Syntheses et proprietes de nouveaux derives du tetrathiofulvalene.

Mas, André; Fabre, J.M.; Torreilles, E.; Giral, L.; Brun, G.

doi:10.1016/s0040-4039(01)83825-9

Cited by 32 publications

(7 citation statements)

References 11 publications

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“…TM-TTF and BEDT-TTF were synthesized as described in Refs. [92] and [93], respectively. 4T and PTTP were synthesized according to the procedures described in Refs.…”

Section: Methodsmentioning

confidence: 99%

Spectroscopic Assessment of Charge‐Carrier Mobility in Crystalline Organic Semiconductors

Kharlanov

Maslennikov

Feldman

et al. 2021

Adv Elect Materials

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ones; only a few OSs show reproducible mobilities exceeding that for amorphous silicon (μ ≈ 1 cm 2 V −1 s −1 ), a workhorse of modern thin-film electronics. [1,2] Moreover, reliable mobility measurements in OSs are difficult and time-consuming. For example, the commonly used measurement method with the use of organic field-effect transistors (OFETs) is complicated by many factors, such as the contacts, the architecture, the dielectric, etc., which results in various artifacts and pitfalls. [3] Therefore, focused search for high-mobility OS materials among a huge number of candidates needs an effective approach to charge-carrier mobility estimation prior to its measurements in devices. Importantly, in the context of such a search, one does not necessarily have to predict a value of μ closely enough to the experimental mobility to be further measured: a mobility estimation characterized with a good correlation with experimental μ values for quite a lot of (but not all) OSs also provides a way toward efficient screening of high-mobility OS materials.Two types of OSs show high charge-carrier mobilities: smallmolecule organic crystals (crystalline OSs) and polymers. In what follows, we will focus on crystalline OSs, whose crystal structures resolved from X-ray diffraction data are needed for Further progress in organic electronics demands new highly efficient organic semiconductor (OS) materials. So far, however, band-like charge transport with high mobilities has been reliably demonstrated only in a few OSs, and development of efficient methods for search of high-mobility materials among a plethora of OSs remains extremely important. In the present work, a spectroscopic method is presented for screening of crystalline OSs with efficient charge transport, to be used prior to time-consuming device measurements. Specifically, the work focuses on a physical rationale and an experimental benchmark of a correlation between the intensities of the low-frequency Raman spectrum and the strength of dynamic disorder limiting the charge-carrier mobility in a material. As a result, two physicsinspired spectroscopic descriptors for charge-carrier mobility estimation are suggested, both of which clearly correlate with device mobilities reported for various crystalline OSs. It is anticipated that the spectroscopic method based on these descriptors can serve as a powerful search tool for revealing new high-mobility OS materials.

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“…TM-TTF and BEDT-TTF were synthesized as described in Refs. [92] and [93], respectively. 4T and PTTP were synthesized according to the procedures described in Refs.…”

Section: Methodsmentioning

confidence: 99%

Spectroscopic Assessment of Charge‐Carrier Mobility in Crystalline Organic Semiconductors

Kharlanov

Maslennikov

Feldman

et al. 2021

Adv Elect Materials

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“…sulfuric acid or 70% perchloric acid to yield the 1,3-dithiolylium salts 160, which upon treatment with H 2 S afford the 1,3-dithiole-2-thiones 161 (Scheme 11.42) [147].…”

Section: Theoretical Methodsmentioning

confidence: 99%

Five‐Membered Heterocycles with Two Heteroatoms: O and S Derivatives

Wilkins¹

2011

Modern Heterocyclic Chemistry

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“…Single-crystal samples of TMTTF molecules with 13 C at double-bonded carbons (see Fig. 1) were prepared for NMR measurements using a standard electrocrystallization method [12,27,[47][48][49]. A hybrid NiCrAl-BeCu clamp-type pressure cell was used to apply pressure.…”

Section: Methodsmentioning

confidence: 99%

13C NMR study of the magnetic properties of the quasi-one-dimensional conductor, (TMTTF)2SbF6

Iwase,

Sugiura,

Furukawa

et al. 2011

Preprint

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Magnetic properties in the quasi-one-dimensional organic salt (TMTTF)2SbF6 are investigated by 13 C NMR under pressures. Antiferromagnetic phase transition at ambient pressure (AFI) is confirmed. Charge-ordering is suppressed by pressure and is not observed under 8 kbar. For 5 < P < 20 kbar, a sharp spectrum and the rapid decrease of the spin-lattice relaxation rate 1/T1 were observed below about 4 K, attributed to a spin-gap transition. Above 20 kbar, extremely broadened spectrum and critical increase of 1/T1 were observed. This indicates that the system enters into another antiferromagnetic phase (AFII) under pressure. The slope of the antiferromagnetic phase transition temperature TAFII, dTAFII/dP , is positive, while TAFI decreases with pressure. The magnetic moment is weakly incommensurate with the lattice at 30 kbar.

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Syntheses et proprietes de nouveaux derives du tetrathiofulvalene.

Cited by 32 publications

References 11 publications

Spectroscopic Assessment of Charge‐Carrier Mobility in Crystalline Organic Semiconductors

Spectroscopic Assessment of Charge‐Carrier Mobility in Crystalline Organic Semiconductors

Five‐Membered Heterocycles with Two Heteroatoms: O and S Derivatives

13C NMR study of the magnetic properties of the quasi-one-dimensional conductor, (TMTTF)2SbF6

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