In this paper, we presented a comparison of Photoluminescence (PL) studies Gd2O3 phosphor prepared by two synthesis methods, high temperature (1400 °C) solid state reaction and low combustion synthesis. Both these methods synthesized successfully. Structural properties were investigated X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR). Scanning electron microscope (SEM), Energy dispersive analysis (EDX), Transmission microscopy (TEM). The results obtained for both...

Nanostructures, crystalline Zinc oxide powder were synthesized by mixing chloride (0.04M) and sodium hydroxide (0.08M) using chemical route method. 0.001M molar concentrations of TEA (Tri ethanolamine) in aqueous solution used to the growing reaction solution. The samples are annealed at 190 °C. experimental results indicate a successful growth solid form which is not observed ever before. XRD, SEM, TEM PL performed characterize morphology, optical nature samples. some Rod particle like...

This paper reports the thermoluminescence properties of Er3+ doped gadolinium oxide nanophosphor. The phosphor is prepared by high temperature solid state reaction method. method suitable for large scale production. Starting materials used sample preparation were Gd2O3, Er2O3 (0.5–2.5 mol%) and fixed concentration boric acid using as a flux. samples characterized X-ray diffraction technique particle size calculated Scherer's formula. surface morphology determined scanning electron...

Rapid industrialisation and resulting industrial solid waste from power plants integrated iron steel industries, have imposed an enormous environmental pressure on water resources of Chhattisgarh, a state in Central India. Rural population living nearby the study area is mainly depended available surface form lakes or pond their vicinity. Therefore it necessary to look after through leachate pollution caused by dumping disposal waste. In present study, ten samples each for pre monsoon post...

Europium doped di-strontium magnesium di-silicate phosphor namely (Sr2MgSi2O7:Eu3+) was prepared by the traditional high temperature solid state reaction method. The phase structure of sintered akermanite type which belongs to tetragonal crystallography with space group P42¯1m, this is a member melilite and forms layered compound. EDX FTIR spectra confirm present elements in Sr2MgSi2O7:Eu3+ phosphor. Photoluminescence measurements showed that exhibited strong emission peak good intensity,...

Zinc oxide thin films were deposited on glass slide from aqueous solution of ZnCl2 and NaOH by chemical bath deposition method. The various thicknesses have been obtained varying the concentration TEA (1 M−0.01 M). Optical properties, surface morphology particle size film studied U.V spectrophotometer (Varian) SEM XRD. optical band gap ZnO was found in range 2.59–3.57 ev. constant is such as refractive index, extinction coefficient, real imaginary parts dielectric evaluated reflectance,...

The ZrO2 phosphor doped with Eu3+ was synthesized by solid state reaction method which is suitable for large scale production, and high temperature synthesis method. prepared nanoparticles of characterized X-ray diffraction technique (XRD) Structural analysis field emission gun scanning electron microscopy (FEGSEM)) morphological details. optical behavior the determined photoluminescence (PL) spectra recorded in room temperature. PL excitation found at 311 nm range 400–650 nm.

Timely identification of insects and their management play a significant role in sustainable agriculture development. The proposed hybrid model integrates weighted multipath convolutional neural network generative adversarial to identify efficiently. To address the shortcomings single-path networks, this novel takes input from numerous iterations same image learn more specific features. avoid redundancy produced due multipath, weights have been assigned each path. For Xie2 dataset, shows...

Gd 2 O 3 :Yb 3+ phosphor has been synthesized by the solid state reaction method with boric acid used as a flux. The resulting was characterized X-ray diffraction (XRD) technique, Fourier transmission infrared spectroscopy (FTIR), scanning electron microscope (SEM) and (TEM), photoluminescence thermoluminescence. results of XRD show that obtained cubic structure. average crystallite sizes could be calculated 42.9 nm, confirmed TEM results. study suggested Yb doped phosphors are potential...

An Er(3+) -doped phosphor of Gd2O3(Gd2O3:Er(3+)) was prepared using a conventional solid-state reaction method. The structure and particle size were determined from X-ray powder diffraction measurements. average the in between 20 50 nm. further confirmed by transmission electron microscopy (TEM) analysis. Luminescence spectra recorded under excitation wavelengths 275, 380, 515 980 visible upconversion downconversion luminescence Gd2O3:Er(3+) investigated as function ion concentration....

Er3+/Yb3+-codoped Gd2O3 phosphors have been synthesized by combustion method and solid-state reaction method. The prepared were compared for their structural, morphological, optical properties. phosphor is of monoclinic phase, whereas the formed cubic phase. structural properties carried out PXRD analysis. crystallinity morphology evaluated SEM TEM analysis, parameters are in good relation to results. All both methods found be nanometer range. particle size higher upconversion spectra under...

The present paper reports the synthesis and characterization of Ti doped ZrO2 nanophosphors. effects variable concentration titanium on thermoluminescence (TL) behaviour are studied. samples were prepared by combustion a technique which is suitable for less time taking techniques also large scale production nano phosphors. starting material used sample preparation Zr(NO3)3 Ti(NO3)3 urea as fuel. was characterized X-ray diffraction (XRD) with (0.05–0.5 mol%) there no any phase change found...