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Synthesis and electroluminescent properties of bis(3-N-ethylcarbazolyl)cyanoterephthalidene
- Issue Date
- 1-Mar-2000
- Publisher
- ELSEVIER SCIENCE SA
- Keywords
- electroluminescence; bis(3-N-ethylcarbazolyl)cyanoterephthalidene (BECCP); poly(3,6-N-2-ethylhexylcarbazolyl cyanotere-phthalidene (PECCP); blue emitting material
- Citation
- THIN SOLID FILMS, v.363, no.1-2, pp.90 - 93
- Journal Title
- THIN SOLID FILMS
- Volume
- 363
- Number
- 1-2
- Start Page
- 90
- End Page
- 93
- ISSN
- 0040-6090
- Abstract
- A new blue electroluminescent material analog to poly(3,6-N-2-ethplhexylcarbazolyl cyanotere-phthalidene) (PECCP) was synthesized by a facile reaction of 9-ethyl-3 -carbazole carboxy aldehyde with 1,4-phenylenediacetonitrile. The re suiting bis(3-N-ethylcarbazolyl)cyanoterephthalidene (BECCP) having cyano (electron acceptor part) and carbazole moiety (electron donor part) was characterized by NMR, IR, UV and was vacuum-deposited into thin film of smooth surface. BECCP shows blue PL and EL spectra at 480 nm corresponding to 2.58 eV and typical rectifying diode characteristics in ITO/BECCP/Al devices in both forward and reverse bias. The turn on voltage are +8 V and 4 V when the BECCP layer are 600 and 300 Angstrom thick, respectively. (C) 2000 Elsevier Science S.A, Ail rights reserved.
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Related Researcher
- Kim, Tae Wan
- Engineering (Applied Science)