期刊
JOURNAL OF MOLECULAR STRUCTURE
卷 1093, 期 -, 页码 144-149出版社
ELSEVIER
DOI: 10.1016/j.molstruc.2015.03.057
关键词
Azapyrenoacene; Quinoxalinophenanthrophenazine; Organic thin-film transistors; Field-effect mobility; Electronic coupling
资金
- Lebanese National Council for Scientific Research (CNRS)
- Petroleum Research Fund (PRF) of the American Chemical Society [47343-B10]
- Royal Society of Chemistry
- U.S. Department of Energy, Office of Basic Energy Sciences [DE-AC02-05CH11231]
- Interuniversity Attraction Pole Programs of the Belgian Federal Science Policy Office [PAI 7/05]
- Belgian National Fund for Scientific Research (FNRS)
- Arab Fund Fellowship Program
Two p-type semiconducting azapyrenoacene materials, quinoxalino[2',3':9,10]phenanthro[4,5-abc]phenazine (TQPP) and 6,7,15,16-tetramethylquinoxalino[2',3':9,10]phenanthro[4,5-abc]phenazine (TQPP-[CH3](4)), were characterized and were found to display high thermal stability and planar molecular geometry as revealed by single-crystal X-ray analysis. In bottom-gate p-channel organic thin-film transistors, field-effect mobilities of 2.5 x 10(-3) cm(2)/V s and 7.5 x 10(-3) cm(2)/V s were measured in ambient air for TQPP and TQPP-[CH3](4), respectively. Computational results of reorganization energies and electronic couplings indicate larger inter and intra-columnar couplings for TQPP-[CH3](4) in comparison to TQPP and predict the suitability of both semiconductors for hole as well as electron transporters. (C) 2015 Elsevier B.V. All rights reserved.
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