Synthesis, structure, and optoelectronic properties of a new twistacene 1,2,3,4,6,13-hexaphenyl-7 : 8,11 : 12-bisbenzo-pentacene
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-ra...
| Main Authors: | , , , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2012
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/94262 http://hdl.handle.net/10220/8386 |
| _version_ | 1826122246938165248 |
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| author | Xiao, Jinchong Divayana, Yoga Zhang, Qichun Doung, Hieu M. Zhang, Hua Boey, Freddy Yin Chiang Sun, Xiaowei Wudl, Fred |
| author2 | School of Materials Science & Engineering |
| author_facet | School of Materials Science & Engineering Xiao, Jinchong Divayana, Yoga Zhang, Qichun Doung, Hieu M. Zhang, Hua Boey, Freddy Yin Chiang Sun, Xiaowei Wudl, Fred |
| author_sort | Xiao, Jinchong |
| collection | NTU |
| description | 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. |
| first_indexed | 2024-10-01T05:45:21Z |
| format | Journal Article |
| id | ntu-10356/94262 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T05:45:21Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | ntu-10356/942622020-06-01T10:26:39Z Synthesis, structure, and optoelectronic properties of a new twistacene 1,2,3,4,6,13-hexaphenyl-7 : 8,11 : 12-bisbenzo-pentacene Xiao, Jinchong Divayana, Yoga Zhang, Qichun Doung, Hieu M. Zhang, Hua Boey, Freddy Yin Chiang Sun, Xiaowei Wudl, Fred School of Materials Science & Engineering DRNTU::Engineering::Materials 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. Accepted version 2012-08-14T04:30:25Z 2019-12-06T18:53:27Z 2012-08-14T04:30:25Z 2019-12-06T18:53:27Z 2010 2010 Journal Article 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. https://hdl.handle.net/10356/94262 http://hdl.handle.net/10220/8386 10.1039/c0jm01460e en Journal of materials chemistry © 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. application/pdf |
| spellingShingle | DRNTU::Engineering::Materials Xiao, Jinchong Divayana, Yoga Zhang, Qichun Doung, Hieu M. Zhang, Hua Boey, Freddy Yin Chiang Sun, Xiaowei Wudl, Fred Synthesis, structure, and optoelectronic properties of a new twistacene 1,2,3,4,6,13-hexaphenyl-7 : 8,11 : 12-bisbenzo-pentacene |
| title | Synthesis, structure, and optoelectronic properties of a new twistacene 1,2,3,4,6,13-hexaphenyl-7 : 8,11 : 12-bisbenzo-pentacene |
| title_full | Synthesis, structure, and optoelectronic properties of a new twistacene 1,2,3,4,6,13-hexaphenyl-7 : 8,11 : 12-bisbenzo-pentacene |
| title_fullStr | Synthesis, structure, and optoelectronic properties of a new twistacene 1,2,3,4,6,13-hexaphenyl-7 : 8,11 : 12-bisbenzo-pentacene |
| title_full_unstemmed | Synthesis, structure, and optoelectronic properties of a new twistacene 1,2,3,4,6,13-hexaphenyl-7 : 8,11 : 12-bisbenzo-pentacene |
| title_short | Synthesis, structure, and optoelectronic properties of a new twistacene 1,2,3,4,6,13-hexaphenyl-7 : 8,11 : 12-bisbenzo-pentacene |
| title_sort | synthesis structure and optoelectronic properties of a new twistacene 1 2 3 4 6 13 hexaphenyl 7 8 11 12 bisbenzo pentacene |
| topic | DRNTU::Engineering::Materials |
| url | https://hdl.handle.net/10356/94262 http://hdl.handle.net/10220/8386 |
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