Fast Lithium Ion Conduction in Garnet‐Type Li7La3Zr2O12

https://dr.ntu.edu.sg/bitstream/10356/96770/1/30.%20Application%20of%20Layered%20Double%20Hydroxides%20for%20Removal%20of%20Oxyanions.pdf

Application of layered double hydroxides for removal of oxyanions: A review

Low cost photovoltaic modules based on dye sensitized nanocrystalline titanium dioxide and carbon powder

TiO2 thin films were prepared on fused quartz by the liquid-phase deposition (LPD) method from a (NH4)2TiF6 aqueous solution upon addition of boric acid (H3BO3) and calcined at various temperatures. The as-prepared films were characterized with thermogravimetry (TG), Fourier transform infrared spectra (FTIR), X-ray diffraction (XRD), UV−Visible spectrophotometry (UV−Vis), scanning electron microscopy (SEM), photoluminescence spectra (PL), and X-ray photoelectron spectroscopy (XPS), respectively. The photocatalytic activity of the samples was evaluated by photocatalytic decolorization of methyl orange aqueous solution. It was found that the as-prepared TiO2 thin films contained not only Ti and O elements, but also a small amount of F, N, and Si elements. The F and N came from the precursor solution, and the amount of F decreased with increasing calcination temperature. Two sources of Si were identified. One was from the SiF62- ions, which were formed by a reaction between the treatment solution and quartz ...

The Effect of Calcination Temperature on the Surface Microstructure and Photocatalytic Activity of TiO2 Thin Films Prepared by Liquid Phase Deposition

ZnS nanostructures: From synthesis to applications

Role of B2O3 on the phase stability and long phosphorescence of SrAl2O4:Eu, Dy

Synthesis and photoluminescent properties of ZnS nanocrystals doped with copper and halogen

Direct precipitation of lead zirconate titanate by the hydrothermal method

Hydrothermal preparation of Ba(Ti,Zr)O3 fine powders

Alternate-current electroluminescent (ac EL) devices based on doped ZnS nanocrystals emitting blue, green, and orange-red colors are reported. ZnS nanocrystals doped with Cu+ – Al3+ and Cu+ – Al3+ – Mn2+ combinations were synthesized by wet chemical method at room temperature. The ZnS:Cu+, Al3+ nanocrystals show blue (462 nm) and green (530 nm) EL emissions depending upon the presence and absence of sulphur vacancies, respectively. The orange EL emission (590 nm) is realized from ZnS:Cu+, Al3+, Mn2+ nanoparticles by way of nonradiative energy transfer from AlZn – CuZn pairs to MnZn. The EL devices show low turn-on voltage of ~10 V ac @100 Hz. The mechanism of ac EL in ZnS nanocrystals has been explained wherein the excitation is attributed to the electric-field-assisted injection of electron-hole pairs from the surface regions into the interiors and their subsequent recombination therein causes emission.

/pdf/multicolor-electroluminescent-devices-using-doped-zns-2c8wyo253f.pdf

T.R.N. Kutty

Papers

Role of B2O3 on the phase stability and long phosphorescence of SrAl2O4:Eu, Dy

Synthesis and photoluminescent properties of ZnS nanocrystals doped with copper and halogen

Direct precipitation of lead zirconate titanate by the hydrothermal method

Hydrothermal preparation of Ba(Ti,Zr)O3 fine powders

Multicolor electroluminescent devices using doped ZnS nanocrystals