Pankaj Singh Chauhan

5 Questions 12 Answers 0 Followers

Questions related from Pankaj Singh Chauhan

Is it normal to obtain a peak at 433 nm positionin PL spectra of ZnO? Usually the reported PL analysis shows peak near 500 nm?

I have synthesized ZnO nanorods through solvothermal method. But PL spectra is not matching with reported work. The peak which is near 500 nm in reported work, is coming at 433 nm in my sample.

05 April 2018 8,907 4 View

What does Zn2p5/2 and Zn2p3/2 signifies? and what does 5/2 and 3/2 represents?

In XPS of ZnO, I obtained two peaks corresponding toZn2p5/2 and Zn2p3/2. I am trying to Understand their significance and difference between them.

03 April 2018 7,483 4 View

How to stop metal oxide semiconducting (MOS) materials from leaching color in DI ? OR how to remove ions responsible for color leaching in DI+MOS sol?

Some of the MOS's have chemichromism or thermochromism property and in DI water solution they leach color which hinders the optical measurement techniques.

20 January 2018 3,589 0 View

How the red -shift or blue-shift in absorption spectra obtained from UV-Vis of a composite material affects the Photocatalytic performance?

Suppose a nanocomposite of metal oxide with graphene or any other dopant creates a shift in UV-Vis absorption spectra, hence changing the band gap value (increase/decrease). which one is better...

12 January 2018 7,305 8 View

How to prove that a gas has Physisorbed or chemisorbed on a metal oxide surface without using BET method?

Assume the gas is some inert gas and the substrate is V2O5 nanostructure.

12 April 2017 730 9 View