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New conjugated materials containing cyano substituents for light-emitting diodes
Date
2006-02-01
Author
Çırpan, Ali
RATHNAYAKE, Hemali P.
Günbaş, Emrullah Görkem
LAHTI, Paul M.
KARASZ, Frank E.
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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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New electroluminescent cyano-substituted phenylenevinylene (PV) monomeric and oligomeric chromophores, 1–3, were synthesized by Knoevenagel condensation and investigated in terms of their photoluminescence (PL) and electroluminescence (EL) behavior. All show PL emission maxima between 463 and 471 nm in solution with quantum efficiencies of 0.65, 0.46 and 0.68, respectively. EL maxima in an LED configuration ITO/PEDOT–PSS/1–3/Ca–Al were 507, 518 and 551 nm with luminance efficiencies 0.01, 0.05 and 0.02 cd/A, respectively.
Subject Keywords
Mechanical Engineering
,
Materials Chemistry
,
Mechanics of Materials
,
Electronic, Optical and Magnetic Materials
,
Condensed Matter Physics
,
Metals and Alloys
URI
https://hdl.handle.net/11511/34936
Journal
Synthetic Metals
DOI
https://doi.org/10.1016/j.synthmet.2005.12.008
Collections
Department of Chemistry, Article