Effect of plasma treatment on the electrical and electroluminescent properties of poly(p-phenylene vinylene) light emitting diodes

Authors
Atreya, M Li, S Kang, ET Neoh, KG Tan, KL
Citation
M. Atreya et al., Effect of plasma treatment on the electrical and electroluminescent properties of poly(p-phenylene vinylene) light emitting diodes, POLYM DEGR, 63(1), 1999, pp. 53-59
Citations number
26
Categorie Soggetti
Organic Chemistry/Polymer Science
Journal title
POLYMER DEGRADATION AND STABILITY
ISSN journal
01413910 → ACNP
Volume
63
Issue
1
Year of publication
1999
Pages
53 - 59
Database
ISI
SICI code
0141-3910(1999)63:1<53:EOPTOT>2.0.ZU;2-W
Abstract
The influence of argon and oxygen plasma treatments of the polymer surfaces on the electrical and electroluminescent properties of poly(p-phenylene vi nylene) (PPV) light emitting diodes (LEDs) has been studied. It was observe d that mild Ar plasma treatment of the polymer prior to deposition of the c athode could reduce the electroluminescent intensity of the PPV LED by an o rder of magnitude. Similar results were observed for the oxygen plasma trea ted samples. Attempts were made to correlate this plasma-induced degradatio n phenomenon of the electroluminescent properties of PPV with changes in th e surface chemical structures of the polymer, as revealed by the angle-reso lved X-ray photoelectron spectroscopy (XPS). (C) 1998 Elsevier Science Ltd. All rights reserved.