Materials Literature
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The CuZnAl/HZSM-5, CuZnAlCr/HZSM-5, CuZnAlZr/HZSM-5, CuZnAlCo/HZSM-5, and CuZnAlCe/HZSM-5 catalysts that were prepared by a co-precipitation method was used for hydrogen production from steam reforming of dimethyl ether (SRD) in a metal foam micro-reactor. These catalysts were characterized by means of XRD, TPR, SEM a…
Interfacial structure of composites of poly( m -xylylen adipamide) (MXD6) and silica nano-particles (SNPs) was investigated by differential scanning calorimetry (DSC), X-ray diffractometry (XRD), and infrared (IR) spectroscopy. In the DSC curves of the composites, changes in specific heat similar to a glass transition…
An indoline dye-coupled polyviologen was designed as a possible photoanode material for organic photovoltaic cells. A new donor–acceptor (D–A) coupled molecule (CVD131) was immobilized on a current collector by the reductive electropolymerization of its two cyanopyridinium moieties. The formed polyviologen could effic…
The effects of background Zn doping on the performance of p–i–n GaAs solar cells with InGaAs/GaAsP multiple quantum wells (MQWs) in i-GaAs layer have been studied. The crystal growth was done by a planetary metalorganic vapor phase epitaxy (MOVPE) reactor. The background Zn doping, in an order of 10 17 cm -3 , degrade…
Cu 2 O thin films were deposited on indium–tin-oxide-coated glass from an aqueous solution containing CuSO 4 , lactic acid and KOH by the galvanostatic electrochemical deposition at 40 °C with several different current densities. The photo-absorption of Cu 2 O was increased and the conduction type was changed from wea…
The recently published second edition of Handbook of Plasticizers , edited by Dr George Wypych, contains a comprehensive review of information available in the open literature, such as published scientific papers, information from plasticizer manufacturers and patent literature, according to publisher ChemTec Publishi…
By adjusting an optical power of an infrared laser illuminating a vanadium dioxide (VO 2 ) thin film, we have demonstrated a laser-assisted control of a field-induced electrical oscillation (FIEO) in a two-terminal device based on a VO 2 thin film fabricated by pulsed laser deposition. Through the control of the laser…
The present study investigates the specific drug targeting of anti cancer drugs, such as carboplatin by incorporation into folate conjugated Solid Lipid Nanoparticles (SLN). Our results showed that SLN 5 has the greater entrapment efficiency of 87.50% and slow in-vitro drug release (65.31% of carboplatin was released…
The relationship between the photo leakage current and photo induced bias stress instability of zinc oxide thin-film transistors (ZnO TFTs) was investigated. As reported in our previous work, electron traps existing near the valence band ( E V ) affect the photo leakage current of ZnO TFTs. When a negative bias stress…
Recent reports on the observation of room temperature ferromagnetism in Cu doped ZnO have been highly regarded by the scientific community. There are several contradicting reports where some authors have confirmed the occurrence of ferromagnetism in ZnO while others have ruled it out. Even in studies where room temper…
We investigated the effect of H 2 S annealing on Sb-doped Cu–In–S thin films prepared using a vacuum evaporation method. These CuInS 2 thin films were grown successfully when annealed above 350 °C in H 2 S atmosphere. It was found that the thin films were closer to stoichiometry at lower annealing temperatures compare…
Ge quantum dot (QD) layers inserted in an intrinsic region of a Si p–i–n diode cause additional photon absorption at longer wavelengths of the solar spectrum. We studied the mechanism of carrier extraction in Ge/Si QD solar cells using photocurrent, capacitance, and photoluminescence measurements. Our findings show th…
The effect of a zinc oxide (ZnO) interfacial layer on the device performance of polymer solar cells based on poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl-C 61 -butyric acid methyl ester (PCBM) was studied. When a 15 nm ZnO layer was inserted between the active layer (P3HT:PCBM) and Al electrode, the power conversion…
We formed Cu(In,Ga)(S,Se) 2 films using a three-stage process. The grain size of the films was reduced by increasing their S concentration. Judging from the phase diagrams of Cu–S and Cu–Se, a decrease in grain size with the increase in S concentration may be due to the higher the melting point of Cu 2 S compared to t…
TiO 2 -based resistive switching memory devices with an inserted ZnO layer were fabricated, and the effect of inserting a ZnO layer between the TiO 2 and bottom electrode on the reliability characteristics of TiO 2 -based memory devices was investigated. The improved endurance and retention performances were achieved…
Penelitian ini bertujuan untuk mengetahui kinerja isolator polimer jenis epoksi resin 20 kV dalam kondisi kabut garam dan dibandingkan dengan kabut bersih. Pengukuran dilakukan dalam suatu kamar kabut (Test Chamber) yang temperaturnya diatur menjadi 3 tingkatan, yakni tingkat rendah (00 – 250C), sedang (250 – 350C) da…
In the USA, Forest Products Laboratory (FPL), part of the US Forest Service, has opened a pilot plant for the production of wood-derived cellulosic nanomaterials. Located in Madison, WI, the US$1.7 million facility is the first of its kind in the USA and establishes FPL as the country's leading producer of forest-base…
We have successfully prepared ZnCuInS 2 (Zn 2 x Cu 1- x In 1- x S 2 , ZCIS) thin films by spray pyrolysis deposition (SPD). The bandgap of the ZCIS thin film was widely controlled from 1.4 to 3.4 eV by substituting Zn for Cu and In of CuInS 2 (CIS). The resistivity of the ZCIS film was controlled by adjusting depositi…
Fuel cells are electrochemical devices that convert chemical energy of fuels directly into electrical energy without the Carnot limitation. Even in the smallest power range of less than 10 kW, fuel cells exhibit electrical efficiencies of 35-50 %LHV (lower heating value). Therefore, the fuel cell which can be operated…
Background and objective: The use of silver nanoparticles is one of the functional areas of nanotechnology. These nanoparticles have an antibacterial and antifungal quality. The active ions released form silver nanoparticles can produce free radicals and damage different types of cell. Considering the importance of he…