Please use this identifier to cite or link to this item: https://doi.org/10.1021/ma9907439
Title: Facile synthetic route to a novel electroluminescent polymer-poly(p-phenylenevinylene) containing a fully conjugated aromatic oxadiazole side chain
Authors: Meng, H.
Yu, W.-L. 
Huang, W. 
Issue Date: 28-Dec-1999
Citation: Meng, H., Yu, W.-L., Huang, W. (1999-12-28). Facile synthetic route to a novel electroluminescent polymer-poly(p-phenylenevinylene) containing a fully conjugated aromatic oxadiazole side chain. Macromolecules 32 (26) : 8841-8847. ScholarBank@NUS Repository. https://doi.org/10.1021/ma9907439
Abstract: Herein we report a facile synthetic route to a new conjugated polymer, poly{2-[5′-(2″-octyloxy) phenyl)-1′,3′,4′-oxadiazole-2′-yl]-1, 4-phenylenevinylene)} (OPO-PPV), in which a high-electron-affinity aromatic oxadiazole moiety is attached on the PPV backbone as side chain. It is demonstrated that OPO-PPV is a new polymeric material with balanced charge injection for the application as emissive material in single-layer light-emitting diodes (LEDs). The present synthesis of OPO-PPV reveals a promising approach to balance the charge injection between electrons and holes into electroluminescent layers in polymer LEDs by controlling the intrinsic properties of light-emitting materials. The NMR (13C and 1H) spectra of OPO-PPV demonstrate a well-defined structure in the polymer. The polymer exhibits good thermal stability (stable up to 368 °C in nitrogen) and high glass-transition temperature (170 °C). Both the absorption and photoluminescence spectra of the polymer have been studied. Cyclic voltammetry (CV) has been employed to estimate the highest occupied and lowest unoccupied molecular orbital energy levels of OPO-PPV. A comparison of the electrochemical characteristics with that of poly[2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylenevinylene] (MEH-PPV) is also discussed. A single-layer LED device ITO/ OPO-PPV/Al is successfully fabricated. The device emits visible yellow-orange light above the bias voltage of 4.0 V under ambient conditions.
Source Title: Macromolecules
URI: http://scholarbank.nus.edu.sg/handle/10635/93805
ISSN: 00249297
DOI: 10.1021/ma9907439
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

79
checked on Dec 17, 2018

WEB OF SCIENCETM
Citations

74
checked on Dec 17, 2018

Page view(s)

33
checked on Oct 12, 2018

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.