How to Get the Mott-Schottky Graph Plot in Origin

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#Mott-Schottky #ElectrochemicalWorkstation
In this video you will come to know how to get the Mott-Schottky plot in Origin software from the raw data file obtained from the CH Instruments Electrochemical Workstation (CHI 660E), using Excel.
Here, the formula which is used to calculate the 1/Cs2 value from the raw data has also been told. If you use the formula please do cite the article, 'A. Sarkar et al., Phys. Chem. Chem. Phys. 2016, 18, 26900-26912.'
For the tutorial video on the Mott-Schottky measurement technique please click this link. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-SXhvDR9PiPE.html
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26 окт 2017

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Комментарии : 59

@Bridging-Gaps 5 лет назад

Excellent demonstration Ayan da, it's really helpful. I just want to know few things. First of all what should I do first? Impedance AC or impedance potential in chi instruments? What information do we get from impedance AC and how to use it while doing impedance potential? How to decide what potential is suitable for my material while running impedance potential? Finally, how to calculate the conduction band potential from Mott Schottky diagram? Please answer my questions, I am in the middle of my paper and I need to calculate the valence band and conduction band potential of my CuO nanocrystal.

@AyanSarkar1 5 лет назад

Thank you very much for your comment. Hope, you've got your answer over our phone conversation. If you have still some quires then you may send me message again. I'll try to answer if it's not beyond my reach.

@nouasriafatimazohra3910 4 года назад

Me too i want to know the answer pplz

@NaveedAhmadTWVlog 3 года назад

Hello sir, Very informative, thank you for sharing... I want to ask something, This instrument is different from the instrument by which we calculate EIS and Photocurrent density?? Please do answer? I am waiting

@AyanSarkar1 3 года назад

Here, I used the data obtained from a CH Instrument for analysis.

@mdabdussalamshaik9487 2 года назад

Hello sir, I am really thankful to u after seeing this video. I have been searching this from last few days and finally I got it. Although u explained everything explicitly, still I am facing some issues while plotting Mott Schottkey. There are few question below that I want u to entertain: 1) how did u get the potential column from empedence data, rather it was supposed to give frequency column? 2) If I run CV experiment to get the potential column, still I wont be able to plot MS as CV has not given the same no data as empedence required? 3) do I need to run any other experiment before EIS? I would like to request you to please make me clear.

@AyanSarkar1 2 года назад

I used the data obtained from a CHI Electrochemical Workstation. Which instrument are you using?

@mdabdussalamshaik9487 2 года назад

@@AyanSarkar1 I am also using the same CHI electrochemical workstation

@AyanSarkar1 2 года назад

@@mdabdussalamshaik9487 I suggest you to watch this video attentively. That might clear your doubts. Moreover, you should watch the video on Mott-Schottky measurement, available on my channel. It will help to clear your doubts, I reckon.

@devendrasanke8083 4 года назад

Thank you sir for such great information . Keep sharing this type of knowledge through your videos

@AyanSarkar1 4 года назад

Thank you, Devendra, for your appreciation.

@minaa9050 2 года назад

Thank you Sir for the informative video. V_NHEorRHE = V_Ag/AgCl + 0.059*pH + E0_Ag/AgCl (0.197 V for saturated aq. KCl). For this conversion how do we get V_Ag/AgCl and ph values. Will they be provided along with the raw data Sir

@AyanSarkar1 2 года назад

Generally, in a three-electrode setup, the potential is measured against the reference electrode. If you are using an Ag/AgCl reference electrode, then the potential will be measured vs. Ag/AgCl. You have to measure the pH value of the electrolyte separately using a pH meter.

@minaa9050 2 года назад

@@AyanSarkar1 Thank you Sir

@VishakhaTakhar Год назад

in the formula it is 1/Cs2 but while plotting you didnot take inverse of Cs2. is it correct?

@shakirhussain3177 4 месяца назад

can you share link from which i can see how to perform Mott Schottky test by using CH instrument?

@AyanSarkar1 4 месяца назад

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-SXhvDR9PiPE.htmlsi=dMsrtgIzQoebfIeG

@mirferdouschowdhury9947 3 года назад

This is very useful content, Thanks for making this video. But, I would like to know- how to understand is it a p-type or n-type ?

@AyanSarkar1 3 года назад

p-type semiconductors give a negative slope, while the n-type semiconductors give a positive slope at the depletion region.

@angnguyenhai8071 2 года назад

Thank you Sir for your video ! It has explained some troubles that I met before. But would you mind telling me some problems I want to understand ? I wonder if the linear frequency value "5000" is a fix value or it depends on the system ? And how could we know that value ? Is it on the raw data files ? Thanks a lot for reading my question !

@AyanSarkar1 2 года назад

You have to set the frequency while you perform the experiment. Please note that the frequency should atleast be 1 kHz.

@PhongPhamKhanh-k8t 7 месяцев назад

@@AyanSarkar1 what the matter if I choose the frequency is 100Hz?

@AyanSarkar1 7 месяцев назад

@@PhongPhamKhanh-k8t You can try and check what you get.

@손오공-r6e 3 года назад

The video is really good. But what about the doping density profile in MS analysis??

@AyanSarkar1 3 года назад

It can be obtained using the pertinent formula.

@SBanerjee857 3 года назад

Thankyou so much sir. Much needed information

@AyanSarkar1 3 года назад

Thank you for your appreciation. Please subscribe.

@PhongPhamKhanh-k8t 7 месяцев назад

Why on the ecxel your fomular is (1/C^2)/10^9 but the unit is F^-2*10^9.

@AyanSarkar1 7 месяцев назад

Did you watch the full video?

@jagadeeshsriramoju 6 лет назад

very helpful sir. please explain how to obtain the values of charge carrier density, valance band and conduction band values, donar density and acceptor density values.

@AyanSarkar1 6 лет назад

To know how to obtain the carrier density, you may read the following papers: Phys. Chem. Chem. Phys.,2016, 18, 26900-26912. ACS Sustainable Chem.Eng., 2016, 4, 5693-5702. Although, the position of valence band can be estimated from valence band XPS, quite precisely, still you may use the concept of the flat band potential to determine either valence (for p-type) or conduction band (n-type) edges. Apart from the aforementioned papers, I'll request you to read the following papers. J. Phys. Chem. C, 2017, 121, 25705-25717 and Nanotechnology, 2017, 28, 325401.

@dr.govardhanababubodedla1208 3 года назад

Thank you very much for sharing your knowledge.

@AyanSarkar1 3 года назад

Thanks for your compliment.

@sohinichakraborty2118 6 лет назад

Hi we are using a CHI 608E. When we are doing the Mott-Schottky analysis I am getting some parameters like Slp, Ufb, etc. Can you help me interpret these?

@AyanSarkar1 6 лет назад

Actually, Slp means slope, Ufb means the flat band potential. Please watch the video on the Mott-Schottky measurement in my channel (ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-SXhvDR9PiPE.html ). However, I would suggest you not to use those values for determining carrier density as well as the flat band potential. The values must be found by yourself later. Please don't forget to subscribe this channel as you can understand it is really difficult for channels like this to acquire subscribers.

@sohinichakraborty2118 6 лет назад

Ayan Sarkar thank you so much.

@sohinichakraborty2118 6 лет назад

And there was another parameter called the Cor. What would that be?

@AyanSarkar1 6 лет назад

Cor may be the correlation coefficient, which probably signifies the accuracy of fitting with the experimental results. I hope that you must have seen the R^2 value during the fitting of your experimental data. Again, please don't forget to subscribe to my channel. En passant, may I know about the area of your current research?

@sohinichakraborty2118 6 лет назад

I have subscribed to the channel already. My area of research is in polymer chemistry wherein this is just one application we are looking at.

@piyalichatterjee9077 6 лет назад

very grateful for the demonstration. thank you sir!

@AyanSarkar1 6 лет назад

Thanks for your appreciation. Please do subscribe my channel.

@bhagyashrikamble1085 4 года назад

sir plz share video on tafel slope.. how to plot tafel curve and what information we get through slope

@AyanSarkar1 4 года назад

Although I have not used Tafel plot much, I shall try.

@chandrasekargovindasamy6111 4 года назад

thank you so much. Can you show me how to calculate valance band and conduction band energy level

@AyanSarkar1 4 года назад

For n-type semiconductors, generally, the flat band potential represents the conduction band edge. However, for p-type semiconductors, it is said that the valence band edge is positioned 0.1-0.2 eV below the flat band.

@mdsaifurrahman5376 4 года назад

How to measure the charge carrier number from the EIS data

@AyanSarkar1 4 года назад

Sorry! I don't have the idea. Howver, if you do CV at different scan rates then the number of electrons involved in a partcular redox reaction can be found.

@mdsaifurrahman5376 4 года назад

@@AyanSarkar1 how do you calculate the number of electrons from the CV data

@AyanSarkar1 4 года назад

@@mdsaifurrahman5376 You may check this paper: doi.org/10.1016/j.matpr.2017.11.016

@shwethabhat755 6 лет назад

Very helpful! Thank you.

@AyanSarkar1 6 лет назад

Thanks for your appreciation. Please do subscribe the channel.

@nogamenolife1020 2 года назад

thank you thank you so much for your great information, it was so helpful I wish you a more success, but I couldn't see the formula Can you send it for me please and all the formulas that you wrote and it used in this video thank you so much ☺️

@AyanSarkar1 2 года назад

Please read the description of the video.