Neharana Rana

11 Questions 20 Answers 0 Followers

Questions related from Neharana Rana

Is it possible to have higher optical band gap in Photoluminescence spectroscopy then in UV- Vis spectroscopy?

Higher band gap in PL spectra then the UV visible spectroscopy calculated band gap

09 September 2014 10,020 4 View

Wurtzite crystal structure?

"Wurtzite is the name given to the mineral ZnS. It has a hexagonal close packed array of S and the Zn(II) sit in tetrahedral (1/2 occupied) sites in the lattice" As the size of S2- ion is 184pm...

12 December 2013 9,256 3 View

Could someone advise if it is possible to dope ZnO with metal on Zn (74pm ionic radius) with metal like Ag, Cu, Yttrium like elements?

Which have larger ionic radius than Z? I have used citric acid and metal nitrate (1:1molar ratio) in water for synthesis and final heating at 600 C. My XRD trend shows the clear phase of y2o3 as...

12 December 2013 828 2 View

Is it possible to calculate the band gap of Al2o3 by tauc plot?

I want to find the band gap of Al2O3. Is it possible with UV-vis study?

11 November 2013 6,994 2 View

Can anyone explain the reason of decrease in lattice constant of ZnO with yttrium doping?

I have doped ZnO with yttrium by gel combustion method using citric acid as a fuel in the XRD data I am not getting any impurity peak of Y2O3 for 1% doping of Y but still the lattice parametters...

10 October 2013 8,996 4 View

Is "Pechini method" specific to metal nitrate only?

Can this method be applied with metal salts of sulfate or chloride or acetate?

08 August 2013 7,087 3 View

Solgel spin coating for porous free ZnO thin film

I am trying to deposite sol gel ZnO thin film on conducting substrate by using chemical such as Zincactetdihydrate(0.5M), 2methoxyethanol and Monoethanol amine(1:1) with spin coating parameters...

07 July 2013 8,778 10 View

Does anyone know how and from where I can get this software?

POWDMULT: an interactive powder diffraction data interpretation and indexing programmed version 2.1,” School of Physical Sciences, Flinder University of South Australia Bradford Park, SA, and...

05 May 2013 210 3 View

Is it ok to find the lattice parameters of the thin film by using Powder X software?

Lattice parameters by using Powder X software.

04 April 2013 6,502 18 View

Can anyone please explain how we can calculate the refractive index and thin film thickness using the UV spectroscopy data that I have attached?

Refractive index and thickness of film.

04 April 2013 8,470 12 View

How to make the contacts for dielectric measurements of thin film ?

If I am depositing my material on ITO glass then is it correct to make one contact on ito/ glass and second one on the film whose dielctric constant to be measured

04 April 2013 6,624 14 View