Transient and AC electroluminescence in pyridylene copolymers of PPV

H. Chayet, E. Z. Faraggi, H. Hong, V. N. Savvate'ev, Ronny Neumann, Y. Avny, D. Davidov

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

We present transient and AC electroluminescence (EL) measurements on thin films of a newly synthesized copolymer of PPV where pyridine units were incorporated into the polymer backbone (co(PyPV)), and compare it to the EL of thin films of PPV prepared by the method of self-assembly and by spin casting. Transient EL under voltage pulses of co(PyPV) indicates that positive charge carriers have lower mobility than in PPV. Under pulses and AC square wave voltage we have observed a new type of prompt transient EL at the switch-off of the voltage. The transient EL effects are explained by the presence of non-bonding electrons in the polymer chain of co(PyPV). Co(PyPV) based LEDs have improved EL yield compared to PPV. Operations with sine AC voltage mode up to 10 kHz show better stability as compared to DC, without loss in efficiency.

Original languageEnglish
Pages (from-to)621-622
Number of pages2
JournalSynthetic Metals
Volume84
Issue number1-3
Publication statusPublished - Jan 1997

Fingerprint

Electroluminescence
electroluminescence
alternating current
copolymers
Copolymers
Electric potential
electric potential
Polymers
Thin films
square waves
polymers
thin films
pulses
Charge carriers
Pyridine
Self assembly
Light emitting diodes
self assembly
charge carriers
pyridines

Keywords

  • Electroluminescence
  • Poly(phenylene vinylene) and derivatives
  • Transport measurements

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Polymers and Plastics

Cite this

Chayet, H., Faraggi, E. Z., Hong, H., Savvate'ev, V. N., Neumann, R., Avny, Y., & Davidov, D. (1997). Transient and AC electroluminescence in pyridylene copolymers of PPV. Synthetic Metals, 84(1-3), 621-622.

Transient and AC electroluminescence in pyridylene copolymers of PPV. / Chayet, H.; Faraggi, E. Z.; Hong, H.; Savvate'ev, V. N.; Neumann, Ronny; Avny, Y.; Davidov, D.

In: Synthetic Metals, Vol. 84, No. 1-3, 01.1997, p. 621-622.

Research output: Contribution to journalArticle

Chayet, H, Faraggi, EZ, Hong, H, Savvate'ev, VN, Neumann, R, Avny, Y & Davidov, D 1997, 'Transient and AC electroluminescence in pyridylene copolymers of PPV', Synthetic Metals, vol. 84, no. 1-3, pp. 621-622.
Chayet H, Faraggi EZ, Hong H, Savvate'ev VN, Neumann R, Avny Y et al. Transient and AC electroluminescence in pyridylene copolymers of PPV. Synthetic Metals. 1997 Jan;84(1-3):621-622.
Chayet, H. ; Faraggi, E. Z. ; Hong, H. ; Savvate'ev, V. N. ; Neumann, Ronny ; Avny, Y. ; Davidov, D. / Transient and AC electroluminescence in pyridylene copolymers of PPV. In: Synthetic Metals. 1997 ; Vol. 84, No. 1-3. pp. 621-622.
@article{ace55d95c88a4f329feb5f67e0b22034,
title = "Transient and AC electroluminescence in pyridylene copolymers of PPV",
abstract = "We present transient and AC electroluminescence (EL) measurements on thin films of a newly synthesized copolymer of PPV where pyridine units were incorporated into the polymer backbone (co(PyPV)), and compare it to the EL of thin films of PPV prepared by the method of self-assembly and by spin casting. Transient EL under voltage pulses of co(PyPV) indicates that positive charge carriers have lower mobility than in PPV. Under pulses and AC square wave voltage we have observed a new type of prompt transient EL at the switch-off of the voltage. The transient EL effects are explained by the presence of non-bonding electrons in the polymer chain of co(PyPV). Co(PyPV) based LEDs have improved EL yield compared to PPV. Operations with sine AC voltage mode up to 10 kHz show better stability as compared to DC, without loss in efficiency.",
keywords = "Electroluminescence, Poly(phenylene vinylene) and derivatives, Transport measurements",
author = "H. Chayet and Faraggi, {E. Z.} and H. Hong and Savvate'ev, {V. N.} and Ronny Neumann and Y. Avny and D. Davidov",
year = "1997",
month = "1",
language = "English",
volume = "84",
pages = "621--622",
journal = "Synthetic Metals",
issn = "0379-6779",
publisher = "Elsevier BV",
number = "1-3",

}

TY - JOUR

T1 - Transient and AC electroluminescence in pyridylene copolymers of PPV

AU - Chayet, H.

AU - Faraggi, E. Z.

AU - Hong, H.

AU - Savvate'ev, V. N.

AU - Neumann, Ronny

AU - Avny, Y.

AU - Davidov, D.

PY - 1997/1

Y1 - 1997/1

N2 - We present transient and AC electroluminescence (EL) measurements on thin films of a newly synthesized copolymer of PPV where pyridine units were incorporated into the polymer backbone (co(PyPV)), and compare it to the EL of thin films of PPV prepared by the method of self-assembly and by spin casting. Transient EL under voltage pulses of co(PyPV) indicates that positive charge carriers have lower mobility than in PPV. Under pulses and AC square wave voltage we have observed a new type of prompt transient EL at the switch-off of the voltage. The transient EL effects are explained by the presence of non-bonding electrons in the polymer chain of co(PyPV). Co(PyPV) based LEDs have improved EL yield compared to PPV. Operations with sine AC voltage mode up to 10 kHz show better stability as compared to DC, without loss in efficiency.

AB - We present transient and AC electroluminescence (EL) measurements on thin films of a newly synthesized copolymer of PPV where pyridine units were incorporated into the polymer backbone (co(PyPV)), and compare it to the EL of thin films of PPV prepared by the method of self-assembly and by spin casting. Transient EL under voltage pulses of co(PyPV) indicates that positive charge carriers have lower mobility than in PPV. Under pulses and AC square wave voltage we have observed a new type of prompt transient EL at the switch-off of the voltage. The transient EL effects are explained by the presence of non-bonding electrons in the polymer chain of co(PyPV). Co(PyPV) based LEDs have improved EL yield compared to PPV. Operations with sine AC voltage mode up to 10 kHz show better stability as compared to DC, without loss in efficiency.

KW - Electroluminescence

KW - Poly(phenylene vinylene) and derivatives

KW - Transport measurements

UR - http://www.scopus.com/inward/record.url?scp=0030645386&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030645386&partnerID=8YFLogxK

M3 - Article

VL - 84

SP - 621

EP - 622

JO - Synthetic Metals

JF - Synthetic Metals

SN - 0379-6779

IS - 1-3

ER -