In:
Research Letters in Materials Science, Hindawi Limited, Vol. 2009 ( 2009), p. 1-4
Abstract:
The efficiency of light-emitting diodes (LEDs) based on poly[(9,9-dioctylfluorenyl-2,7-diyl)- alt -1,4-benzo- { 2, 1 ′ -3 } -thiadiazole)], F8BT, is optimized upon simultaneous doping with a hole and an electron trapping molecule, namely, N, N ′ -Bis(3-methylphenyl)-N, N ′ -diphenylbenzidine and 2-(4-biphenylyl)-5-(4-tert-butylphenyl)-1,3,4-oxadiazole, respectively. It is shown that, for devices with poly(3,4-ethylene dioxythiophene) doped with polystyrene sulfonic acid as hole-injection layer material and magnesium cathodes, the efficiency is nearly doubled (from ca. 2.5 to 3.7 cd/A) upon doping with ca. 0.34% by weight of both compounds.
Type of Medium:
Online Resource
ISSN:
1687-6822
,
1687-6830
Language:
English
Publisher:
Hindawi Limited
Publication Date:
2009
detail.hit.zdb_id:
2394017-7
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