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。
Abstract Atom transfer radical polymerization (ATRP) rate for methyl methacrylate (MMA) in acetonitrile solution has been measured up to 2500 bar. The increase in rate, by up to two orders of magnitude for the CuBr/Me6TREN system, is not compromised by an increase in dispersity. Activation–deactivation equilibrium con…
The elastic–plastic transition of crystals at small length scales can be quantitatively evaluated by sudden discontinuities (pop-ins) on nanoindentation load–displacement curves. For defect free crystals under nanocontacts, pop-in stress fluctuations result purely from the thermally activated process of homogeneous di…
Momentum matching at hybrid junctions is examined for efficient broadband energy transfer between internal reflection guided waves and evanescence-based plasmonic-gap guided waves. We demonstrate a nanoscale orthogonal junction coupler between 50 nm air-filled plasmonic slot waveguides (PSWs) and 450 nm silicon rib wa…
The effects of Mg metallic interlayer on the magnetic properties of thin CoFeB films in MgO/Mg (tMg)/CoFeB (1.2 nm)/Ta structures were studied in this letter. Our experimental result shows that the CoFeB film exhibits perpendicular magnetic anisotropy (PMA) when the CoFeB and MgO layers are separated by a metallic Mg…
Poly( N -vinylimidazole) homopolymer (PVIm) and poly( N -vinylimidazole)- l -poly(tetrahydrofuran) (PVIm- l -PTHF), a novel amphiphilic polymer conetwork (APCN), were synthesized to compare their solid state structure and investigate the swelling behavior of this unique conetwork in water. A short-range ordered struct…
Synthesis and photovoltaic properties of two donor–acceptor polymers containing benzodithiophene with 3,3′,5-trihexylbithienyl substituents are reported. Benzo[ c ][1,2,5]thiadiazole and 5-hexylthieno[3,4- c ]pyrrole-4,6-dione were used as acceptor building blocks for the synthesis of donor–acceptor polymers. The phot…
Papayas are popular in tropical and subtropical regions and are being exported in large volumes to Europe, the United States, and Japan. The fruit has a sweet, exotic flavor and is rich in vitamins A and C and antioxidants. However, due to its highly perishable nature, it has not emerged as a major traded fruit. Papay…
Abstract A comparison of quadrupole mass spectrometric (QMS) and transmission electron microscopic (TEM) characterization of silver nano‐cluster deposition produced by a nano‐cluster source consisting of a planar DC magnetron sputter source in a high pressure gas aggregation chamber is presented and discussed. Cluster…
A high sensitive nano superconducting quantum interference device (nanoSQUID) operating as a magnetic flux to critical current transducer with a suitable feedback circuit is employed to measure the magnetization of ferrimagnetic iron oxide nanoparticles. An improved SQUID responsivity has been obtained by using a loop…
We analyze a simple microscopic model to pump heat from a cold to a hot reservoir in a nanomechanical system. The model consists of a one-dimensional chain of masses and springs coupled to a back gate through which a time-dependent perturbation is applied. The action of the gate creates a moving phononic barrier by lo…
We report a development of reduced graphene oxide (rGO)-based gas sensors with a practical recovery by facile functionalization with tin dioxide nanoclusters. Upon the introduction of UV illumination to this nanostructure, the reaction on surfaces of tin dioxide nanoclusters was activated and thereby the nanoscale het…
Introduction of heavy atoms around photosensitizers (PSs) generally facilitates intersystem crossing (ISC) and improves their quantum yield of singlet oxygen ((1)O(2)) generation ability, which is a key species in photodynamic therapy (PDT). Here, we report Pt(IV)- and Au(III)-modified silica nanoparticles (SN) as the…
We demonstrate that the divide-expand-consolidate (DEC) scheme--which has previously been used to determine the second-order Møller-Plesset (MP2) correlation energy--can be applied to evaluate the MP2 molecular gradient in a linear-scaling and embarrassingly parallel manner using a set of local Hartree-Fock orbitals.…
We investigated the origin of strong magnetic anisotropy energy (MAE) in L10-type ordered FeNi phase by angular-dependent magnetic circular dichroism. Our findings showed that the orbital magnetic moment of Fe has a significant angular dependence that exhibits a maximum value at the [001] direction corresponding perpe…
Ultrasonic interferometry measurements in conjunction with in situ X‐ray techniques have been used to measure compressional and shear wave velocities and densities of MgSiO3perovskite (Mg‐Pv) and Mg0.95Fe0.042+Fe0.013+SiO3perovskite ((Mg, Fe)‐Pv) in the multianvil at pressures up to 25 GPa and temperatures to 1200 K.…
Long wavelength (525–575 nm) (112¯2) light emitting diodes were grown pseudomorphically on stress relaxed InGaN buffer layers. Basal plane dislocation glide led to the formation of misfit dislocations confined to the bottom of the InGaN buffer layer. This provided one-dimensional plastic relaxation in the film interio…
Conductive yarns are used for integration of sensors and other electronic devices with textile fabrics through weaving, knitting, braiding or embroidery processes. In the lifetime of the textile also several washing cycles might occur. These processes involve rubbing which may lead to displacement of conductive fibres…
An experimental study was carried out of various factors affecting the ballistic penetration resistance of elastomer/steel bilayers. For blunt penetrators, the contribution of the coating to performance is optimized using the hardest substrates, front surface placement of the elastomer, and (when normalizing by added…
The elastic response of metallic glasses (MGs) is inhomogeneous, due to the wide variation of local structural arrangements. Here, we present molecular dynamics simulations on a one-million-atoms sample of a Cu64Zr36 model MG, correlating the atomic strain and non-affine displacement with short-range order. Cu atoms i…
Bulk heterojunction (BHJ) polymer solar cells (PSCs) that can be fabricated by solution processing techniques are under intense investigation in both academic institutions and industrial companies because of their potential to enable mass production of flexible and cost-effective alternative to silicon-based solar cel…