venkatesha babu kr rathnaiah setty

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Questions related from venkatesha babu kr rathnaiah setty

How the Band Gap energy is corrected with dopant concentration in the host?

With increase of concentration of the dopant in the host,...the Band Gap energy of the nanostructure is increasing..may i know the reason.. with the increase in the concentration of the...

12 November 2017 6,468 3 View

May i know the fall of refractive index (or increase of of bandgap energy) with the increase of dopant concentration of Nano structures???

why refractive index decreases and band gap energy increases with the dopant concentration of nano structure...Plz give the reason for same...

26 May 2017 7,657 3 View

Tansition states for Ce3+ doped TiO2

TiO2 is doped with Ce3+. the emission wavelengths are found to be 489, 542,653,705,730nm. could any one give the transitions states pertaining to the mentioned wavelengths...(excitation...

26 May 2017 6,270 0 View

How to find the valence of urea?

In the combustion synthesis of nano materials urea is used as fuel. The stoichiometry relations demands to find the valence of urea because F/O=1. Hence i request kindly guide me to find the urea...

06 June 2016 1,203 3 View

How do I prepare TiO2?

I am purely nuclear physics teacher...I need more chemistry to prepare the Nano materials. Kindly help me to How to prepare the TiO2 nano material using the main precursor as Titanium(IV)...

15 December 2015 3,045 7 View

How do I prepare TiO2 nanoparticles?

How can I obtain TiO2 How can I obtain TiO2 nano particles from green extract?I am interested to synthesize TiO2 nano particles from green extract. I request you to give the suggestions,...

15 December 2015 1,679 2 View

How can I calculate the concentration for dopant with another material?

I need to calculate the concentration for dopant with another material. Can anyone help me out to learn the calculations? How can I calculate the 0.1mol% of Europium Nitrate with TiO2 material?...

12 December 2015 5,486 20 View

What is the best solvent for nano TiO2 powder for UV visible spectrophotometer?

I need to study the Eg for TiO2 using UV visible spectrophotometer. Kindly may I know the best solvent for nanoTiO2 powder? or necessary of sonification if not a good solvent? Or dispersion of the...

13 January 2015 7,259 6 View

Why is there no peaks in my FTIR spectra for Tio2 nanopowder?

I have prepared the TiO2 nanopowder by sol-gel method. In the FTIR spectra (% of transmission versus wavenumber) I was not able to get the peaks. Do you know what might be the reason or do you...

13 January 2015 7,334 2 View

What characterisation tools are required to analyse the nanomaterial?

There are various ways to synthesis the nano materials. In order to characterise the materials we go for XRD,SEM,TEM,FTIR,UV etc. my question is: is there any reference book to understand and...

31 December 2014 3,958 16 View