Investigation of efficiency and photostability in polymer films

S. M. Lipson; D. F. O'Brien; H. J. Byrne; A. P. Davey; W. J. Blau

doi:10.1016/S0379-6779(99)00418-X

Investigation of efficiency and photostability in polymer films

S. M. Lipson, D. F. O'Brien, H. J. Byrne, A. P. Davey, W. J. Blau

Physical to Life Sciences Research Hub

Research output: Contribution to journal › Conference article › peer-review

Abstract

The photodegradation mechanism and luminescence efficiency of a series of thin polymer films prepared under a variety of conditions was studied. The conjugated polymer, poly(m-phenylene-co-2,5-dioctoxy-p-phenylenevinylene), is shown by infrared spectroscopy to degrade via the chain scission of the carbon double bond along the polymer backbone. To reduce photodegradation effects films were prepared using argon (Ar) gas and were investigated in air and an oxygen free environment. The initial photoluminescence (PL) efficiency increased by 70% for Ar treated films. The PL decay in air was bi-exponential in nature, with a sharp initial decay linked to atmospheric oxygen and a longer second decay linked to oxygen embedded in the film. This novel preparation technique coupled with device encapsulation should significantly improved both device efficiency and lifetime.

Original language	English
Pages (from-to)	553-557
Number of pages	5
Journal	Synthetic Metals
Volume	111
DOIs	https://doi.org/10.1016/S0379-6779(99)00418-X
Publication status	Published - 1 Jun 2000
Event	2nd International Conference on Electroluminescence of Molecular Materials and Related Phenomena (ICEL-2) - Sheffield, UK Duration: 15 May 1999 → 18 May 1999

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title = "Investigation of efficiency and photostability in polymer films",

abstract = "The photodegradation mechanism and luminescence efficiency of a series of thin polymer films prepared under a variety of conditions was studied. The conjugated polymer, poly(m-phenylene-co-2,5-dioctoxy-p-phenylenevinylene), is shown by infrared spectroscopy to degrade via the chain scission of the carbon double bond along the polymer backbone. To reduce photodegradation effects films were prepared using argon (Ar) gas and were investigated in air and an oxygen free environment. The initial photoluminescence (PL) efficiency increased by 70% for Ar treated films. The PL decay in air was bi-exponential in nature, with a sharp initial decay linked to atmospheric oxygen and a longer second decay linked to oxygen embedded in the film. This novel preparation technique coupled with device encapsulation should significantly improved both device efficiency and lifetime.",

author = "Lipson, {S. M.} and O'Brien, {D. F.} and Byrne, {H. J.} and Davey, {A. P.} and Blau, {W. J.}",

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note = "2nd International Conference on Electroluminescence of Molecular Materials and Related Phenomena (ICEL-2) ; Conference date: 15-05-1999 Through 18-05-1999",

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TY - JOUR

T1 - Investigation of efficiency and photostability in polymer films

AU - Lipson, S. M.

AU - O'Brien, D. F.

AU - Byrne, H. J.

AU - Davey, A. P.

AU - Blau, W. J.

PY - 2000/6/1

Y1 - 2000/6/1

N2 - The photodegradation mechanism and luminescence efficiency of a series of thin polymer films prepared under a variety of conditions was studied. The conjugated polymer, poly(m-phenylene-co-2,5-dioctoxy-p-phenylenevinylene), is shown by infrared spectroscopy to degrade via the chain scission of the carbon double bond along the polymer backbone. To reduce photodegradation effects films were prepared using argon (Ar) gas and were investigated in air and an oxygen free environment. The initial photoluminescence (PL) efficiency increased by 70% for Ar treated films. The PL decay in air was bi-exponential in nature, with a sharp initial decay linked to atmospheric oxygen and a longer second decay linked to oxygen embedded in the film. This novel preparation technique coupled with device encapsulation should significantly improved both device efficiency and lifetime.

AB - The photodegradation mechanism and luminescence efficiency of a series of thin polymer films prepared under a variety of conditions was studied. The conjugated polymer, poly(m-phenylene-co-2,5-dioctoxy-p-phenylenevinylene), is shown by infrared spectroscopy to degrade via the chain scission of the carbon double bond along the polymer backbone. To reduce photodegradation effects films were prepared using argon (Ar) gas and were investigated in air and an oxygen free environment. The initial photoluminescence (PL) efficiency increased by 70% for Ar treated films. The PL decay in air was bi-exponential in nature, with a sharp initial decay linked to atmospheric oxygen and a longer second decay linked to oxygen embedded in the film. This novel preparation technique coupled with device encapsulation should significantly improved both device efficiency and lifetime.

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U2 - 10.1016/S0379-6779(99)00418-X

DO - 10.1016/S0379-6779(99)00418-X

M3 - Conference article

AN - SCOPUS:0033688326

SN - 0379-6779

VL - 111

SP - 553

EP - 557

JO - Synthetic Metals

JF - Synthetic Metals

T2 - 2nd International Conference on Electroluminescence of Molecular Materials and Related Phenomena (ICEL-2)

Y2 - 15 May 1999 through 18 May 1999

ER -

Investigation of efficiency and photostability in polymer films

Abstract

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