2502
JO - Advanced Materials
JF - Advanced Materials
SN - 0935-9648
IS - 13
ER -