Blue polymer light-emitting diodes from poly(9,9-dihexylfluorene-alt-co-2,5-didecyloxy-para-phenylene)

Authors
Yu, WL Cao, Y Pei, JA Huang, W Heeger, AJ
Citation
Wl. Yu et al., Blue polymer light-emitting diodes from poly(9,9-dihexylfluorene-alt-co-2,5-didecyloxy-para-phenylene), APPL PHYS L, 75(21), 1999, pp. 3270-3272
Citations number
16
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
00036951 → ACNP
Volume
75
Issue
21
Year of publication
1999
Pages
3270 - 3272
Database
ISI
SICI code
0003-6951(19991122)75:21<3270:BPLDFP>2.0.ZU;2-6
Abstract
Deep blue photoluminescence and electroluminescence are demonstrated from a soluble conjugated polymer, poly(9,9-dihexylfluorene-alt-co-2,5-didecyloxy -para-phenylene). The PL quantum efficiency is approximately 40%. Cyclic vo ltammetry measurements indicate that the highest occupied molecular orbital and lowest unoccupied molecular orbital energies are 5.66 and 2.62 eV belo w vacuum, respectively. Single-layer and multilayer light-emitting diodes e mit deep blue light (peak at similar to 420 nm). (C) 1999 American Institut e of Physics. [S0003-6951(99)04547-7].