Optical spectroscopy of triplet excitons and charged excitations in poly(p-phenylenevinylene) light-emitting diodes

A. R. Brown; K. Pichler; N. C. Greenham; D. D.C. Bradley; R. H. Friend; A. B. Holmes

doi:10.1016/0009-2614(93)89100-V

Optical spectroscopy of triplet excitons and charged excitations in poly(p-phenylenevinylene) light-emitting diodes

A. R. Brown, K. Pichler, N. C. Greenham, D. D.C. Bradley, R. H. Friend, A. B. Holmes

Research output: Contribution to journal › Article › peer-review

151 Scopus citations

Abstract

Sub-gap absorption is measured under forward drive conditions in electroluminescent devices fabricated from thin films of poly(p-phenylenevinylene) sandwiched between electrodes of indium/tin oxide and calcium. Quantitative concentrations of excitations are obtained. Absorption seen at 1.37 eV is due to an allowed transition to a higher-lying state of the excitons formed by capture of positive and negative charges in the polymer. Absorption bands at 0.65 and 1.55 eV are assigned to charged bipolarons which do not directly participate in the electroluminescence process. © 1993.

Original language	English (US)
Journal	Chemical Physics Letters
Volume	210
Issue number	1-3
DOIs	https://doi.org/10.1016/0009-2614(93)89100-V
State	Published - Jul 23 1993
Externally published	Yes

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Generated from Scopus record by KAUST IRTS on 2019-11-27

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title = "Optical spectroscopy of triplet excitons and charged excitations in poly(p-phenylenevinylene) light-emitting diodes",

abstract = "Sub-gap absorption is measured under forward drive conditions in electroluminescent devices fabricated from thin films of poly(p-phenylenevinylene) sandwiched between electrodes of indium/tin oxide and calcium. Quantitative concentrations of excitations are obtained. Absorption seen at 1.37 eV is due to an allowed transition to a higher-lying state of the excitons formed by capture of positive and negative charges in the polymer. Absorption bands at 0.65 and 1.55 eV are assigned to charged bipolarons which do not directly participate in the electroluminescence process. {\textcopyright} 1993.",

author = "Brown, {A. R.} and K. Pichler and Greenham, {N. C.} and Bradley, {D. D.C.} and Friend, {R. H.} and Holmes, {A. B.}",

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year = "1993",

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doi = "10.1016/0009-2614(93)89100-V",

language = "English (US)",

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T1 - Optical spectroscopy of triplet excitons and charged excitations in poly(p-phenylenevinylene) light-emitting diodes

AU - Brown, A. R.

AU - Pichler, K.

AU - Greenham, N. C.

AU - Bradley, D. D.C.

AU - Friend, R. H.

AU - Holmes, A. B.

N1 - Generated from Scopus record by KAUST IRTS on 2019-11-27

PY - 1993/7/23

Y1 - 1993/7/23

N2 - Sub-gap absorption is measured under forward drive conditions in electroluminescent devices fabricated from thin films of poly(p-phenylenevinylene) sandwiched between electrodes of indium/tin oxide and calcium. Quantitative concentrations of excitations are obtained. Absorption seen at 1.37 eV is due to an allowed transition to a higher-lying state of the excitons formed by capture of positive and negative charges in the polymer. Absorption bands at 0.65 and 1.55 eV are assigned to charged bipolarons which do not directly participate in the electroluminescence process. © 1993.

AB - Sub-gap absorption is measured under forward drive conditions in electroluminescent devices fabricated from thin films of poly(p-phenylenevinylene) sandwiched between electrodes of indium/tin oxide and calcium. Quantitative concentrations of excitations are obtained. Absorption seen at 1.37 eV is due to an allowed transition to a higher-lying state of the excitons formed by capture of positive and negative charges in the polymer. Absorption bands at 0.65 and 1.55 eV are assigned to charged bipolarons which do not directly participate in the electroluminescence process. © 1993.

UR - https://linkinghub.elsevier.com/retrieve/pii/000926149389100V

UR - http://www.scopus.com/inward/record.url?scp=0002632643&partnerID=8YFLogxK

U2 - 10.1016/0009-2614(93)89100-V

DO - 10.1016/0009-2614(93)89100-V

M3 - Article

SN - 0009-2614

VL - 210

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 1-3

ER -

Optical spectroscopy of triplet excitons and charged excitations in poly(p-phenylenevinylene) light-emitting diodes

Abstract

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