Materials Literature
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In this study, we investigate amorphous silicon nitride passivation stacks in order to combine the excellent surface passivation of amorphous silicon with the excellent firing stability of silicon nitride layers. Structural and lifetime investigations show that these stacks provide an excellent surface passivation qua…
Awarded Best Paper (Student) - Joint Winner - EEA Conference 2011
A series of Ge quantum dot samples with different Ge thickness is grown on n-Si(100) substrates by ion beam sputtering. Their morphology and structure are characterizated using AFM and Raman spectra, in which the evolution of the morphology, density, dimension, crystalline, and composition of the Ge quantum dots are d…
The effect of dietary L-glycine (gly) on the growth and production of pupa and cocoon of the Nistari variety of silk worm Bombyx mori was investigated. Different treatment schedules (2% and 3% gly smeared on the mulberry leaves with once and twice supplementation from 1st and 2nd day of Vth instar larvae) were perform…
Distributions of crude alkaloids, tannin, saponin, anthraquinone, flavoloid and cardiac glycosides in seven medicinal plants belonging to different families were investigated. The plants were Ocimum gratissimum, Cymbopogon citratus, Senna alata, Senna occidentalis, Curcuma longa, Chromolaena odorata and Calotropis pro…
This research work focused on studying two different concentrations of poly (ε-caprolactone) (PCL) and blends of PCL with Poly (lactic acid) (PLA) at five blending rations and that are dissolved in different co-solvents (chloroform: methanol and dichloromethane (DCM) : N,N, dimethylformamide (DMF)). The fibers produce…
Microorganisms play critical roles in the biological, geological, geochemical, and climactic balance of environmental ecosystems. Nanotechnology and its variously engineered nanomaterial products have been implicated as potentially disruptive influences on microbial community health and preservation, thus contributing…
A FeCuNbSiB/FeNi/PZT laminated composite is developed and comparatively studied with a FeNi/PZT laminated composite. The influence of high-permeability FeCuNbSiB alloy on applied DC magnetic field, piezomagnetic coefficient and optimal bias magnetic field of FeNi is investigated. The experimental results show that com…
This paper discusses layout design rules for successful Cu wire bond-over-active-circuitry (BOAC) in 0.18 micron and other IC technologies having Al metallization interconnects (two-level metal and up) in SiO2 dielectric, with W vias. The resulting bond pad structures effectively address BOAC pad reliability concerns,…
The main object of this thesis was to research injection mouldable 0–3 type ceramic polymer composites and their dielectric and magnetic properties in the GHz frequency region. The work has been divided into three sections. In the first section, two–phase ceramic polymer composites containing dielectric and magnetic f…
In order to investigate the decay tendency and the recovery status of the quantum efficiency of reflection-mode NEA GaN photocathode, the quantum efficiency curves have been studied after the photocathode was fully activated, stored in system and supplemented with Cs. The quantum efficiency decay and recovery processe…
Layered magnetoelectric Ni/PZT/TbFe2 composites have been prepared by electroless deposition and bonding method. The influence of the Ni layer thickness on ME coupling and resonance frequency is discussed. The results show that the magnetoelectric coefficient of Ni/PZT/TbFe2 composites changes differently from that of…
Thermal stability studies on some metal soaps of Hura crepitans seed oil prepared by metathesis in aqueous alcohol solution were carried out. The kinetics of the decomposition was studied thermogravimetrically in the temperature range 160 – 200 C. The values of the rate constant are of the order 10min and temperature-…
The physical mechanisms underlying current collapse effects in the passivated GaN high-electron mobility transistors(HEMTs), the gate field-plated GaN HEMTs and the gate-source field-plated GaN HEMTs are investigated in experiments and numerical device simulations. And the intrinsic relationships of the current collap…
Based on the combination of Racah's group-theoretical consideration with Slater's wavefunction, a 91 × 91 complete energy matrix is established in tetragonal ligand field D 2d for Pr 3+ ion. Thus, the Stark energy-levels of Pr 3+ ions doped separately in LiYF 4 and LiBiF 4 crystals are calculated, and our calculations…
In this article, the PEDOT:PSS doped with sorbitol film is fabricated on an ITO substrate by blending-spin coating method and used as a hole-extraction layer for organic solar cell (OSC). The effect of sorbitol concentration on the photovoltaic performance of the device is investigated based on P3HT:PCBM blend. Compar…
The course of oxygen delignification of pulps obtained from two kinds of OCC waste paper was studied. The susceptibility of these pulps to ECF and TCF bleaching processes was also compared with that of birch and pine kraft pulp. The final yield and the intrinsic viscosity of bleached pulps produced from OCC waste pape…
It is shown that adding the nanoparticles of TiO2, MoS2, and Cu, leads to decreasing the surface tension by up to 15%, increasing the thermal conductivity and viscosity by up to 2.5% and increasing the saturated vapor pressure of solutions by up to 0.06 MPa.
Institute of Natural Resources, Massey University, Private Bag 11-222, Palmerston North (4442), New Zealand Topolins are hydroxylated analogues of 6-benzylaminopurine (BAP). They belong to a group of cytokinins with an aromatic side chain, in contrast to the isoprenoid group which contain an aliphatic side chain. Thou…
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