Enhanced electrochemical performance of NiO by addition of sulfonated graphene for supercapacitors
Porous NiO/sGNS composites with enhanced electrochemical performances were successfully fabricated using ammonium carbamate as a precipitating agent.
Materials Literature
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Facile, fine post-tuning of the longitudinal absorption wavelengths of pre-synthesized gold nanorods by introducing sulfide additives
The longitudinal absorption wavelength of pre-synthesized gold nanorods is precisely tuned by introducing controlled amounts of sulfide additives, which allows a powerful second chance to adjust the absorption wavelength of gold nanorods.
Xenon Gamma-detector Applicability for Identification and Characterization of Radioactive Waste
In this paper described applicability of xenon gamma detector for identification and characterization of radioactive waste was researched. Standard calibration gamma ray sources were used to determine real physical and technical characteristics of xenon gamma spectrometer. Samples of radioactive waste were measured by…
Incorporation of Nanohybrid Films of Silica into Recycled Polystyrene Matrix
An alternative for the reutilization of polystyrene waste containers consisting in creating a hybrid material made of SiO2 nanoparticles embedded in a matrix of recycled polystyrene (PSR) has been developed. Recycled polystyrene functionalized (PSRF) was used to influence the morphological and antifog properties by th…
Coherent light-driven electron transport through polycyclic aromatic hydrocarbon: laser frequency, field intensity, and polarization angle dependence
A laser field is a potential control tool for operating ultrafast electronic devices due to a wide variety of options such as field strength, frequency, and polarization. To investigate these variables upon electron transport through a single-molecule device, we simulate a phenyl-acetylene macrocycle (PAM) within a li…
Ion template effects of 4,5-dicyanoimidazole in the assembly of a series of 3D bimetallic coordination networks
Nine 3D isomorphic bimetallic coordination polymers with different alkali metals (Na, K, and Rb) and halides (Cl, Br, and I) have demonstrated that the 4,5-dicyanoimidazole ligand is a good template in the assembly of bimetallic–organic networks. This provides an excellent template for the investigation of ion exchang…
Electron confinement induced by diluted hydrogen-like ad-atoms in graphene ribbons
We report the electronic properties of two-dimensional systems made of graphene nanoribbons, which are patterned with ad-atoms in two separated regions. Due to the extra electronic confinement induced by the presence of impurities, we find resonant levels, quasi-bound and impurity-induced localized states, which deter…
Regulating the size and molecular weight of polymeric particles by 1,1-diphenylethene controlled soap-free emulsion polymerization
Nanoparticles with various sizes and molecular weights were produced via altering the amount of the monomer and DPE in the SFEP.
New conjugated molecules with four DPP (diketopyrrolopyrrole) moieties linked by [2,2]paracyclophane as electron acceptors for organic photovoltaic cells
Two conjugated molecules were investigated as electron acceptors for OPVs and it was observed that their power conversion efficiency can reach 1.84% after blending with P3HT.
Two-way chromic interconversion of the 2,2′-biphenol-6,6′-diyl dication with 5H,10H-dioxapyrene or 9H,10H-4,5-dihydroxyphenanthrene
Two-proton or two-electron transfer of the title biphenolic dication proceeds nearly simultaneously to induce 2,6'/2',6- or 6,6'-bond formation to give dioxapyrene or dihydrophenanthrene derivatives, respectively, with vivid changes in color (halochromism and electrochromism).
A modified De-Gennes's trumpet model for the prediction of practical adhesion of dynamically- and structurally heterogeneous polymeric networks on solid surfaces
A theoretical model for the prediction of practical adhesion of dynamically- and structurally heterogeneous polymeric networks on solid surfaces.
Exploration of charge transfer and absorption spectra of porphyrin–polyoxometalate hybrids to search for high performance sensitizers
Lindqvist-, Keggin-, and Anderson-type polyoxometalate organic–inorganic hybrids were designed to investigate their charge transfer character and screen them as high performance p-type sensitizers.
Oriented Conjugates of Single-domain Antibodies and Fluorescent Quantum Dots for Highly Sensitive Detection of Tumor-associated Biomarkers in Cells and Tissues
Our recent results in the field of engineering and application of highly oriented conjugates of single-domain antibodies and fluorescent quantum dots are summarized. These novel conjugates proved to be excellent nanoprobes for immunolabeling of tumor-associated biomarkers on cells and tissue specimens detectable by me…
Organic dyes for the sensitization of nanostructured ZnO photoanodes: effect of the anchoring functions
Nanocrystalline ZnO performs remarkably well as photoanode when it is sensitized with fully organic D–π–A dyes.
Diverse structures of mixed-metal oxides containing rare earths and their magnetic properties
The solid state chemistry of mixed-metal oxides containing rare earths (4f elements) and 4d or 5d transition elements has attracted a great deal of interest, because these materials adopt a diverse range of structures and show a wide range of electronic properties due to 4f and 4d (or 5d) electrons. We have focused ou…
Role of oxygen defects in inducing the blue photoluminescence of zinc oxide films deposited by magnetron sputtering
A number of zinc oxide (ZnO) films are deposited on silicon substrates using the magnetron sputtering method. After undergoing thermal treatment under different conditions, those films exhibit hexagonal wurtzite structures and different photoluminescent characteristics. Besides the notable ultraviolet emission, which…
Aging dependent phase transformation of mesostructured titanium dioxide nanomaterials prepared by evaporation-induced self-assembly process: Implications for solar hydrogen production
Mesostructured titanium dioxide materials were prepared by Evaporation-Induced Self-Assembly (EISA) method using titanium isopropoxide and a cationic surfactant. The titania phase could be tuned by simply varying the aging time. As the aging time increased, hierarchically structured mesoporous materials with mixed pha…
pH-dependent size and structural transition in P123 micelle induced gold nanoparticles
The transition of the structure and size of AuNPs at a pH value around 9.5, from slowly grown, well-faceted, large (≫19 nm), less uniform and near connected to fast grown, near symmetrical, small (<19 nm), more uniform and well-separated, is observed.
Molecular design of new organic sensitizers based on thieno[1,4]benzothiazine for dye-sensitized solar cells
A novel thieno[1,4]benzothiazine donor has been developed for the first time to construct metal-free organic sensitizers, which exhibit more dramatically red-shifted absorptions than phenothiazine-based dyes.
Polarization-dependent extraordinary optical transmission from upconversion nanoparticles
Enhanced upconversion (UC) emission was experimentally demonstrated using gold double antenna nanoparticles coupled to nanoslits in gold films. The transmitted red emission from UC ytterbium and erbium co-doped sodium yttrium fluoride (NaYF4:Yb(3+)/Er(3+)) nanoparticles (UC NPs) at ∼665 nm (excited with a 980 nm diode…