Hi sir I done my project in nano particles (copper sulphate) and I gave my sample outsource for XRD and FTIR. They gave me a graph report of XRD didn't provided any text form data Now how can I calculate the crystalline size in origin How can I extract the data Pls help me
For crystallite size calculation, please watch my videos in the *characterization techniques* playlist. You need to use Scherrer's equation to find the crystallite size..... There is also good discussion on the *community* tab in my channel Also, see the description of the video, where I have provided very good discussion
I have already explained in the video and I also kept the text in the description, BUT you don't read it 😒 How the XRD peaks broaden as the size of the crystallite or grain or particles getting smaller? As the size of the material decreases from bulk (micro meter size) to nano (1-100 nm), the XRD peak starts broadening. This broadening is just like the amorphous materials. The x-rays realized the nanomaterials are just like the amorphous materials. In such a scenario, the XRD technique becomes difficult to analyze the nanomaterials of small size as the scattering of x-rays in many directions. The XRD technique becomes difficult to analyze the sample with crystallite size / particle size below than 5 nm as the peaks broad and low signal to noise ratio. Importance: This broadening of peaks has a significant importance in nanomaterials characterizations. For instance, if TEM shows the particle size ~ 10 nm BUT the XRD of the same sample shows SHARP peaks, then there is discrepancy. It means that the majority of the particles in the sample are not in the ~10 nm range, BUT rather large in size.
Sir your video is full of informative for us (researchers)... Please make one video on "Flourescence decay time curves" or decay time curves graph... I'm facing issue to understand the Photoluminescence decay time graph
Hi sir I done my project in nano particles (copper sulphate) and I gave my sample outsource for XRD and FTIR. They gave me a graph report of XRD didn't provided any text form data
Now how can I calculate the crystalline size in origin
How can I extract the data
Pls help me
For crystallite size calculation, please watch my videos in the *characterization techniques* playlist.
You need to use Scherrer's equation to find the crystallite size.....
There is also good discussion on the *community* tab in my channel
Also, see the description of the video, where I have provided very good discussion
sir will you pls explain why the broadening in peaks happens for nano material
I have already explained in the video and I also kept the text in the description, BUT you don't read it 😒
How the XRD peaks broaden as the size of the crystallite or grain or particles getting smaller?
As the size of the material decreases from bulk (micro meter size) to nano (1-100 nm), the XRD peak starts broadening. This broadening is just like the amorphous materials. The x-rays realized the nanomaterials are just like the amorphous materials. In such a scenario, the XRD technique becomes difficult to analyze the nanomaterials of small size as the scattering of x-rays in many directions.
The XRD technique becomes difficult to analyze the sample with crystallite size / particle size below than 5 nm as the peaks broad and low signal to noise ratio.
Importance:
This broadening of peaks has a significant importance in nanomaterials characterizations. For instance, if TEM shows the particle size ~ 10 nm BUT the XRD of the same sample shows SHARP peaks, then there is discrepancy.
It means that the majority of the particles in the sample are not in the ~10 nm range, BUT rather large in size.
Sir explain simply how to calculate crystalize size using debye scheers formula sir
Noted with thanks 😊
Sir want to contact with you, need a little help
How can i contact with you
Thanks for your comment. I will respond to the best of my capability here in the comment section.
Sir your video is full of informative for us (researchers)...
Please make one video on
"Flourescence decay time curves" or decay time curves graph... I'm facing issue to understand the Photoluminescence decay time graph
Okay, I will try to make it. Many thanks