Muhammad Umair Ali

4 Questions 17 Answers 0 Followers

Questions related from Muhammad Umair Ali

Could anyone please explain me the term "Broken Inversion Symmetry" in monolayer MoS2?

I am trying to understand the crystal structure of Molybdenum Disulfide (MoS2). In most of papers, people have used the term "Broken Inversion Symmetry" which I could not understand yet. It would...

20 January 2017 1,824 5 View

What are possible reasons of decrease in intensity of SnO2 stretching mode (in FTIR spectra) by increasing content of Graphene Nanoplatelets?

I have fabricated Graphene-SnO2 nanocomposites. In FTIR spectra of prepared samples, a peak at around 658 cm-1 referring to Sn-O-Sn stretching mode is found in case of undoped SnO2 sample which...

26 August 2015 8,858 4 View

Can anybody please explain to me the effect of difference in ionic and atomic radii of dopant and host material on crystallinity and other factors?

We have synthesized undoped and Fe doped La2O3 nanostrcutures. The crystallnity of La2O3 is increased by Fe doping. We also synthesized undoped and Fe doped SnO2 nanostructures. In this case,...

24 November 2014 7,673 8 View

Can anybody please suggest me some simple chemical methods for fabrication of Graphene-SnO2 Nanocomposites?

I am working on fabrication of Graphene-SnO2 Nanocomposites for applications in supercapacitors. We have KNG-150 Graphene nanoplatelets purchased from Knano, China. SnCl4.5H2O is available in our...

24 October 2014 580 7 View