12 December 2014 1 1K Report

Is there any formula to calculate manually FWHM? If it is so please give me the formula.

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Why is gravity taken as 10 m/s^2 while gravity is changing at some places like equator where gravity is less?

Weight depends on change in gravity while mass is a constant. so our weight decreases when we r at high altitudes. so it is is clear from this that gravity is changing . so how do people accept...

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How r black holes formed ? How did the radiation from two black holes colliding in universe had an effect on earth on 2015?

What is the reason behind black holes for absorbing and emitting everything that goes by their way?

06 July 2017 5,324 3 View

Why have I got broadened peaks for my XRD graph?

I have slightly sharp peaks. Can anyone tell me from my graph whether my particles are nanoparticles or of amorphous nature? I have attached my file herewith. Some say that that my particles are...

11 December 2014 3,615 20 View

What is the suitable dispersing liquid for cds and cdse?

We have added cadmium chloride, sodium sulphide, diethylene tri amine.

11 December 2014 4,421 2 View

What is the interpretation if we get a step like absorption in UV-Visible Spectroscopy?

I got so many peaks and it also increases what is the interpretation for it.

11 December 2014 8,509 16 View

What will be the difference in band gap value for nanoparticle from its bulk material?

I am getting  band gap 1eV greater than that of bulk material. Whether it is correct or not? What range should I get for nanoparticle?

09 October 2014 1,092 6 View

How can I calculate the size of nanoparticles if they are not spherical?

I am getting rod shape and wire shape nanoparticles. Sherrer formula is applicable only for spherical particles. So how can I calculate the size of the particle?.

09 October 2014 7,080 14 View

How can I calculate the volume of hexagonal structured nano particles?

From XRD data the nano particle structure is hexagonal. How can I calculate a,c and volume if my two theta value is slightly deviated from standard value?

09 October 2014 9,993 9 View

How can I find out whether a synthesised material is nano or not?

The XRD results show the size of the particle is 5 nm. But TEM results show that the particle size range from 5-100 nm. How can I sure that the material is nano?

05 June 2014 936 28 View

What type of peak should I get for nanoquantum dots in XRD graph?

In XRD patterns around 10 peaks are present for the sample 1. Also, around 6 peaks are present for the sample 3. Also only one broad peak is present for the sample 2. In addition, XRD patterns for...

05 June 2014 3,070 5 View

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