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Synfacts 2007(3): 0267-0267  
DOI: 10.1055/s-2007-968203
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart · New York

4,4′-Bis[(6,6′-diphenyl)-2,2-difluoro-1,3,2-dioxaborine] as an n-Type Organic Semiconductor

Contributor(s): Timothy M. Swager, Koushik Venkatesan
Y. Sun, D. Rohde, Y. Liu, L. Wan, Y. Wang, W. Wu, C. Di, G. Yu, D. Zhu*
Institute of Chemistry, Chinese Academy of Sciences, Beijing, P. R. of China
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Publication History

Publication Date:
20 February 2007 (online)

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Significance

The authors present air-stable ambipolar organic field-effect transistors (OFETs) using 4,4′-bis[(6,6′-diphenyl)-2,2-difluoro-1,3,2-di­oxaborine] (DOB) and copper phthalocyanine (CuPc) as n-type and p-type semiconductor material, respectively. DOB was obtained in 98% yield by reacting BF3×OEt2 with intermediate 1 in boiling acetic acid. The fabricated devices exhibit a field-effect mobility of 1 × 10-4 cm2V-1s-1, an on/off ratio of 104 and a threshold voltage of 8.6 V under ambient conditions.