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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/3369
Title: Fluoranthene-based triarylamines as hole-transporting and emitting materials for efficient electroluminescent devices
Authors: Kapoor N.
Thomas K.R.J.
Published in: New Journal of Chemistry
Abstract: Electroluminescent materials based on the fluoranthene core and containing triarylamine segments were synthesized and characterized by IR, NMR, UV-Vis, and emission spectroscopic, electrochemical, and thermal studies. The electronic absorption and emission characteristics of the new functional materials were affected by the nature of the chromophore present on the fluoranthene nucleus. Incorporation of amine functionality red shifted the absorption and emission profiles significantly, while a marginal bathochromic shift was noticed for the cyano substituent. The redox propensity of the dyes was also altered by the nature of the substituents. The electron donating amino group imparted facile oxidation while the electron-withdrawing cyano unit rendered reduction capability. The decomposition temperatures (Td) observed for the dyes are exceptionally high (406-527 °C). Electroluminescent devices incorporating two amines, N-(4-tert-butylphenyl)-N-(naphthalen-1-yl)-7,8,9,10- tetraphenylfluoranthen-3-amine (7c) and N-phenyl-N-(7,8,9,10- tetraphenylfluoranthen-3-yl)pyren-1-amine (7d) with the configurations ITO/7c or 7d (40 nm)/TPBI or Alq3 (40 nm)/LiF (1 nm)/Al (150 nm) were fabricated and displayed bright greenish yellow emission originating from the dyes. © The Royal Society of Chemistry and the Centre National de la Recherche Scientifique.
Citation: New Journal of Chemistry (2010), 34(12): 2739-2748
URI: https://doi.org/10.1039/c0nj00415d
http://repository.iitr.ac.in/handle/123456789/3369
Issue Date: 2010
ISSN: 11440546
Author Scopus IDs: 36705999100
57203389297
Author Affiliations: Kapoor, N., Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee - 247 667, India
Thomas, K.R.J., Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee - 247 667, India
Corresponding Author: Thomas, K. R. J.; Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee - 247 667, India; email: krjt8fcy@iitr.ernet.in
Appears in Collections:Journal Publications [CY]

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