Rishabh Sharma

14 Questions 21 Answers 0 Followers

Questions related from Rishabh Sharma

How should a powder sample be scanned for reitveld refinement on later stage?

Does scan rate has any impact? what other parameters to consider while performing xrd ?

13 September 2018 2,358 2 View

What parameters are used to check accuracy of a refined pattern using rietveld refinement?What are their acceptable values?

I have basic knowledge (in general). But I still want opinion of other researchers and good sources to refer. TIA

17 August 2018 3,457 5 View

What can be suitable solvent to check UV-Vis absorbtion and photoluminescence spectra of Yittrium Aluminium Garnet (YAG) nanoparticles?

I have tried ethanol but its cutt-off wavelength 205 nm is interfering. Tried distilled water but yag nanoparticles are not soluble in it. Kindly suggest any other solvent.

24 June 2018 1,907 2 View

What is the lambda max (absorbance peak) in UV region for the following samples?

I performed UV-Vis spectroscopy for following samples.What is the right method to find lambda max

20 June 2018 3,409 3 View

What is the lambda max (absorbance peak) in UV region for the following samples?

I performed UV-Vis spectroscopy for following samples.What is the right method to find lambda max

20 June 2018 8,464 10 View

Which is the easiest way to determine crystallite size,crystallinity of cellulose 2 and its content %age( alpha, beta, or gama)?

Please provide me with jcpds cards for cellulose 2 too.What is the difference between cellulose nanofibrils and nanocrystals?

08 June 2018 1,796 7 View

What value of FWHM should I use to calculate crystallite size and strain by Scherrer formula in below mentioned situation?

I am comparing crystallite size and strain using Scherrer and Williamson hall method.But I have doubt in mind whether the value of FWHM I am using is correct. The Bragg peak width is a...

06 June 2018 7,096 12 View

I have made paper out of cellulose (1-2mm thick). I am interested to have look at its fiber structure using SEM,TEM. Which one will be better ?

Cellulose is functionalized by rare earth oxide nanoparticles. I also want to look at distribution of rare earth oxide nanopartilces inside paper. How should the sample be prepared?Any...

05 June 2018 8,083 4 View

What is X-ray density?How to calculate x-ray density of nanoparticles?

please give papers/ references, if possible.

02 June 2018 7,875 6 View

How can I calculate Energy Band gap for YAG nanoparticles from UV Vis absorbance spectroscopy results?

Please share the source of method for reference.

31 May 2018 2,660 3 View

What are the peaks observed in UV Vis spectra of pure YAG nanocrystals (Yittrium Aluminium Garnet)?

Which solvent should I use for testing?Study of UV vis and fluorescence characteristic of YAG.

22 May 2018 2,334 4 View

Has anyone conducted study on luminescencse characrteristics for YAG nanoycrystals (UV Vis and Fluorescence spectroscopy) who can help me ?

I am looking for research papers/data regarding above mentioned tests for YAG and reason or mechanism particular for these peaks. UV VIS result shows single peak at 205 nm. Fluorescence...

17 May 2018 2,262 8 View

Can anyone confirm my xrd results for cellulose extracted from bagasse ?

1) I have attached my xrd result .Please provide JCPDS Card for same if avilable. 2) Peaks(2theta) observed are 20.12, 19.7, 12.3, 21.96 .(As per my findings (Luminescent cellulose fibers...

17 April 2018 7,366 2 View

Looking For JCPDS Card For Agar Agar?

any paper references will be helpful too.

01 January 1970 5,940 4 View