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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/3318
Title: Deep-blue emitting pyrene-benzimidazole conjugates for solution processed organic light-emitting diodes
Authors: Karthik D.
Thomas K.R.J.
Jou J.-H.
Kumar S.
Chen Y.-L.
Jou Y.-C.
Published in: RSC Advances
Abstract: New pyrene-benzimidazole conjugates containing different Ï€-linkers such as phenyl, thiophene and triarylamine were synthesized and characterized by photophysical, electrochemical, thermal and electroluminescence studies. Triarylamine-containing dyes displayed red-shifted absorption spectra and positive solvatochromism in emission spectra due to the pronounced intramolecular charge transfer (ICT) from the triarylamine donor to pyrene acceptor in the excited state. All derivatives were used as emitting dopants in multilayered organic light-emitting diodes exhibiting deep blue electroluminescence. The solution processed device fabricated by utilizing 1-phenyl-2-(pyren-1-yl)-1H-benzo[d]imidazole as an emitter displayed promising deep blue emission characteristics with a maximum luminance of 714 cd m-2, external quantum efficiency of 1.5%, CIE coordinates of (0.16, 0.05) at 100 cd m-2 and 100% color saturation. © The Royal Society of Chemistry 2015.
Citation: RSC Advances (2015), 5(12): 8727-8738
URI: https://doi.org/10.1039/c4ra11043a
http://repository.iitr.ac.in/handle/123456789/3318
Issue Date: 2015
Publisher: Royal Society of Chemistry
ISSN: 20462069
Author Scopus IDs: 57195605812
57203389297
35083609400
57209547997
56484852800
37097330600
Author Affiliations: Karthik, D., Organic Materials Chemistry, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, 247 667, India
Thomas, K.R.J., Organic Materials Chemistry, Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, 247 667, India
Jou, J.-H., Department of Material Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan
Kumar, S., Department of Material Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan
Chen, Y.-L., Department of Material Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan
Jou, Y.-C., Department of Material Science and Engineering, National Tsing Hua University, Hsinchu, 30013, Taiwan
Corresponding Author: Thomas, K.R.J.; Organic Materials Chemistry, Department of Chemistry, Indian Institute of Technology RoorkeeIndia
Appears in Collections:Journal Publications [CY]

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