Effects of solution processing and thermal annealing on the phosphorescence of iridium(III) complex-cored dendrimer films

Jean Charles Maurice Ribierre, C. J. Yates, A. Ruseckas, S. V. Staton, P. L. Burn, I. D.W. Samuel

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We present evidence that the photoluminescence (PL) spectrum, PL kinetics and PL efficiency of solution-cast films of a phosphorescent fac-tris(2-phenylpyridyl)iridium(III)-cored dendrimer are not affected by the choice of solvent and thermal annealing. In contrast, when the dendrimer is dispersed into a 4,4′-bis(N-carbazolyl)biphenyl (CBP) host, thermal annealing induces phase separation at a micrometer scale, which results in incomplete energy transfer from CBP to the dendrimer. The insensitivity of the dendrimer film morphology and PL properties to the casting conditions and thermal treatment shows the advantage of host-free electrophosphorescent dendrimers for the further development of light-emitting displays, whilst blended systems are potentially more suitable for photovoltaic applications.

Original languageEnglish
Pages (from-to)62-66
Number of pages5
JournalOrganic Electronics
Volume11
Issue number1
DOIs
Publication statusPublished - Jan 1 2010

Fingerprint

Dendrimers
Iridium
Phosphorescence
dendrimers
phosphorescence
iridium
Annealing
Photoluminescence
annealing
photoluminescence
Processing
Phase separation
Energy transfer
micrometers
casts
Casting
energy transfer
Display devices
Heat treatment
Hot Temperature

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

Cite this

Effects of solution processing and thermal annealing on the phosphorescence of iridium(III) complex-cored dendrimer films. / Ribierre, Jean Charles Maurice; Yates, C. J.; Ruseckas, A.; Staton, S. V.; Burn, P. L.; Samuel, I. D.W.

In: Organic Electronics, Vol. 11, No. 1, 01.01.2010, p. 62-66.

Research output: Contribution to journalArticle

Ribierre, Jean Charles Maurice ; Yates, C. J. ; Ruseckas, A. ; Staton, S. V. ; Burn, P. L. ; Samuel, I. D.W. / Effects of solution processing and thermal annealing on the phosphorescence of iridium(III) complex-cored dendrimer films. In: Organic Electronics. 2010 ; Vol. 11, No. 1. pp. 62-66.
@article{acc8011eea2a4672af6d12591552926c,
title = "Effects of solution processing and thermal annealing on the phosphorescence of iridium(III) complex-cored dendrimer films",
abstract = "We present evidence that the photoluminescence (PL) spectrum, PL kinetics and PL efficiency of solution-cast films of a phosphorescent fac-tris(2-phenylpyridyl)iridium(III)-cored dendrimer are not affected by the choice of solvent and thermal annealing. In contrast, when the dendrimer is dispersed into a 4,4′-bis(N-carbazolyl)biphenyl (CBP) host, thermal annealing induces phase separation at a micrometer scale, which results in incomplete energy transfer from CBP to the dendrimer. The insensitivity of the dendrimer film morphology and PL properties to the casting conditions and thermal treatment shows the advantage of host-free electrophosphorescent dendrimers for the further development of light-emitting displays, whilst blended systems are potentially more suitable for photovoltaic applications.",
author = "Ribierre, {Jean Charles Maurice} and Yates, {C. J.} and A. Ruseckas and Staton, {S. V.} and Burn, {P. L.} and Samuel, {I. D.W.}",
year = "2010",
month = "1",
day = "1",
doi = "10.1016/j.orgel.2009.09.027",
language = "English",
volume = "11",
pages = "62--66",
journal = "Organic Electronics: physics, materials, applications",
issn = "1566-1199",
publisher = "Elsevier",
number = "1",

}

TY - JOUR

T1 - Effects of solution processing and thermal annealing on the phosphorescence of iridium(III) complex-cored dendrimer films

AU - Ribierre, Jean Charles Maurice

AU - Yates, C. J.

AU - Ruseckas, A.

AU - Staton, S. V.

AU - Burn, P. L.

AU - Samuel, I. D.W.

PY - 2010/1/1

Y1 - 2010/1/1

N2 - We present evidence that the photoluminescence (PL) spectrum, PL kinetics and PL efficiency of solution-cast films of a phosphorescent fac-tris(2-phenylpyridyl)iridium(III)-cored dendrimer are not affected by the choice of solvent and thermal annealing. In contrast, when the dendrimer is dispersed into a 4,4′-bis(N-carbazolyl)biphenyl (CBP) host, thermal annealing induces phase separation at a micrometer scale, which results in incomplete energy transfer from CBP to the dendrimer. The insensitivity of the dendrimer film morphology and PL properties to the casting conditions and thermal treatment shows the advantage of host-free electrophosphorescent dendrimers for the further development of light-emitting displays, whilst blended systems are potentially more suitable for photovoltaic applications.

AB - We present evidence that the photoluminescence (PL) spectrum, PL kinetics and PL efficiency of solution-cast films of a phosphorescent fac-tris(2-phenylpyridyl)iridium(III)-cored dendrimer are not affected by the choice of solvent and thermal annealing. In contrast, when the dendrimer is dispersed into a 4,4′-bis(N-carbazolyl)biphenyl (CBP) host, thermal annealing induces phase separation at a micrometer scale, which results in incomplete energy transfer from CBP to the dendrimer. The insensitivity of the dendrimer film morphology and PL properties to the casting conditions and thermal treatment shows the advantage of host-free electrophosphorescent dendrimers for the further development of light-emitting displays, whilst blended systems are potentially more suitable for photovoltaic applications.

UR - http://www.scopus.com/inward/record.url?scp=72649091416&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=72649091416&partnerID=8YFLogxK

U2 - 10.1016/j.orgel.2009.09.027

DO - 10.1016/j.orgel.2009.09.027

M3 - Article

AN - SCOPUS:72649091416

VL - 11

SP - 62

EP - 66

JO - Organic Electronics: physics, materials, applications

JF - Organic Electronics: physics, materials, applications

SN - 1566-1199

IS - 1

ER -