Materials Literature
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In the effective-mass approximation the single-electron states in a direct-band CdS/ -HgS/CdS nanocylindrical heterolayer in the presence of strong lateral radial electrostatic field are considered. The explicit forms of the energy spectrum and envelope wave functions of single-particle states for charge carriers are…
This paper introduces atomic force microscope (AFM) deposition method to fabricate nanostructures and nanodevices. Field emission theory is introduced in this paper, which provides theoretical explanation for AFM deposition. Dot matrixes are fabricated by AFM deposition on three different substrates, Si, Au and GaAs.…
The paper mainly focuses on the ability of absorbing hydrogen molecule of the dimetallocene (C5H5)2TM2(TM=Ti/Zn/Cu/Ni) based on the first-principles calculation. The result indicates that these compounds can adsorb up to eight hydrogen molecules, the binding energy is 0.596eV/H2 for Cp2Ti2, 0.802eV/H2 for Cp2Zn2, 0.42…
디올 성분으로 폴리(테트라메틸렌 글리콜)(PTMG)과 함께 말단에 히드록시에틸기를 갖는 폴리디메틸실록산(PDMS-OH)을 혼합하여 사용하면서, 이소시아네이트 화합물로 이소포론 디이소시아네이트를, 수분산성을 부여하기 위해 디메틸올 프로피온산을, 가교제로 트리메틸올프로판을, 사슬연장제로 부탄디올을 사용하여 실록산 성분을 포함하는 선형 및 가교형 수분산성 폴리우레탄(WPU-Si)을 합성하였다. PTMG와 PDMS-OH 혼합 비율을 달리하여 합성한 선형 및 가교형 WPU-Si 에멀젼의 안정성을 분석하였고, 이들을 필름으로 제조하여 표면 특성과 $T_g$ , 인장 강신도 변…
Quantum dot triple junction solar cells (QD TJSCs) have potential for higher efficiency for space and terrestrial applications. Extended absorption in the QD layers can increase efficiency by increasing the short circuit current density of the device, as long as carrier extraction remains efficient and quality of the…
Abstract DFT calculations for the high‐pressure polymorph
A cavity enhanced one-dimensional grating structure is proposed to improve the light absorption within the α-Si thin film solar cell. Typically, dielectric or metal structure including gratings is added for the light absorption enhancement. Not only does the structure form the guided modes, and increase the surface ar…
Abstract Review: 188 refs.
Several methods have been used to determine the temperatures of systems formed in multifragmentation reactions. From these temperatures, caloric curves can be constructed and possible nuclear phase transitions can be explored. This work presents a previously observed, low temperature phase transition predicted by a th…
Abstract Na2[Ni3(H2O)14] [(Mo16O32)Ni16(OH)8 (H2PO4)4( HPO4)16(PO4)4 (H2O)8]·14H2O is hydrothermally synthesized from a mixture of NiCl2, Na2MoO4, Mo, and H3PO4 in H2O (autoclave, 160 °C, 4 d, 30% yield).
We present experimental evidence for ferromagnetism in C60 polymerized under ultra-violet radiation in ambient hydrogen atmosphere. Polymerization was confirmed with measurements of the Raman peak for Ag(2) mode and of chemical shifts in 13C nuclear magnetic resonance (NMR) spectroscopy. 1H-13C cross polarization NMR…
We have studied the effect of positive and negative back gate voltage on the Schottky barrier of few layer graphene transistors (devices) in the presence of Air, Nitrogen and different ethanol vapor concentrations.The presence of the Schottky barrier in these devices is attributed to unintentional doping of the differ…
The aim of this study is to prepare polypropylene (PP) / nickel coated carbon fiber (NiCF) or stainless steel (SUS) fiber composites possessing electromagnetic interference (EMI) shielding effectiveness (SE). A series of conductive composites were prepared by the melt blending method. The EMI SE of conductive composit…
Micromagnetic simulation is performed on a ferromagnetic nanoparticle with lateral gradient magnetization in order to study its resonance modes and magnetizaiton dynamics mechenism under microwave frequency. The ferromagnetic resonance spectra and magnetzation reversal are calculated with dc magnetic field from 0 to 6…
For measuring the high-g impaction and overload of some conditions, a kind of high-g accelerometer was designed. Testing and analysis to the accelerometer was processed through launching projectile to penetrate concrete target. Four fixed end structure was adopted in the design of the high-g accelerometer and the cham…
Page-oriented holographic data storage (HDS) is very sensitive to the disturbances. However, vibration effect by disc imbalance can be ignored because data pages are recorded and retrieved with stop-go rotation. Therefore, just estimating de-track due to eccentricity of disc is enough to construct stable track servo s…
Abstract PbWO4 dendrites are prepared by irradiation of an aqueous solution of K2C2O4, Na2WO4, and Pb(NO3)2 with a high‐intensity ultrasonic horn under ambient air.
Among the bone graft biomaterials, calcium sulfate (CS) is a kind of resorbable calcium salt which is the earliest inorganic material used as a bone graft. Although it is well biocompatible, the dissolution rate is always too fast which cannot stay long enough to support bone regeneration effectively. Recently, a new…
Abstract Review: 135 refs.
Abstract The title compound is synthesized by hydrothermal reaction of Na2MoO4, As2O3, CuCl2, and en in H2O (autoclave, 140 °C, 5 d, 45% yield).