dc.contributor.author | BLAU, WERNER | |
dc.date.accessioned | 2013-07-24T08:28:23Z | |
dc.date.available | 2013-07-24T08:28:23Z | |
dc.date.issued | 2000 | |
dc.date.submitted | 2000 | en |
dc.identifier.citation | Woo, H.S., Czerw, R., Webster, S., Carroll, D.L., Ballato, J., Strevens, A.E., O'Brien, D., Blau, W.J., Hole blocking in carbon nanotube-polymer composite organic light-emitting diodes based on poly (m-phenylene vinylene-co-2, 5-dioctoxy-p-phenylene vinylene), Applied Physics Letters, 77, 9, 2000, 1393-1395 | en |
dc.identifier.other | Y | |
dc.description | PUBLISHED | en |
dc.description.abstract | In order to investigate the role of carbon nanotubes in a polymer matrix, organic light-emitting
diodes were fabricated from a polymer composite composed of poly
~
m
-phenylene
vinylene-co-2,5-dioctoxy-
p
-phenylene
!~
PmPV
!
and dispersed single-wall carbon nanotubes
~
SWNTs
!
. Tris-
~
8-hydroxyquinolinolato
!
aluminum (Alq
3
) doped by Nile Red was used as an
emissive material between the polymer composite and cathode. The device fabricated without
SWNTs dispersed in the PmPV shows a dominant emission near red at 600 nm, which is in the
range of the characteristic emission of Nile Red-doped Alq
3
, with a small amount of green emission
from the PmPV. However, the devices fabricated with the polymer composite show an increase in
the oscillator strength of the green emission with a dominant emission peak near 500 nm, the
characteristic emission of PmPV. This was observed for SWNT concentrations up to 0.1 wt %. The
shift in the emission indicates that the SWNTs in the PmPV matrix act as a hole-blocking material
that results in a shifting of the recombination region from the Nile Red-doped Alq
3
layer to the
PmPV composite layer. | en |
dc.description.sponsorship | The authors gratefully acknowledge funding from
AFOSR, DURIP, and the state of South Carolina. The au-
thors also acknowledge the support of J. T. Morrison of
Bayer for supplying the PEDOT:PSS and P. M. Ajayan for
the use of his arc-discharge equipment | en |
dc.format.extent | 1393-1395 | en |
dc.language.iso | en | en |
dc.relation.ispartofseries | Applied Physics Letters; | |
dc.relation.ispartofseries | 77; | |
dc.relation.ispartofseries | 9; | |
dc.rights | Y | en |
dc.subject | SWNT | en |
dc.subject.lcsh | SWNT | en |
dc.title | Hole blocking in carbon nanotube-polymer composite organic light-emitting diodes based on poly (m-phenylene vinylene-co-2, 5-dioctoxy-p-phenylene vinylene) | en |
dc.type | Journal Article | en |
dc.type.supercollection | scholarly_publications | en |
dc.type.supercollection | refereed_publications | en |
dc.identifier.peoplefinderurl | http://people.tcd.ie/wblau | |
dc.identifier.rssinternalid | 85835 | |
dc.identifier.uri | http://hdl.handle.net/2262/66753 | |