Growth Aspect, Structural and Optical Properties of Unidirectional Growth of Potassium Hydrogen Maleate Single Crystal by Sankaranarayanan–Ramasamy (SR) Method

c. Amirtha Kumar; R. Mohan Kumar

Volume 5, Issue 1 , 2020, , Pages 28-31

  Third order nonlinear optical semi-organic potassium hydrogen maleate single crystal was grown by Sangaranarayanan-Ramasamy (SR) method. The formation of the bonds in the crystal was confirmed by FTIR analysis. Thermal properties were analyzed, and found that the grown crystal is thermally stable up ...  Read More

(Ni, Al) co-doping influence on structural and optical properties of ZnO nanoparticles synthesized via co precipitation method

P Swapna; S Venkatramana Reddy

Volume 3, Issue 9 , 2018, , Pages 536-539

  Pure and (Ni, Al) co-doped ZnO nanostructures are prepared lucratively by chemical co-precipitation process at room temperature by means of poly ethylene glycol (PEG) as stabilizing agent. Zinc acetate dehydrate and potassium hydroxide are used as preliminary materials. The synthesized samples are characterized ...  Read More

Fabrication and luminescence properties in Yb –Tb co-doped a-SiCO thin films

Loreleyn F Flores; Karem Y Tucto; Jorge A Guerra; Rolf Grieseler; Jan A Töfflinger; Andres Osvet; Miroslaw Batentschuk; Roland Weingärtner

Volume 3, Issue 6 , 2018, , Pages 372-376

  Amorphous silicon oxycarbide (a-SiCxOy) single doped with Yb3+ and co-doped with the couple Tb3+ - Yb3+ thin films were grown on crystalline silicon substrates by rf magnetron sputtering. The elemental composition in at. % is determined by energy dispersive spectroscopy and fourier transform infrared ...  Read More

Enhancement of luminescence properties of Mn2+ substituted dysprosium doped Zinc sulfide nanophosphor

S. Rajesh; K. Thyagarajan; Vasudeva Reddy Minnam Reddy

Volume 3, Issue 6 , 2018, , Pages 419-424

  Zinc Sulfide nanophosphor (ZnS) nanophosphor doped with 2 mol % Dysprosium (Dy) and co-doped with (2 – 6) mol % Manganese (Mn) was successfully prepared by cost-effective chemical co-precipitation method using polyvinylpyrrolidone (PVP) as the capping agent. The effects of dopant and co-dopant ...  Read More

Thickness mod ulated structural and photo-luminescence properties of magnetron sputtered nanocrystalline SiC ultrathin films

Narendra Singh; Davinder Kaur

Volume 2, Issue 11 , 2017, , Pages 725-728

  Ultrathin silicon carbide (SiC) films were grown on p type Si (100) substrate by RF magnetron sputtering at constant substrate temperature of 7000C for investigating thickness dependence of structural and photoluminescence properties. The structural and Photoluminescence properties were measured by X-ray ...  Read More

Optical properties of post-annealed zinc oxide (ZnO) thin films synthesized by pulsed laser deposition (PLD)

Bhawana Joshi; Santanu Ghosh; Pankaj Srivastava

Volume 2, Issue 9 , 2017, , Pages 581-586

  In the present work, ZnO thin films deposited by pulsed laser deposition (PLD) technique have been characterized structurally and optically after post-deposition annealing. As-deposited thin films were annealed in the ambient atmosphere for different annealing temperatures of 2000C, 4000C, 6000C and ...  Read More

Synthesis and characterization of Mn composition effect on CdSe thin films

Sarika Singh; A.K. Shrivastava; Swati Tapdiya

Volume 2, Issue 6 , 2017, , Pages 367-370

  Cadmium Selenide (CdSe) doped with (Mn) Manganese Chloride grown, on commercial glass substrate usingChemical Bath Deposition Method. Growth time was kept at 1-2 hours. Magnese Chloride (Mncl2) was used for dopant. CdMnSe films so obtained were characterized using X-Ray Diffraction, Scanning Electron ...  Read More

Tuning the emission of Poly (9,9-dioctylflorenyl-2,7-diyl) using one dimensional photonic band gap

Nidhi Gupta; Rakhi Grover; Dalip S. Mehta; Kanchan Saxena

Volume 2, Issue 3 , 2017, , Pages 194-197

  Here we present fabrication of one dimensional photonic band gap structure (1D-PBG) based on periodic layers of silver and magnesium fluoride (MgF2) for tuning the emission of polyfluorene derivative, Poly(9,9-dioctylfluorenyl-2,7-diyl) (PFO). Transmittance measurements were used to characterize the ...  Read More

Effect of gadolinium inclusion on the raman spectra and photoluminescence of TiO2 nanoparticles

J. Dhanalakshmi; D. Pathinettam Padiyan

Volume 1, Issue 2 , 2016, , Pages 195-199

  GdxTi1-xO2 nanocomposites with x=0.00, 0.02, 0.04, 0.06, 0.08 & 0.10 were prepared through sol-gel method.  The samples were characterized using X-ray diffraction (XRD), diffuse reflectance spectroscopy (DRS), High resolution scanning electron microscope (HR-SEM), Raman spectroscopy and photoluminescence ...  Read More