Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
This letter demonstrates GaN vertical Schottky and p-n diodes on Si substrates for the first time. With a total GaN drift layer of only 1.5-$\mu{\rm m}$thick, a breakdown voltage (BV) of 205 V was achieved for GaN-on-Si Schottky diodes, and a soft BV higher than 300 V was achieved for GaN-on-Si p-n diodes with a peak…
In this communication, we introduce the concept of three dimensional (3D) battery electrodes to enhance the capacity per footprint area for lithium-sulfur battery. In such a battery, 3D electrode of sulfur embedded into porous graphene sponges (S-GS) was directly used as the cathode with large areal mass loading of su…
Research on incorporation of both growth factors and silver (Ag) into hydroxyapatite (HA) coatings on metallic implant surfaces for enhancing osteoinductivity and antibacterial properties is a challenging work. Generally, Ag nanoparticles are easy to agglomerate and lead to a large increase in local Ag concentration,…
ADVERTISEMENT RETURN TO ISSUEPREVReviewNEXTSafe Clinical Use of Carbon Nanotubes as Innovative BiomaterialsNaoto Saito*†, Hisao Haniu‡, Yuki Usui‡§, Kaoru Aoki‡, Kazuo Hara‡, Seiji Takanashi‡, Masayuki Shimizu‡, Nobuyo Narita‡, Masanori Okamoto‡, Shinsuke Kobayashi‡, Hiroki Nomura‡, Hiroyuki Kato‡, Naoyuki Nishimura⊥,…
Hematite (α-Fe2O3) thin film electrodes prepared by atomic layer deposition (ALD) were employed to photocatalytically oxidize water under 1 sun illumination. It was shown that annealing at 800 °C substantially improves the water oxidation efficiency of the ultrathin film hematite electrodes. The effect of high tempera…
Although fullerenes and their derivatives, such as PCBM, have been the dominant electron-acceptor materials in organic photovoltaic cells (OPVs), they suffer from some disadvantages, such as weak absorption in the visible spectral region, limited spectral breadth and difficulty in variably tuning the band gap. It is n…
Chalcogenide glasses from (GeTe 4 ) 100−x In x and (GeTe 5 ) 100−x In x with x = 0, 5, 10, 15 and 20 at % systems were investigated to define the glass forming ability. Parameters considered are number of constraints per atom, average coordination number and mean bond energy. The compositional dependence of these para…
In recent decades, the anticancer effect of curcumin has been proven by several studies. Curcumin affects multiple cell signaling pathways and prevents cell proliferation, invasion, metastasis and angiogenesis. However, the aqueous solubility of curcumin and its bioavailability are very low which restricts its antican…
To study the electromagnetic resonance and scattering properties of complex structures of which metallic wire structures are constituents within multiple scattering theory, the t matrix of individual structures is needed. We have recently developed a rigorous and numerically efficient equivalent circuit theory in whic…
In this study, we have studied the electronic structure and magnetic properties of oxygen vacancy on anatase TiO 2 (101) surface using density functional theory (DFT) calculations. The results show that only the vacancy of threefold-coordinated oxygen ( O 3c ) can introduce the magnetism on (101) surface. The spins in…
Abstract The electron donor 2‐isopropylidene‐1,3‐dithiolo[4,5‐d]‐4,5‐ethylenediselenotetrathiafulvalene (3) provides two new molecular conductors, (3)2[M(CN)2] (M = Ag and Au). These salts crystallize in the triclinic P$\bar {1}$ space group. The donor sheet structure of these salts is the so‐called β‐type molecular a…
We describe a micromanipulation and pick-up system for preparing a micrometer-sized single particle for X-ray diffraction characterization. Combining a microgripper based on microelectromechanical systems, piezo-motor-driven linear stages, and a gamepad, the system provides precise and intuitive handling of the object…
We have studied the microscopic magnetic state of a double perovskite Sr 2 FeMoO 6 by x-ray magnetic circular dichroism (XMCD). An Fe L 3,2 -edge XMCD reveals that the formal Fe 3+ ions have an appreciable orbital moment ( m orb ) parallel to their large spin moment ( m spin ), showing the charge-transfer-induced, min…
Thermoluminescence (TL) materials are widely used in radiation measurements. The best-known applications of TL materials are in the dosimetry of ionizing radiation, and in CTV screen phosphors, scintillators, X-ray laser materials, etc. The TL glow curve and its kinetic parameters for annealed LaPO4 at different const…
Reverse Monte Carlo modeling was carried out for Li 7 P 3 S 11 metastable crystal and (Li 2 S) 70 (P 2 S 5 ) 30 glass based on time-of-flight neutron and synchrotron X-ray diffraction data. Polyhedral analysis of three-dimensional structures for Li 7 P 3 S 11 metastable crystal and (Li 2 S) 70 (P 2 S 5 ) 30 glass were…
This paper illustrates the preliminary experimental tests for determining the effective thermal conductivity of ceramic pebble beds versus temperature and compression strains. Ceramic pebble beds are promising candidates to be used in breeding blankets for nuclear fusion reactor as breeder and neutron multiplier. The…
In order to achieve much larger probing depth than the conventional HAXPES system of BL46XU, a HAXPES measurement system equipped with a cylindrical sector analyzer, Focus HV-CSA 300/15 has been developed, by which photoelectrons with the kinetic energy up to 15 keV can be analyzed. The Si 1s peak which comes from the…
Fibroproliferative diseases are one of the leading causes of death worldwide. They are characterized by reactive fibrosis caused by uncontrolled synthesis of type I collagen. There is no cure for fibrosis and development of therapeutics that can inhibit collagen synthesis is urgently needed. Collagen α1(I) mRNA and α2…
The thermoelectric (TE) efficiency of ion-conductive materials is investigated for energy harvesting from heat wastes or wide-spectrum solar radiation. The physical model for the phenomenon has been developed, and experimental results are analyzed here in terms of practical implementation with power conversion at near…
The state of catalysts plays a key role in automotive exhaust gas aftertreatment. The soot or ash loading of Diesel particulate filters, the oxygen loading degree in three-way catalysts, the amount of stored ammonia in SCR catalysts, or the NOx loading degree in NOx storage catalysts are important parameters that are…