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。
Reported here is the first cryogenically-cooled performance of Er 3+ -doped Y 2 O 3 laser based on 4 I 11/2 → 4 I 13/2 transitions. Laser material was diode-pumped directly into an upper laser manifold 4 I 11/2 in order to minimize quantum defect of this Mid-IR laser. CW output power of over 1.6 W at ∼ 2.7 μm was achi…
For a transformer, the annual energy loss depends on the load-dependent efficiency of the transformer and the characteristic load curve at the specific location in the grid or elsewhere. The goal of this work is the comparison of the efficiency and the annual energy losses of a superconducting (from 2G high temperatur…
The development of molecular imaging technologies represents the opportunity to differentiate tissues based upon their metabolic and functional activity rather than structural and anatomic characteristics. The goal of molecular imaging is to reveal the pathophysiology underlying the observed anatomy and to diagnose di…
This study describes the development of a Cu wire bond assembly solution for ICs using low dielectric constant (low K) dielectrics and Cu interconnect, with bond pads designed with aggressive BOA (Bond Over Active) design rules. The various wire bonding challenges imposed by the bond pad material stack and the aggress…
In this paper, we present the current status of GaN-high electron mobility transistor (HEMT) for power-supply-applications. Advantages of GaN HEMT are summarized with discussing required characteristics applying for power supplies. Then, we introduce our Enhancement-mode (E-mode) GaN MIS-HEMT technology. We focused on…
The IUPAC-NIST Solubility Data Series (SDS) is an ongoing project that provides comprehensive reviews of published data for solubilities of gases, liquids and solids in liquids or solids. Data are compiled in a uniform format, evaluated and, where data from independent sources agree sufficiently, recommended values ar…
Nonlinear refractive index of Au nanoparticle suspended in PVA solution was measured using a single beam Z-scan technique. Measurements were carried out using a green CW laser beam operated at 532 nm as excitation source. Five nanoparticle samples with different particle sizes were prepa red by γ radiation method. The…
This paper presents the latest results on electrical characterization of wafer to wafer structures made by direct copper bonding. The bonding was achieved at room temperature, atmospheric pressure and ambient air, followed by a 200°C or 400°C post bonding anneal. Description of the 3D integration process and the test-…
We describe a high concentration photovoltaic (CPV) module utilizing micro-transfer printed (μ-TP) dual-junction GalnP/GaAs solar cells and an ELO (Epitaxial Lift-Off) process used to fabricate very small cells (2) using 1stuse and reused GaAs substrates. The benefits of this technology include high efficiency, simple…
M-type GdTaO4and Tb:GdTaO4bulk single crystals were first grown by Czochralski method. Transmission, excitation, emission spectra and luminescence decay curves of them were measured. The refractive indices of GdTaO4were calculated with its transmission spectrum and fitted with Sellmeier equation. GdTaO4shows Gd3+absor…
Abstract Density‐functional based calculations were used to investigate self‐assembled monolayers of different alkylphosphonic acids on corundum α‐Al2O3 (0001), bayerite β‐Al(OH)3 (001) and boehmite γ‐AlOOH (010) surface models. Mono‐, bi‐, and tridentate adsorption modes were considered. In addition, the organization…
The main reason of the research was to show the very important role of the dielectric losses in the insulation, during the initiation of water release from paper insulation, which is known as the bubble effect. The authors' thesis is that the dielectric losses increase in heavily moistened and aged cellulose insulatio…
Elevated frequencies in high-speed ac machines increase the skin effect in stator windings, making it necessary in many cases to divide each phase winding into high numbers of small-diameter strands connected in parallel. Unfortunately, circulating currents among the strands in a single bundle can significantly increa…
Comparative influence of two nanoparticles viz. superparamagnetic iron oxide nanoparticles (SPION) and nanobarium titanate (NBT) was studied upon the in-vitro and in-situ low-density polyethylene (LDPE) biodegradation efficiency of a potential polymer-degrading microbial consortium. Supplementation of 0.01% concentrat…
AIM: The investigation was aimed at designing a micellar nanocarrier of sumatriptan for nose-to-brain delivery and to identify the probable pathway of drug transport to the brain. MATERIALS & METHODS: Micellar nanocarriers were formulated using various safe and acceptable excipients. Optimized formulation was characte…
The 239Pu and 241Pu neutron-induced fission cross sections have been measured from subthermal energies to 200 MeV. These measurements are part of a campaign to measure fission cross sections with high precision in support of advanced fast reactor technology. Plutonium-241 is the most active target measured in this pro…
This account highlights recent research from our laboratory on nonaqueous plutonium coordination chemistry. The preparation of organic-soluble synthons, the reactivity of plutonium with soft donor atom ligands, and initial characterization of resultant complexes are presented. Homoleptic soft donor complexes are targe…
Several groups have reported on intermediate band solar cells (IBSC) fabricated with InAs/GaAs quantum dots (QD) which exhibit quantum efficiencies (QE) for sub-bandgap photon energies. However, this QE is produced by the absorption of photons only through valence band (VB) to intermediate band (IB) transitions. The a…
This work presents experimental responses of single ultrasound contrast agents to short, large amplitude pulses, characterized using double passive cavitation detection. In this technique, two matched, focused receive transducers were aligned orthogonally to capture the acoustic response of a microbubble from within t…
This paper describes a freeware program that computes the optical losses associated with the front surface of a silicon solar cell. The optical losses are not trivial to assess because (i) the refractive index and extinction coefficient of silicon, antireflection coatings (ARCs), and encapsulants varies with wavelengt…