start-ver=1.4
cd-journal=joma
no-vol=10
cd-vols=
no-issue=52
article-no=
start-page=31547
end-page=31552
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2020
dt-pub=20200826
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Facile synthesis of picenes incorporating imide moieties at both edges of the molecule and their application to n-channel field-effect transistors
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Picene derivatives incorporating imide moieties along the long-axis direction of the picene core (Cn-PicDIs) were conveniently synthesized through a four-step synthesis. Photochemical cyclization of dinaphthylethenes was used as the key step for constructing the picene skeleton. Field-effect transistor (FET) devices of Cn-PicDIs were fabricated by using ZrO2 as a gate substrate and their FET characteristics were investigated. The FET devices showed normally-off n-channel operation; the averaged electron mobility (μ) was evaluated to be 2(1) × 10−4, 1.0(6) × 10−1 and 1.4(3) × 10−2 cm2 V−1 s−1 for C4-PicDI, C8-PicDI and C12-PicDI, respectively. The maximum μ value as high as 2.0 × 10−1 cm2 V−1 s−1 was observed for C8-PicDI. The electronic spectra of Cn-PicDIs in solution showed the same profiles irrespective of the alkyl chain lengths. In contrast, in thin films, the UV absorption and photoelectron yield spectroscopy (PYS) indicated that the lowest unoccupied molecular orbital (LUMO) level of Cn-PicDIs gradually lowered upon the elongation of the alkyl chains, suggesting that the alkyl chains modify intermolecular interactions between the Cn-PicDI molecules in thin films. The present results provide a new strategy for constructing a high performance n-channel organic semiconductor material by utilizing the electronic features of phenacenes.
en-copyright=
kn-copyright=

en-aut-name=GuoYuxin
en-aut-sei=Guo
en-aut-mei=Yuxin
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=YoshiokaKaito
en-aut-sei=Yoshioka
en-aut-mei=Kaito
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=HamaoShino
en-aut-sei=Hamao
en-aut-mei=Shino
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=KubozonoYoshihiro
en-aut-sei=Kubozono
en-aut-mei=Yoshihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=TaniFumito
en-aut-sei=Tani
en-aut-mei=Fumito
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=GotoKenta
en-aut-sei=Goto
en-aut-mei=Kenta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

en-aut-name=OkamotoHideki
en-aut-sei=Okamoto
en-aut-mei=Hideki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=

affil-num=1
en-affil=Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=2
en-affil=Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=3
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=

affil-num=4
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=

affil-num=5
en-affil=Institute for Materials Chemistry and Engineering, Kyushu University
kn-affil=

affil-num=6
en-affil=Institute for Materials Chemistry and Engineering, Kyushu University
kn-affil=

affil-num=7
en-affil=Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=8
cd-vols=
no-issue=22
article-no=
start-page=7422
end-page=7435
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2020
dt-pub=20200418
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Synthesis of [7]phenacene incorporating tetradecyl chains in the axis positions and its application in field-effect transistors
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Field-effect transistors (FETs) were fabricated using a new type of phenacene molecule, 3,12-ditetradecyl[7]phenacene ((C14H29)2-[7]phenacene), and solid gate dielectrics or an electric double layer (EDL) capacitor with an ionic liquid (1-butyl-3-methylimidazolium hexafluorophosphate (bmim[PF6])). The new molecule, (C14H29)2-[7]phenacene, was efficiently synthesized via the Mallory photoreaction. Its crystal structure and electronic properties were determined, using X-ray diffraction, scanning tunneling microscopy/spectroscopy (STM and STS), absorption spectroscopy, and photoelectron yield spectroscopy, which showed a monoclinic crystal lattice (space group P21 (no. 4)) and an energy gap of ∼3.0 eV. The STM image clearly showed the molecular structure of (C14H29)2-[7]phenacene, as well as the closed molecular stacking, indicative of a strong fastener effect between alkyl chains. The X-ray diffraction pattern of thin films of (C14H29)2-[7]phenacene formed on a SiO2/Si substrate suggested that the molecule stood on the surface with an inclined angle of 30° with respect to the normal axis of the surface. The FET properties were recorded in two-terminal measurement mode, showing p-channel normally-off characteristics. The averaged values of field-effect mobility, μ, were 1.6(3) cm2 V−1 s−1 for a (C14H29)2-[7]phenacene thin-film FET with a SiO2 gate dielectric and 6(4) × 10−1 cm2 V−1 s−1 for a (C14H29)2-[7]phenacene thin-film EDL FET with bmim[PF6]. Thus, higher FET performance was obtained with an FET using a thin film of (C14H29)2-[7]phenacene compared to parent [7]phenacene. This study could pioneer an avenue for the realization of high-performance FETs through the addition of alkyl chains to phenacene molecules.
en-copyright=
kn-copyright=

en-aut-name=OkamotoHideki
en-aut-sei=Okamoto
en-aut-mei=Hideki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=HamaoShino
en-aut-sei=Hamao
en-aut-mei=Shino
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=KozasaKeiko
en-aut-sei=Kozasa
en-aut-mei=Keiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=WangYanan
en-aut-sei=Wang
en-aut-mei=Yanan
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=KubozonoYoshihiro
en-aut-sei=Kubozono
en-aut-mei=Yoshihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=PanYong-He
en-aut-sei=Pan
en-aut-mei=Yong-He
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

en-aut-name=YenYu-Hsiang
en-aut-sei=Yen
en-aut-mei=Yu-Hsiang
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=

en-aut-name=HoffmannGermar
en-aut-sei=Hoffmann
en-aut-mei=Germar
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=

en-aut-name=TaniFumito
en-aut-sei=Tani
en-aut-mei=Fumito
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=

en-aut-name=GotoKenta
en-aut-sei=Goto
en-aut-mei=Kenta
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=

affil-num=1
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=2
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=

affil-num=3
en-affil=Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=4
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=

affil-num=5
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=

affil-num=6
en-affil=Department of Physics & Center for Quantum Technology, National Tsing Hua University
kn-affil=

affil-num=7
en-affil=Department of Physics & Center for Quantum Technology, National Tsing Hua University
kn-affil=

affil-num=8
en-affil=Department of Physics & Center for Quantum Technology, National Tsing Hua University
kn-affil=

affil-num=9
en-affil=Institute for Materials Chemistry and Engineering, Kyushu University
kn-affil=

affil-num=10
en-affil=Institute for Materials Chemistry and Engineering, Kyushu University
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=9
cd-vols=
no-issue=
article-no=
start-page=4009
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2019
dt-pub=201938
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Synthesis of the extended phenacene molecules, [10]phenacene and [11]phenacene, and their performance in a field-effect transistor 
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract= The [10]phenacene and [11]phenacene molecules have been synthesized using a simple repetition of Wittig reactions followed by photocyclization. Sufficient amounts of [10]phenacene and [11]phenacene were obtained, and thin-film FETs using these molecules have been fabricated with SiO2 and ionic liquid gate dielectrics. These FETs operated in p-channel. The averaged measurements of field-effect mobility, <μ>, were 3.1(7) × 10-2 and 1.11(4) × 10-1 cm2 V-1 s-1, respectively, for [10]phenacene and [11]phenacene thin-film FETs with SiO2 gate dielectrics. Furthermore, [10]phenacene and [11]phenacene thin-film electric-double-layer (EDL) FETs with ionic liquid showed low-voltage p-channel FET properties, with <μ> values of 3(1) and 1(1) cm2 V-1 s-1, respectively. This study also discusses the future utility of the extremely extended π-network molecules [10]phenacene and [11]phenacene as the active layer of FET devices, based on the experimental results obtained.
en-copyright=
kn-copyright=

en-aut-name=OkamotoHideki
en-aut-sei=Okamoto
en-aut-mei=Hideki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=HamaoShino
en-aut-sei=Hamao
en-aut-mei=Shino
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=EguchiRitsuko
en-aut-sei=Eguchi
en-aut-mei=Ritsuko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=GotoHidenori
en-aut-sei=Goto
en-aut-mei=Hidenori
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=TakabayashiYasuhiro
en-aut-sei=Takabayashi
en-aut-mei=Yasuhiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

en-aut-name=YenPaul Yu-Hsiang
en-aut-sei=Yen
en-aut-mei=Paul Yu-Hsiang
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=6
ORCID=

en-aut-name=LiangLuo Uei
en-aut-sei=Liang
en-aut-mei=Luo Uei
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=7
ORCID=

en-aut-name=ChouChia-Wei
en-aut-sei=Chou
en-aut-mei=Chia-Wei
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=8
ORCID=

en-aut-name=HoffmannGermar
en-aut-sei=Hoffmann
en-aut-mei=Germar
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=9
ORCID=

en-aut-name=GohdaShin
en-aut-sei=Gohda
en-aut-mei=Shin
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=10
ORCID=

en-aut-name=SuginoHisako
en-aut-sei=Sugino
en-aut-mei=Hisako
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=11
ORCID=

en-aut-name=LiaosYen-Fa
en-aut-sei=Liaos
en-aut-mei=Yen-Fa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=12
ORCID=

en-aut-name=IshiiHirofumi
en-aut-sei=Ishii
en-aut-mei=Hirofumi
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=13
ORCID=

en-aut-name=KubozonoYoshihiro
en-aut-sei=Kubozono
en-aut-mei=Yoshihiro
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=14
ORCID=

affil-num=1
en-affil= Department of Chemistry, Okayama University
kn-affil=

affil-num=2
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=

affil-num=3
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=

affil-num=4
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=

affil-num=5
en-affil= Department of Chemistry, Okayama University
kn-affil=

affil-num=6
en-affil=Department of Physics, National Tsing Hua University
kn-affil=

affil-num=7
en-affil=Department of Physics, National Tsing Hua University
kn-affil=

affil-num=8
en-affil=Department of Physics, National Tsing Hua University
kn-affil=

affil-num=9
en-affil=Department of Physics, National Tsing Hua University
kn-affil=

affil-num=10
en-affil=NARD Co Ltd
kn-affil=

affil-num=11
en-affil=NARD Co Ltd
kn-affil=

affil-num=12
en-affil=National Synchrotron Radiation Center
kn-affil=

affil-num=13
en-affil=National Synchrotron Radiation Center
kn-affil=

affil-num=14
en-affil=Research Institute for Interdisciplinary Science, Okayama University
kn-affil=
END

start-ver=1.4
cd-journal=joma
no-vol=60
cd-vols=
no-issue=43
article-no=
start-page=151189
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2019
dt-pub=20190920
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Fluorescence properties of amido-substituted 2,3-naphthalimides: Excited-state intramolecular proton transfer (ESIPT) fluorescence and responses to Ca2+ ions
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract= 2,3-Naphthalimide derivatives incorporating trifluoroacetamido (3a) and methansulfonamido (3b) functionalities at the 1-position were prepared and their intramolecular excited state proton transfer (ESIPT) fluorescence and responses to metal ions were investigated. Compound 3a displayed normal fluorescence in the amide form in toluene and MeCN and no response to metal cations in the corresponding amidate ion form. In contrast, compound 3b gave off dual emission assignable to normal and ESIPT fluorescence. Additionally, the amidate form of compound 3b displayed off-on fluorescence response to Ca2+.
en-copyright=
kn-copyright=

en-aut-name=WangLei
en-aut-sei=Wang
en-aut-mei=Lei
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

en-aut-name=FujiiMayu
en-aut-sei=Fujii
en-aut-mei=Mayu
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=2
ORCID=

en-aut-name=NambaMisa
en-aut-sei=Namba
en-aut-mei=Misa
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=3
ORCID=

en-aut-name=YamajiMinoru
en-aut-sei=Yamaji
en-aut-mei=Minoru
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=4
ORCID=

en-aut-name=OkamotoHideki
en-aut-sei=Okamoto
en-aut-mei=Hideki
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=5
ORCID=

affil-num=1
en-affil=Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=2
en-affil=Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=3
en-affil=Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
kn-affil=

affil-num=4
en-affil=Division of Molecular Science, Graduate School of Science and Engineering, Gunma University
kn-affil=

affil-num=5
en-affil=Division of Earth, Life, and Molecular Sciences, Graduate School of Natural Science and Technology, Okayama University
kn-affil=
en-keyword=Fluorescence
kn-keyword=Fluorescence
en-keyword=ESIPT
kn-keyword=ESIPT
en-keyword=Naphthalimide
kn-keyword=Naphthalimide
en-keyword=Ca2+ probe
kn-keyword=Ca2+ probe
END

start-ver=1.4
cd-journal=joma
no-vol=
cd-vols=
no-issue=
article-no=
start-page=
end-page=
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=1995
dt-pub=19950930
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=ベンゼン-アレーンバイプレンマーの合成及び化学的挙動の研究
kn-title=Studies on Synthesis and Chemistry of Benzene-Arene Biplanemers
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=
en-copyright=
kn-copyright=

en-aut-name=
en-aut-sei=
en-aut-mei=
kn-aut-name=岡本秀毅
kn-aut-sei=岡本
kn-aut-mei=秀毅
aut-affil-num=1
ORCID=

affil-num=1
en-affil=
kn-affil=岡山大学
END