Synthesis and characterization of 1,3,2-diazaboroine derivatives for organic thin-film transistor applications |
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Authors: | Yinxiang Lu Altan Bolag Jun-ichi Nishida Yoshiro Yamashita |
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Affiliation: | 1. Department of Electronic Chemistry, Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology, Nagatsuta, Midori-ku, Yokohama 226-8502, Japan;2. Department of Materials Science, Fudan University, Shanghai 200433, China |
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Abstract: | 2,2′-(1,4-Phenylene)bis(2,3-dihydro-1H-naphtho1,8-de]-1,3,2-diazaboroine) PND] and 2,2′-(4,4′-biphenylene)bis(2,3-dihydro-1H-naphtho1,8-de]-1,3,2-diazaboroine) BND] were synthesized and characterized by using differential scanning calorimetry (DSC) measurements, single crystal X-ray structure analysis, UV–vis absorption and electrochemical measurements, thin-film X-ray diffraction (XRD) and AFM studies. Organic field-effect transistors (OFETs) were fabricated by vacuum deposition with a bottom contact geometry using Au electrodes. Annealing treatment optimizes the organic active layer and increases the charge carrier mobility. Field-effect mobilities of 7.2 × 10?3 for PND and 4.1 × 10?4 cm2 V?1 s?1 for BND were found. |
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