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Published Papers
- Furan Fused V-Shaped Organic Semiconducting Materials with High Emission and High Mobility
K. Nakahara, C. Mitsui, T. Okamoto, M. Yamagishi, H. Matsui, T. Ueno, Y. Tanaka, M. Yano, T. Matsushita, J. Soeda, Y. Hirose, H. Sato, A. Yamano, and J. Takeya
Chem. Commun., accepted.
DOI: 10.1039/C3CC47577H
- Structural investigation of ionic liquid/rubrene single crystal interfaces by using frequency-modulation atomic force microscopy
Y. Yokota, H. Hara, T. Harada, A. Imanishi, T. Uemura, J. Takeya*, and K. Fukui*
Chem. Commun. 49, 10596 (2013).
DOI: 10.1039/C3CC45338C
- Dinaphtho[1,2‑b:2′,1’‑d]chalcogenophenes: Comprehensive Investigation of the Effect of the Chalcogen Atoms in the Phenacene-Type π‑Electronic Cores
C. Mitsui, T. Okamoto*, H. Matsui, M. Yamagishi, T. Matsushita, J. Soeda, K. Miwa, H. Sato, A. Yamano, T. Uemura, and J. Takeya*
Chem. Mater. 25, 3952−3956 (2013).
DOI: 10.1021/cm303376g
- V-Shaped Organic Semiconductors With Solution Processability, High Mobility, and High Thermal Durability
T. Okamoto*, C. Mitsui, M. Yamagishi, K. Nakahara, J. Soeda, Y. Hirose, K. Miwa, H. Sato, A. Yamano, T. Matsushita, T. Uemura, and J. Takeya*
Adv. Mater. 25, 6392–6397 (2013).
DOI: 10.1002/adma.201302086
- Flexible air-stable three-dimensional polymer field-effect transistors with high output current density
K. Nakayama, W. Ou-Yang*, M. Uno, I. Osaka, K. Takimiya, and J. Takeya*
Organic Electron. 14, 2908–2915 (2013)
DOI: 10.1016/j.orgel.2013.08.002
- Inch-size solution-processed single-crystalline films of high-mobility organic semiconductors
J. Soeda, T. Uemura, T. Okamoto*, C. Mitsui, M. Yamagishi, and J. Takeya*
Appl. Phys. Express 6, 076503 (2013)
DOI: 10.7567/APEX.6.076503
- Doping of Organic Semiconductors: Impact of Dopant Strength and Electronic Coupling
H. Méndez, G. Heimel*, A. Opitz, K. Sauer, P. Barkowski, M. Oehzelt, J. Soeda, T. Okamoto, J. Takeya, J. B. Arlin, J. Y. Balandier, Y. Geerts, N. Koch, and I. Salzmann*
Angew. Chem. 125, 1–6 (2013)
DOI: 10.1002/ange.201302396
- High-performance solution-processed organic transistors with electroless-plated electrodes
M. Ito, T. Uemura, J. Soeda, and J. Takeya*
Organic Electron. 14, 2144-2147 (2013)
DOI: 10.1016/j.orgel.2013.05.006
- Investigation of Hole Transporting Properties in Thin-Film and Single-Crystal Organic Field-Effect Transistor Based on Dinaphtho[2,1-b:1′,2′-d]thiophene
K. Nakahara, C. Mitsui, T. Okamoto*, M. Yamagishi, J. Soeda, K. Miwa, H. Sato, A. Yamano, T. Uemura, and J. Takeya*
Jpn. J. Appl. Phys. 52, 05DC10 (2013)
DOI: 10.7567/JJAP.52.05DC10
- Single-Crystal Field-Effect Transistors with a Furan-Containing Organic Semiconductor Having a Twisted π-Electronic System
K. Nakahara, C. Mitsui, T. Okamoto*, M. Yamagishi, K. Miwa, H. Sato, A. Yamano, T. Uemura, and J. Takeya*
Chem. Lett. 42, 654-656 (2013)
DOI: 10.1246/cl.130133
- Retrieval of electronic spectra of charge carriers in organic field-effect transistors from charge modulation reflectance spectra distorted by optical interference
K. Miyata, Y. Ishino, K. Watanabe, K. Miwa, T. Uemura, J. Takeya, and Y. Matsumoto*
Jpn. J. Appl. Phys. 52, 062401 (2013)
DOI: 10.7567/JJAP.52.062401
- High-speed organic single-crystal transistors gated with short-channel air gaps: Efficient hole and electron injection in organic semiconductor crystals
M. Uno*, T. Uemura, Y. Kanaoka, Z. Chen, A. Facchetti, and J. Takeya
Organic Electron. 14, 1656–1662 (2013)
DOI: 10.1016/j.orgel.2013.03.009
- Charge modulation infrared spectroscopy of rubrene single-crystal field-effect transistors
R. Uchida, H. Yada, M. Makino, Y. Matsui, K. Miwa, T. Uemura, J. Takeya, and H. Okamoto*
Appl. Phys. Lett. 102, 093301 (2013)
DOI: 10.1063/1.4794055
- Anomalous pressure effect in heteroacene organic field-effect transistors
K. Sakai*, Y. Okada, S. Kitaoka, J. Tsurumi, Y. Ohishi, A. Fujiwara, K. Takimiya, and J. Takeya*
Phys. Rev. Lett. 110, 096603 (2013)
DOI: 10.1103/PhysRevLett.110.096603
- Two-dimensional crystal growth of thermally converted organic semiconductors at the surface of ionic liquid and high-mobility organic field-effect transistors
J. Soeda, T. Okamoto*, A. Hamaguchi, Y. Ikeda, H. Sato, A. Yamano, and J. Takeya*
Organic Electron. 14, 1211–1217 (2013)
DOI: 10.1016/j.orgel.2013.01.004
- Benzopyrazine-fused tetracene derivatives: Thin-film formation at the crystalline mesophase for solution-processed hole transporting devices
S. Kojima, T. Okamoto*, K. Miwa, H. Sato, J. Takeya*, and Y. Matsuo*
Organic Electron. 14, 437–444 (2013)
DOI: 10.1016/j.orgel.2012.10.029
International Conference
Invited
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- V-shaped organic semiconductors having solution-processed high mobility and high thermal durability
T. Okamoto, C. Mitsui, M. Yamagishi, J. Soeda, Y. Hirose, T. Matsushita, H. Sato, A. Yamano, T. Uemura, and J. Takeya
2013 Optics+Photonics (SPIE)
San Diego Convention Center, San Diego, California, USA, Aug. 25-29, 2013
- V-Shaped High-Performance Organic Semiconductors
T. Okamoto, C. Mitsui, M. Yamagishi,T. Matsushita, J. Soeda, Y. Hirose, K. Nakahara, H. Sato, A. Yamano, T. Uemura, and J. Takeya
15th Asian Chemical Congress (15acc)
Resorts World Sentosa, Singapore, Aug. 19-23, 2013
- High-speed and high-power three-dimensional organic field-effect transistors
M. Uno, B. S. Cha, K. Nakayama, K. Takimiya, and J. Takeya
ISCS2013
Kobe Convention Center, Kobe, Japan, May 19-23, 2013
- Materials and devices of high-end organic transistors
J. Takeya
The 9th International Thin-Film Transistor Conference
The University of Tokyo, Mar. 2, 2013
- Intermolecular electronic coherence in organic single-crystal transistors and high-speed organic electronics
J. Takeya
German-Japanese International Workshop
Magnus-Haus Berlin, Germany, Jan. 10, 2013
Oral
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- Novel Solution Process for Inch-Sized Single-Crystalline Organic Semiconductors and Application for Arrayed TFTs
J. Soeda, T. Uemura, T. Okamoto, C. Mitsui, H. Matsui and J. Takeya
2013 International Conference on Solid State Devices and Materials
Hilton Fukuoka Sea Hawk, Fukuoka, Japan, Sept. 24-27, 2013
- Carrier Localization in Organic Transistors with Polymer Gate Insulators
H. Matsui, A. S. Mishchenko, and T. Hasegawa
2013 International Conference on Solid State Devices and Materials
Hilton Fukuoka Sea Hawk, Fukuoka, Japan, Sept. 24-27, 2013
- A Solution Process of Inch-size Organic Single-Crystalline Thin Films for High-Mobility Transistor Arrays
J. Soeda, T. Uemura, T. Okamoto, C. Mitsui, H. Matsui and J. Takeya
2013 JSPS-MRS Joint Symposia
Doshisha University, Kyoto, Japan, Sept. 16-20, 2013
- Potential Fluctuation at Organic Semiconductor/Polymer Insulator Interfaces
H. Matsui, A. S. Mishchenko, and T. Hasegawa
2013 JSAP-MRS Joint Symposia
Doshisha University, Kyoto, Japan, Sept. 16-20, 2013
- High-speed, low-voltage organic single-crystal transistors gated with ionic liquid
M. Uno, B.S. Cha, K. Miwa, T. Uemura, A. Facchetti, and J. Takeya
2013 MRS Spring meeting
Moscone West Convention Center, San Francisco, California, USA, Apr. 4, 2013
Poster
- Heteroacene-based organic single crystal transistors under high pressure
K. Sakai, Y. Okada, S. Kitaoka, J. Tsurumi, Y. Ohishi, A. Fujiwara, H. Sato, A. Yamano, M. Yamagishi, C. Mitsui, T. Okamoto, K. Takimiya and J. Takeya
2013 International Conference on Solid State Devices and Materials
Hilton Fukuoka Sea Hawk, Fukuoka, Japan, Sept. 24-27, 2013
- Alkylated Furan Fused V-Shaped Organic Semiconductors with High Charge Carrier Mobility
K. Nakahara, T. Okamoto, C. Mitsui, M. Yamagishi, T. Ueno, Y. Tanaka, M. Yano, J. Soeda, Y. Hirose, H. Sato, A. Yamano, T. Uemura, and J. Takeya
15th Asian Chemical Congress
Resorts World Sentosa, Singapore, Aug. 19-23, 2013
- Chalcogen bridged W-shaped molecules as a new class of organic semiconductors
C. Mitsui, T. Okamoto, M. Yamagishi, T. Matsushita, J. Soeda, K. Miwa, H. Sato, A. Yamano, T. Uemura, and J. Takeya
15th International Symposium on Novel Aromatic Compounds (ISNA-15)
Howard Civil Service International House, Taipei, Taiwan, Jul. 28–Aug. 2, 2013
- V-Shaped Organic Semiconductors: Stabilized Crystal Phases and High-Mobility Solution-Processable Transistors
T. Okamoto, C. Mitsui, M. Yamagishi,K. Nakahara, J. Soeda, H. Sato, A. Yamano, T. Matsushita, T. Uemura, and J. Takeya
15th International Symposium on Novel Aromatic Compounds (ISNA-15)
Howard Civil Service International House, Taipei, Taiwan, Jul. 28–Aug. 2, 2013