A5057673683- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Organic and Molecular Conductors Research
- Thin-Film Transistor Technologies
- Magnetism in coordination complexes
- Crystallography and molecular interactions
- Perovskite Materials and Applications
- Advanced Sensor and Energy Harvesting Materials
- Semiconductor materials and devices
- Molecular Junctions and Nanostructures
- Analytical Chemistry and Sensors
- Organic Light-Emitting Diodes Research
- Advanced Memory and Neural Computing
- Solid-state spectroscopy and crystallography
- Luminescence and Fluorescent Materials
- Nanowire Synthesis and Applications
- Caveolin-1 and cellular processes
- Metal-Organic Frameworks: Synthesis and Applications
- ZnO doping and properties
- Synthesis and Properties of Aromatic Compounds
- Electron Spin Resonance Studies
- Electronic and Structural Properties of Oxides
- Cardiac Fibrosis and Remodeling
The University of Tokyo
2017-2024
Tokyo Institute of Technology
2023-2024
Tohoku University
2012-2023
Innovation Research Center
2020-2023
Material (Belgium)
2020-2023
Osaka University
2012-2022
Kashiwa Municipal Hospital
2020-2021
Frontier Science Foundation
2021
Mie Chukyo University
2021
Sendai University
2015-2019
A state-of-the-art organic semiconductor that has high effective electron mobility and outstanding robustness was developed.
ConspectusOrganic semiconductors (OSCs) have attracted much attention because of their potential applications for flexible and printed electronic devices thus been extensively investigated in a variety research fields, such as organic chemistry, solid-state physics, device physics engineering. Organic thin-film transistors (OTFTs), class OSC-based devices, expected to be an alternative silicon-based metal oxide semiconductor field-effect (MOSFETs), which is the indispensable element most...
Polymorphism in formate-based dense metal-organic frameworks with the general formula ABX3 is predicted by quantum chemical calculations and confirmed experimentally. In particular [NH3NH2]Zn(HCOO)3 crystallizes two different polymorphs, a perovskite-like framework chiral structure hexagonal channels. A detailed thermodynamic analysis reveals that both structures are very close free energy entropy driven effects responsible for stabilizing channel structure.
Abstract Building on significant developments in materials science and printing technologies, organic semiconductors (OSCs) promise an ideal platform for the production of printed electronic circuits. However, whether their unique solution-processing capability can facilitate reliable mass manufacture integrated circuits with reasonable areal coverage, to what extent solution-processed devices would allow substantial reductions manufacturing costs, remain controversial. In present study, we...
Abstract To achieve semiconducting materials with high electron mobility in organic field‐effect transistors (OFETs), low‐lying energy levels (the highest occupied molecular orbital (HOMO) and the lowest unoccupied (LUMO)) favorable packing ordering are two crucial factors. Here, it is reported that incorporation of pyridine selenophene into backbone a diketopyrrolopyrrole (DPP)‐based copolymer produces high‐electron‐mobility semiconductor, PDPPy‐Se. Compared analogous polymers based on...
Activation of cardiac STAT3 by IL-6 cytokine family contributes to cardioprotection. Previously, we demonstrated that IL-11, an family, has the therapeutic potential prevent adverse remodeling after myocardial infarction; however, it remains be elucidated whether IL-11 exhibits postconditioning effects. To address possibility treatment improves clinical outcome recanalization therapy against acute infarction, examined its effects on ischemia/reperfusion (I/R) injury. C57BL/6 mice were...
Dense formate frameworks with a perovskite-like architecture exhibit multiferroic behavior and tunable mechanical properties. In such materials, interactions between the protonated amine metal–formate cavity have large impact on We use complementary single-crystal X-ray diffraction 1H solid state nuclear magnetic resonance spectroscopy to investigate amine–cavity in [NH3NH2]Zn(HCOO)3. The results suggest that these can be described as salt bridges similar those proteins artificially...
A novel route of molecular doping in organic semiconductors is demonstrated to achieve high carrier concentration.
The hole-carrier transport of organic semiconductors is widely known to occur via intermolecular orbital overlaps the highest occupied molecular orbitals (HOMO), though effect other on charge rarely investigated. In this work, we first demonstrate evidence a mixed-orbital concept in high-performance N-shaped decyl-dinaphtho[2,3-d:2′,3′-d′]benzo[1,2-b:4,5-b′]dithiophene (C10–DNBDT–NW), where electronic couplings second HOMO (SHOMO) and third (THOMO) also contribute transport. We then present...
Immobility is a common cause of muscle atrophy, but the underlying mechanisms have remained unclear. Here we show that limb immobilization in mice elicits inflammation and atrophy skeletal are preventable by neutralizing antibodies to chemokine CXCL10. Limb also induced changes gut microbiota intestinal inflammation, either sterilization intestine with antibiotics or administration 10-hydroxy-cis-12-octadecenoic acid-a linoleic acid-derived microbial metabolite-prevented as well...
AimsLeucine-rich α2-glycoprotein (LRG) is considered as a biomarker of the clinical activities chronic inflammatory diseases, including heart failure. However, its pathophysiological roles in cardiac remodelling after myocardial infarction (MI) remain to be clarified. In this study, we have addressed functional LRG MI.
Thin film transistors (TFTs) are indispensable building blocks in any electronic device and play vital roles switching, processing, transmitting information. TFT fabrication processes inherently require the sequential deposition of metal, semiconductor, dielectric layers so on, which makes it difficult to achieve reliable production highly integrated devices. The integration issues more apparent organic TFTs (OTFTs), particularly for solution-processed semiconductors due limits on...
The creation of low-dimensional heterostructures for intelligent devices is a challenging research topic; however, macro- and atomic-scale connections in one-dimensional (1D) electronic systems have not been achieved yet. Herein, we synthesize heterostructure comprising 1D Mott insulator [Ni(chxn)2Br]Br2 (1; chxn = 1R-2R-diaminocyclohexane) Peierls or charge-density-wave [Pd(chxn)2Br]Br2 (2) using stepwise electrochemical growth. It can be considered as the first example liquid-phase epitaxy...
Ultrafast photoinduced transitions of a one-dimensional Mott insulator into two distinct electronic phases, metal and charge-density-wave (CDW) state, were achieved in bromine-bridged Pd-chain compound [$\mathrm{Pd}{(\mathrm{en})}_{2}\mathrm{Br}]{({\mathrm{C}}_{5}\text{\ensuremath{-}}\mathrm{Y})}_{2}{\mathrm{H}}_{2}\mathrm{O}$ ($\mathrm{en}=\text{ethylenediamine}$ ${\mathrm{C}}_{5}\text{\ensuremath{-}}\mathrm{Y}=\text{dialkylsulfosuccinate}$), by selecting the photon energy femtosecond...
PbS quantum dots (QDs) are remarkable semiconducting materials, which compatible with low-cost solution-processed electronic device fabrication. Understanding the doping of these materials is one great research interests, as it a necessary step to improve performance well enhance applicability this system for diverse optoelectronic applications. Here, we report efficient QD films use solution-processable organic molecules. By engineering energy levels donor molecules and QDs through...
We report how mechanical and dynamical properties in formate-based perovskites can be manipulated by the preparation of an A-site solid-solution. In series [NH3NH2]1-x [NH3OH] x Zn(HCOO)3 with xmax = 0.48, substitution [NH3NH2]+ [NH3OH]+ is accompanied a complex changes crystal chemistry which are analysed using PXRD, SCXRD, 1H solid state NMR, DSC nanoindentation. NMR shows increased motion [NH3NH2]0.52[NH3OH]0.48Zn(HCOO)3, results shift ferroelectric-to-paraelectric phase transition...
Abstract Self-organization in π -conjugated polymers gives rise to a highly ordered lamellar structure, which inter-chain stacking spontaneously forms two-dimensional conjugated sheets. This multi-layer stacked nature of semicrystalline allows the inclusion various functional molecules. In particular, redox-triggered ion-intercalation is an ideal system for molecular doping, extremely high charge carrier density has been achieved. Here, we conducted detailed structural analysis and electron...
Thermoelectric energy harvesters based on p- and n-type organic semiconductors are in high demand, while the air stability of devices has long been a challenge. Here, we demonstrate that supramolecular salt-functionalized n-doped ladder-type conducting polymers exhibit excellent presence dry air.
Toward the development of high-performance organic semiconductors (OSCs), carrier mobility is most important requirement for next-generation OSC-based electronics. The strategy that OSCs consisting a highly extended π-electron core exhibit two-dimensional (2D) aggregated structures to offer effective charge transport. However, such OSCs, in general, show poor solubility common solvents, resulting limited solution processability. This critical trade-off between with simultaneous high and...
In this paper, the molecular design of first deep-lowest unoccupied orbital (LUMO) level diimide π-electron core, benzo[ c]thiophene (BTDI), as a novel n-type organic semiconductor was determined. An original synthetic sequence devised to obtain target cyclohexyl-BTDI (Cy6-BTDI) derivative. Cy6-BTDI demonstrated completely reversible reduction waves and stable radical anionic state. Favorable brickwork assembly two-dimensional charge transport properties were exhibited in solid As result,...
Abstract Complementary metal-oxide-semiconductor, an elementary building block, allows for a high degree of implementation logic circuits with relatively low power consumption and manufacturing cost, which plays vital role not only in current Si electronics, but also printed flexible devices. To meet the looming challenges Internet Things, p-channel thin-film transistors (TFTs) excellent mobility processability have been increasingly developed using organic semiconductors. However, owing to...
Abstract Solution-processed organic thin film transistors (OTFTs) are an essential building block for next-generation printed electronic devices. Organic semiconductors (OSCs) that can spontaneously form a molecular assembly play vital role in the fabrication of OTFTs. OTFT processes consist sequential deposition functional layers, which inherently brings significant difficulties realizing ideal properties because underlayers likely to be damaged by application subsequent layers. These...
Large-area single-crystalline thin films of n-type organic semiconductors (OSCs) fabricated via solution-processed techniques are urgently demanded for high-end electronics. However, the lack molecular designs that concomitantly offer excellent charge-carrier transport, solution-processability, and chemical/thermal robustness OSCs limits understanding fundamental charge-transport properties impedes realization large-area The benzo[de]isoquinolino[1,8-gh]quinolinetetracarboxylic diimide...
Abstract Control of electrical doping is indispensable in any semiconductor device, and both efficient hole electron are required for many devices. In organic semiconductors, however, has been essentially more problematic compared to because general semiconductors have low affinities require dopants with ionization potentials that often air-sensitive. Here, we adapt an molecular method, so-called ion-exchange doping, dope electrons a polymeric semiconductor. We initially reduce the using one...