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Synthesis, Characterization of 9,9'-Bianthracene and Fabrication of 9,9'-Bianthracene Field-Effect Transistors |
| LI Jian-Feng1,2, CHANG Wen-Li2, TAO Chun-Lan1, OU Gu-Ping1, ZHANG Fu-Jia1 |
| 1Department of Physics, Lanzhou University, Lanzhou 7300002School of Mathematics, Physics and Software Engineering, Lanzhou Jiaotong University, Lanzhou 730070 |
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| Cite this article: |
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LI Jian-Feng, CHANG Wen-Li, TAO Chun-Lan et al 2008 Chin. Phys. Lett. 25 4476-4479 |
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Abstract We synthesize and purify 9,9'-bianthracene with the purity up to 96.4 %. The electronic and crystallographic structures of 9,9'-bianthracene are studied. The results of a joint experimental investigation based on a combination of x-ray diffraction (XRD) spectra, hydrogen nuclear magnetic (HNMR) spectra, infrared absorption (FT-IR) spectra, and mass spectra (MS) of 9,9'-bianthracene are obtained. The uniform compact film is observed by an atomic-force microscope (AFM). Organic field effect transistors (OFETs) with an active layer based on the synthesized 9,9'-bianthracene are fabricated for the first time. Its field-effect mobility is as large as 0.067cm2/(V・s) and the on/off ratio is above 5×104. The result demonstrates that the oligomerization of a small semiconductor molecule is an effective method to develop high-mobility organic semiconductors.
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| Keywords:
85.30.Tv
81.20.Ka
72.80.Le
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Received: 04 June 2008
Published: 27 November 2008
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| PACS: |
85.30.Tv
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(Field effect devices)
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81.20.Ka
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(Chemical synthesis; combustion synthesis)
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72.80.Le
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(Polymers; organic compounds (including organic semiconductors))
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