Optical properties, spectral narrowing of photoluminescence and blue electroluminescence of poly(phenylene pyridine) derivatives

Authors
Fujii, A Ootake, R Fujisawa, T Ozaki, M Ohmori, Y Laga, T Yoshino, K Lu, HF Chan, HSO Ng, SC
Citation
A. Fujii et al., Optical properties, spectral narrowing of photoluminescence and blue electroluminescence of poly(phenylene pyridine) derivatives, APPL PHYS L, 77(5), 2000, pp. 660-662
Citations number
14
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
00036951 → ACNP
Volume
77
Issue
5
Year of publication
2000
Pages
660 - 662
Database
ISI
SICI code
0003-6951(20000731)77:5<660:OPSNOP>2.0.ZU;2-2
Abstract
Optical properties of poly(phenylene pyridine) derivatives, poly(2,5-dialko xy-1,4phenylene-alt-2,5-pyridine) (PHOnPY25), such as optical absorption, p hotoluminescence (PL), and electroluminescence (EL), have been studied. The electronic energy structures of PHOnPY25 have been determined by optical a nd electrochemical measurements. Strong PL with high quantum efficiency has been clarified in the films, and spectral narrowing has been observed by p ulse excitation of a nitrogen laser. Intense blue EL has also been demonstr ated. (C) 2000 American Institute of Physics. [S0003-6951(00)04031-6].