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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/3381
Title: Hexaphenylphenylene dendronised pyrenylamines for efficient organic light-emitting diodes
Authors: Thomas K.R.J.
Velusamy M.
Lin J.T.
Chuen C.H.
Tao Y.-T.
Published in: Journal of Materials Chemistry
Abstract: A series of blue-emitting triarylamines containing pyrene and hexaphenylbenzene dendrons were successfully synthesized by employing the Diels-Alder and palladium catalyzed C-N coupling reactions. They display high glass transition temperatures (>140°C) in differential scanning calorimetry and facile reversible oxidation couple in cyclic voltammetry. They are also thermally stable exhibiting decomposition temperature above 385°C. Efficient blue-emitting electroluminescent devices were fabricated using these novel amines as the hole transporting layer and 1,3,5-tris(N-phenylbenzimidazol-2-yl)benzene (TPBI) as the electron transporting layer. Colour mixing or green emission was observed when tris(8-hydroxyquinoline)aluminium (Alq3) was used as the electron transporting layer. However insertion of a thin layer of TPBI or 1,3,5-tris(4-tert-butylphenyl-1,3,4-oxadiazolyl)benzene (TPOB) in between the HTL and Alq3 layers led to pure blue emission owing to the confinement of recombination inside the HTL layer containing the compounds. © The Royal Society of Chemistry 2005.
Citation: Journal of Materials Chemistry (2005), 15(41): 4453-4459
URI: https://doi.org/10.1039/b509325b
http://repository.iitr.ac.in/handle/123456789/3381
Issue Date: 2005
ISSN: 9599428
Author Scopus IDs: 57203389297
6603305200
7501725859
6701637461
7402420315
Author Affiliations: Thomas, K.R.J., Institute of Chemistry, Academia Sinica, 115 Taipei, Taiwan
Velusamy, M., Institute of Chemistry, Academia Sinica, 115 Taipei, Taiwan
Lin, J.T., Institute of Chemistry, Academia Sinica, 115 Taipei, Taiwan, Department of Chemistry, National Central University, 320 Chungli, Taiwan
Chuen, C.H., Institute of Chemistry, Academia Sinica, 115 Taipei, Taiwan
Tao, Y.-T., Institute of Chemistry, Academia Sinica, 115 Taipei, Taiwan
Corresponding Author: Lin, J.T.; Institute of Chemistry, Academia Sinica, 115 Taipei, Taiwan; email: jtlin@chem.sinica.edu.tw
Appears in Collections:Journal Publications [CY]

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