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Synthesis, structure, and optoelectronic properties of a new twistacene 1,2,3,4,6,13-hexaphenyl-7 : 8,11 : 12-bisbenzo-pentacene

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Synthesis, structure, and optoelectronic properties of a new twistacene 1,2,3,4,6,13-hexaphenyl-7 : 8,11 : 12-bisbenzo-pentacene

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dc.contributor.author Xiao, Jinchong
dc.contributor.author Divayana, Yoga
dc.contributor.author Zhang, Qichun
dc.contributor.author Doung, Hieu M.
dc.contributor.author Zhang, Hua
dc.contributor.author Boey, Freddy Yin Chiang
dc.contributor.author Sun, Xiaowei
dc.contributor.author Wudl, Fred
dc.date.accessioned 2012-08-14T04:30:25Z
dc.date.available 2012-08-14T04:30:25Z
dc.date.copyright 2010
dc.date.issued 2012-08-14
dc.identifier.citation Xiao, J., Divayana, Y., Zhang, Q., Doung, H. M., Zhang, H., Boey, F. Y. C., et al. (2010). Synthesis, structure, and optoelectronic properties of a new twistacene 1,2,3,4,6,13-hexaphenyl-7 : 8,11 : 12-bisbenzo-pentacene. J. Mater. Chem., 20, 8167–8170.
dc.identifier.uri http://hdl.handle.net/10220/8386
dc.description.abstract We report the synthesis, optical and electrochemical properties, as well as the fabrication of light-emitting devices for a new twistacene 1,2,3,4,6,13-hexaphenyl-7 : 8,11 : 12-bisbenzo-pentacene (HBP 1). Its structure, determined by X-ray crystallography, confirmed that this material has a twisted topology with the torsion angle as high as 23.0 ᵒ. HBP 1 showed bright green emission both in solution and solid state. The HOMO–LUMO gap of HBP 1 calculated from the difference between the half-wave redox potentials (E1/2 ox = +0.74 eV and E1/2 red = -1.93 eV) is 2.67 eV, which is in good agreement with the band gap, 2.64 eV, derived from the UV-Vis absorption data. Organic light emitting devices using HBP 1 as the emitters have been fabricated. The results revealed that twistacenes are promising materials to enhance the efficiency of OLEDs.
dc.language.iso en
dc.relation.ispartofseries Journal of materials chemistry
dc.rights © 2010 The Royal Society of Chemistry. This is the author created version of a work that has been peer reviewed and accepted for publication by Journal of Materials Chemistry, The Royal Society of Chemistry. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: http://dx.doi.org/10.1039/c0jm01460e.
dc.subject DRNTU::Engineering::Materials.
dc.title Synthesis, structure, and optoelectronic properties of a new twistacene 1,2,3,4,6,13-hexaphenyl-7 : 8,11 : 12-bisbenzo-pentacene
dc.type Journal Article
dc.contributor.school School of Materials Science and Engineering
dc.identifier.doi http://dx.doi.org/10.1039/c0jm01460e
dc.description.version Accepted version

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