Grain (crystallites) size through modified Scherrer equation - 19

The purpose of the modified Scherrer equation is to provide a new approach to the kind of using Scherrer equation so that a least-squares technique can be applied to minimize the sources of errors. Modified Scherrer equation plots ln(β) against ln(1/cosθ) and obtains the intercept of a least-squares line regression, from which a single value of D is obtained through all of the available peaks. In this video, I have shown how to use the modified Scherrer equation.
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[@pabloescobarswife5298]

this helped me so much, thankyou very much kind nano world

[@egor1shko]

Thank you for this video and for your XRD course in general! Have you think to create a video with the first step of XRD-calculations, I am talking about instrument broadening, and how to work with it, what does it mean. Thank you!

[@shafiraqurrotaayuningtyas9636]

Really appreciate all of your video! It does indeed help me, thank you so much

[@nanoworld6122]

Glad it helped!

[@nur.syahirah.zakaria4635]

Your videos are very helpful and clear. Thank you so much !!

[@nanoworld6122]

Glad you like them!

[@PAULTHOMASMEE]

i appreciate all the videos. i am requesting to include more videos related to electrochemical studies (supercapacitor)

[@estifanoskassahun6362]

Hello... Nano Worlds...Ur best videos are really helping me on my study......Big thanks...and please go on....

[@nanoworld6122]

Thank You

[@OudSlayer]

Thank you for this video, it's really informative. I have a question, how can we refine the cell parameters using the least-square method ? Thank you in advance.

[@hamidghaithan9650]

You are great. Thank you very much

[@nanoworld6122]

Glad it helped

[@md.sydulislam4362]

Please sir make a video on How to calculate PORE SIZE, PORE DIAMETER from SEM images using ImageJ software.. Please!

[@torerotricking1]

Hey! I love your videos. They're so illustrative! I work with semiconductor nanoparticles. Would you know any way to remove the scattering in some cases in absorption spectroscopy when working with nanoparticles that have this phenomenon? Greetings:)

[@nanoworld6122]

Sorry, I'm not aware of any method to remove or reduce the scattering from the absorption spectra. If you are doing it for the bandgap energy estimation, then It will be better to use the Diffuse Reflactance Spectroscopy (DRS) instead of absorption spectroscopy.

[@torerotricking1]

@@nanoworld6122 it is not for bandgap energy estimation, it is just for absorbance when scattering is occurring.

[@alsosecretsecret8762]

Thanks for sharing, but as explaned in a previous video, both strain and crystallite size contribute to peak broadening, then why the effect of strain is ignored in the modified Scherrer equation?

[@thenmozhir9656]

Sir can you explain about vsm plot in origin software

[@abheepsitraturi3131]

thanks for this video, but in the derivation of the modified Scherrer equation the slope (m) is one, while when you are fitting the curve the slope (m) is 2.5. if you change the slope to one the intercept will change and ultimately your grain size. please explain this conflict.

[@jasiras.v.3698]

I also have the same doubt..Did you get the explanation for that ?

[@zanet248]

this formula is valid for sistems with 2 or more crsytal phases ?

[@learningofturkish7809]

thank you so much, please answer me, i have potassium feldspat XRD results, Can i use the same steps becaus peak more crowded.

[@nanoworld6122]

of course yes.

[@pengfeizhu7239]

I JUST wondering at the R^2 is not big

[@swapnasamala7817]

Can you please provide link for downloading origin software..??

[@ParameswaranPed22d008]

Modified scherrer i got 22nm and for WH plot I got 42nm (13th video). Which is the correct value of avg. grain size?

[@hayetmenasra5896]

Thank you so Much for this video, i have a question: Please how to plote the Spectre of accepted Ref.Pattern in origine?

[@learningofturkish7809]

can i ask you please, i have KFS peaks and it is more crowded, can you help me with that

[@nanoworld6122]

Check your email.

[@nanoworld6122]

How can i help you?

[@learningofturkish7809]

@@nanoworld6122 many thnx and i am appreciate it so much could you please look at the data that i sent it to ur email.

[@rohitnegi6192]

sir please add a video for band gap calculation and band alignment for semiconductor nanoparticles.

[@user-ds4pk1wl7o]

7:05 The peak positions of no.3 and no.4 are the same!!!! Are there any mistakes?? Thx:)

[@awadahmed3712]

Please sir make a video on How to detect the coating, doping, and functionalization of nanoparticles using characterization techniques.

[@nanoworld6122]

Noted, Thanks

[@sp6812]

Hey, I love your contents. I am looking for a software where I can plot xrd data. Basically I want to learn how to calculate the peaks and plot graphs. Also do you know any software where I can plot graphs. Can you provide your email

[@nanoworld6122]

Thanks for the comment, our email is, [e-mail]

[@jibrilahammad8751]

But the slope on your graph of experimental data is not 1 as you assumed in your theory! You didn't account for that in your actual calculation for D