Near-infrared absorbing particles that includes a cesium tungstate is provided. In the near-infrared absorbing particles, the cesium tungstate has a pseudo hexagonal crystal structure modulated to one or more crystal structures selected from orthorhombic crystal, rhombohedral crystal, and cubic crystal. The cesium tungstate is represented by a general formula Cs.sub.xW.sub.yO.sub.z, and has a composition within a region surrounded by four straight lines of x=0.6y, z=2.5y, y=5x, and Cs.sub.2O:WO.sub.3=m:n (m and n are integers) in a ternary composition diagram with Cs, W, and O at each vertex.

Systems and methods relate to applying a coating to a substrate. Coatings can be generated using layer-by-layer application techniques. Typically, application of a first aqueous solution is alternated with application of a second aqueous solution. Example first aqueous solutions include polyethyleneimine (PEI) and hydroxy-terminated poly(dimethylsiloxane) (PDMS-OH). Example second aqueous solutions include silicate and PDMS-OH. In some instances, first aqueous solutions and/or second aqueous solutions additionally include methyl-terminated PDMS (PDMS-CH.sub.3).

A one dimensional (1D) nanoarray of SnO nanostructures on a substrate is disclosed. The nanostructures of SnO have diameters of 200 nm-1 μm and lengths of 500 nm-3 μm, and are attached to and substantially perpendicular to the substrate. The one-dimensional nanoarray may have a nanostructure density of 220-300 nanostructures per 100 μm.sup.2 substrate and a band gap energy of 2.36-2.46 eV. The one-dimensional nanoarray may be formed by anodization of Sn foil in an electrochemical cell subjected to a voltage of 15-25 V for 1-3 hours at room temperature. The formed one-dimensional nanoarray may be used for the photo-electrochemical decomposition of water into O.sub.2 and H.sub.2.

The invention pertains to the field of nanotechnology. More particularly, the invention relates to highly luminescent nanostructures, particularly highly luminescent nanostructures comprising an indium-doped ZnSe core and ZnS and/or ZnSe shell layers. The invention also relates to methods of producing such nanostructures.

The invention has for its object to provide an aqueous solution for structural separation capable of acting on carbon nanotubes (CNTs) having a specific structure thereby separating them with high accuracy, a separation and recovery method capable of allowing the aqueous solution to act on CNTs having a specific structure thereby separating and recovering them, and CNTs obtained by the separation and recovery method. According to the invention, it is possible to separate CNTs having a specific structure with high accuracy by solubilizing lithocholic acid or a lithocolic acid isomer that has high hydrophobicity and is insoluble in water by itself, and a carbon nanotube obtained by using an aqueous solution containing lithocholic acid or a lithocholic acid isomer, each solubilized, as an aqueous solution for structural separation of CNTs.

The present invention relates to a solar wavelength conversion material with improved efficiency, and a solar cell comprising same. According to one embodiment of the present invention, the present invention provides a solar wavelength conversion material comprising an aluminum hydroxide precursor, and a lanthanide ion or a derivative containing same.

Provided is a method of making colloidal selenium nanoparticles. The method includes the steps as follows: Step (A): providing a reducing agent and an aqueous solution containing a selenium precursor; Step (B): mixing the aqueous solution containing the selenium precursor and the reducing agent to form a mixture solution in a reaction vessel and heating the mixture solution to undergo a reduction reaction and produce a composition containing selenium nanoparticles, residues and a gas, and guiding the gas out of the reaction vessel, wherein an amount of the residues is less than 20% by volume of the mixture solution; and Step (C): dispersing the selenium nanoparticles with a medium to obtain the colloidal selenium nanoparticles. The method has advantages of simplicity, safety, time-effectiveness, cost-effectiveness, high yield and eco-friendliness.

The present invention relates to alumina flakes having a defined thickness and particle size distribution and to their use in varnishes, paints, automotive coatings, printing inks, masterbatches, plastics and cosmetic formulations and as substrate for effect pigments.

The present invention relates to alumina flakes having a defined thickness and particle size distribution and to their use in varnishes, paints, automotive coatings, printing inks, masterbatches, plastics and cosmetic formulations and as substrate for effect pigments.

The present invention further provides a method of making an metal-loaded aluminosilicate zeolite having a maximum pore opening defined by eight tetrahedral atoms from pre-existing aluminosilicate zeolite crystallites, wherein the metal is present in a range of from 0.5 to 5.0 wt. % based on the total weight of the metal-loaded aluminosilicate zeolite.