Journal ArticleDOI
Tetrakis(methyltelluro)tetrathiafulvalene (TTeC1TTF), a high-mobility organic semiconductor
H. Inokuchi,K.-I. Imaeda,T. Enoki,Takehiko Mori,Yusei Maruyama,G. Saito,N. Okada,Hideki Yamochi,Kazuhiko Seki,Yoshiki Higuchi,N. Yasuoka +10 more
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TLDR
In this paper, the tetrakis(alkylthio)tetrathiaful-valenes, a class of highly conductive single-component organic semiconductors, have been found.Abstract:
We have found a class of highly conductive single-component organic semiconductors; the tetrakis(alkylthio)tetrathiaful-valenes, and have given these systems the descriptive title of 'molecular fastener'1,2. In a programme to synthesize single-component molecular assemblies with high conductivity, we then discovered a new organic semiconductor, tetrakis(alkyltel-luro)tetrathiafulvalene, of electrical resistivity 8.1 x 104 Ωcm, having high charge mobility, 20–30 cm2 V–1 s–1. We explain this unusually low resistivity in terms of molecular packing and stacking manner within the crystal. The central skeleton of this compound, tetratelluro-tetrathiafulvalene moiety (C6Te4S4), is almost planar and is regularly stacked in the form of column. Along the stacking axis, tellurium atoms in neighbouring columns come close each other and form zigzag chains. The distance between those two Te atoms is 3.644(2) A, which is significantly shorter than van der Waals distance (4.12 A). It is expected that zigzag chalcogen chains formed from quasi-covalent bonds.read more
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Journal ArticleDOI
Molecular Ordering of High‐Performance Soluble Molecular Semiconductors and Re‐evaluation of Their Field‐Effect Transistor Characteristics
Journal ArticleDOI
Development of Conductive Organic Molecular Assemblies: Organic Metals, Superconductors, and Exotic Functional Materials
Gunzi Saito,Yukihiro Yoshida +1 more
TL;DR: In this paper, the development of conductive organic molecular assemblies including organic metals, superconductors, single component conductors, conductive films, and conductive liquids was introduced.
Journal ArticleDOI
Alkylated dinaphtho[2,3-b:2′,3′-f]thieno[3,2-b]thiophenes (Cn-DNTTs): Organic semiconductors for high-performance thin-film transistors
Myeong Jin Kang,Iori Doi,Hiroki Mori,Eigo Miyazaki,Kazuo Takimiya,Masaaki Ikeda,Hirokazu Kuwabara +6 more
TL;DR: Among the many semiconducting materials evaluated in the TFT confi guration, pentacene is the best as it shows the highest fi eld-effect mobility ( > 3.0 cm 2 V − 1 s − 1 ).
Journal ArticleDOI
High mobility of dithiophene-tetrathiafulvalene single-crystal organic field effect transistors.
TL;DR: Single-crystal field effect transistors of the organic semiconductor dithiophene-tetrathiafulvalene (DT-TTF) were prepared by drop casting and the highest hole mobility observed was 1.4 cm2/Vs, which is the highest reported for an Organic semiconductor not based on pentacene.
References
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Journal ArticleDOI
Electrical Conductivity of the Perylene–Bromine Complex
TL;DR: In this article, it was shown that polycyclic aromatic compounds and halogens have fairly good electrical conductivity (∼ 1−10−3 ohm−1 cm.−1).
Journal ArticleDOI
Phthalocyanines as Semiconductors
TL;DR: The electrical conductivity of two phthalocyanines, a group of conjugated structures closely related to the biologically important porphyrins, is examined to obtain a system suitable for quantitative investigation.
Journal ArticleDOI
On the Electrical Conductivity of Violanthrone, Iso‐Violanthrone, and Pyranthrone
Hideo Akamatu,Hiroo Inokuchi +1 more
TL;DR: In this paper, the electrical resistivity of violanthrone, iso-violanthrone and pyranthrone was measured and a linear relationship was observed between the logarithm of the resistivity and the reciprocal of the temperature.
Journal ArticleDOI
A Novel Type of Organic Semiconductors. Molecular Fastener
Hiroo Inokuchi,Gunzi Saito,Peiji Wu,Kazuhiko Seki,Tong Bor Tang,Takehiko Mori,Kenichi Imaeda,Toshiaki Enoki,Yoshiki Higuchi,Koji Inaka,Noritake Yasuoka +10 more
TL;DR: In this article, the electrical conductivity of alkylthio-substituted tetrathiafulvalene (TTCn-TTF) single crystal has been measured in a vacuum of 10−4 Pa with the two probe method.
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