Materials Literature
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We have developed an air-stable inverted structure of poly(3-hexylthiophene) (P3HT) : cadmium selenide (CdSe) hybrid solar cells using a cesium-doped ZnO (ZnO:Cs) electron transport layer. The ZnO:Cs layer was simply prepared at low temperature by the sol–gel process using a ZnO solution containing cesium carbonate (C…
Carbon nanotube reinforced aluminium nano-composites were produced using powder metallurgy route with different weight percent of CNT into the Al matrix. The wear behaviour of pure aluminium (Al) and carbon nanotube reinforced aluminium (CNT-Al) nano-composite with different CNT content were studied with a pin-on-disc…
The fabrication of fully transparent thin-film transistor (TFT) arrays composed of metal oxides and SWCNTs was performed on a glass substrate through simple all-solution-processed, vacuum-free routes followed by thermal annealing treatments at 350 °C which is the lowest processing temperature reported to date. We adop…
We developed a two-step hydrothermal method to prepare hetero-structured TiO2 nanotree arrays on FTO substrates. This process included the deposition of rutile nanorod arrays with a length of about 2 μm as trunks at first and then the growth of the anatase nanosheets with the thickness of less than 10 nm standing on t…
A complete, functioning dye-sensitized solar cell made of popular indoline D149 sensitizer is studied by means of transient absorption in visible light in the time scale of nanoseconds to seconds. Photocurrent and photovoltage decays are also measured under the same experimental conditions. A local electric field caus…
SO2 is the main acidic impurity in flue gas and will affect amine degradation in CO2 capture process. This work introduced SO2/Na2SO3 in various experiment conditions of MEA (monoethanolamine) oxidative degradation and evaluated the SO2 effect on MEA degradation considering both oxidative and thermal degradation. 60 p…
Photoelectrochemical (PEC) water splitting holds great promise for harvesting solar energy. We found that the high energy electron beam irradiation has a strong influence on the photoelectrochemical water splitting performance of aerosol deposited (AD) TiO2 thin films. A high energy electron beam with energy of 0.2 Me…
Size effects are the main problem in micro-forming process and material behavior with miniaturization of feature size. In the paper, size effects of grain size and foil thickness on deformation behavior and fracture were investigated by using micro tensile test of SUS304 foil. The results show that the yield strength…
Owing to the inability of self-replacement by a damaged myocardium, alternative strategies to heart transplantation have been explored within the last decades and cardiac tissue engineering/regenerative medicine is among the present challenges in biomedical research. Hopefully, several studies witness the constant ext…
The ring-opening metathesis polymerization (ROMP) of cyclooctene (COE) has been achieved with Grubbs 2nd generation ruthenium catalyst in the presence of vinyl or acryloyl derivatives of glycerol carbonate. Such asymmetric chain-transfer agents enabled the synthesis in high yields of α-cyclocarbonate,ω-vinyl-poly(cycl…
The performance of GaN power devices has been rapidly improving. Recently, the main approach is the use of AlGaN/GaN HEMT structures on Si substrates, for which the target breakdown voltage is initially 600V or less. Although issues still remain with regard to current collapse and the threshold voltage required for no…
Uniform SiO2@CdS mesoporous nanospheres with an average diameter of 300 nm have been synthesized successfully by a facile process. The as-prepared mesoporous composite nanospheres have a BET-specific surface area of 640 m(2) g(-1) and an average pore size of 2.82 nm. The results demonstrated that more than 60% Rhodami…
Polyethylenimine (PEI), one of the most frequently used polycations for non-viral nucleic acid delivery, exhibits good transfection efficiency to cultured cells but generally has to be used in restricted concentration ranges due to high cytotoxicity. We recently reported a family of HPMA-co-oligolysine brush copolymer…
We discuss donor–acceptor conjugated polymers where the acceptor moieties are orthogonal to the donor-based backbone direction through the synthesis and study of a new class of materials (including six oligomers and three polymers) based on 4H-cyclopentadithiophene (CPDT) with an imine functionality introduced at the…
Two medium gap semiconducting polymers, P(1)-Q-BDT-4TR and P(2)-FQ-BDT-4TR, based on alternate units of alkyl-dithiophene substituted benzodithiophene (BDT) and quinoxaline units (without or with fluorine substitution), are synthesized and fully characterized. The polymers exhibit optical and electrical properties fav…
One-dimensional nanowire (NW) optical sensors have attracted great attention as promising nanoscale tools for applications such as probing inside living cells. However, achieving single molecule detection on NW sensors remains an interesting and unsolved problem. In the present paper, we investigate single-molecule de…
X-ray photoelectron spectra, X-ray diffraction patterns, scanning electron microscopy images, and high-resolution transmission electron microscopy images showed that the as-prepared samples were Cu2ZnSnS4 (CZTS) nanospheres with a kesterite phase. Ultraviolet-visible absorption spectra for the CZTS nanospheres with an…
Poly- ε -caprolactone (PCL) is a biodegradable polyester that has received great attentions in clinical and biomedical applications as sutures, drug delivery tool, and implantable scaffold material. Silica aerogel is a material composed of SiO 2 that has excellent physical properties for use in drug release formulatio…
Building materials, collected from different sites in Ramsar, a northern coastal city in Iran, were analyzed for their natural radionuclide contents. The measurements were carried out using a high resolution high purity Germanium (HPGe) gamma-ray spectrometer system. The activity concentration of (226)Ra, (232)Th, and…
The d(10)-metal-oxo clusters connected by the asymmetric tricarboxylate and linear neutral ligands give rise to two novel high-connected MOFs. They feature the highest (3,16)- and (3,8)-connected three-dimensional frameworks based on cube-like octanuclear [Zn8(μ2-OH)4(CO2)12] clusters and butterfly-like tetranuclear […