15 Questions 29 Answers 0 Followers
Questions related from Abdelmounaim Chetoui
Dear all, When we discuss the XRD result of a given material, we talk often about the crystal reorientation effect. This situation takes place when we observe a decrease of peak intensity after...
02 February 2019 2,489 3 View
Dear all, In order to calculate the band gap of a given semiconductor material we use the following Tauc formula: (ahv)=A(hv-Eg)^n. We define A as a constant in all the papers. The question is...
01 January 2019 9,560 7 View
Dear all, How can the particle's size varies with the average crystallite size ? Best regards, A. CHETOUI
12 December 2018 3,859 0 View
Dear all, One can expand the expression (x+y)^1/2 ? Thanks all of you, Abdelmounaim
01 January 2018 4,248 16 View
Hello everyone, What does it mean "thermodynamic stability" of a compound ?
05 May 2017 10,153 4 View
Dear scientific community, If we circulated an electric cuurent in a semiconductor, on how deep this latter flows in the material ? Best Refards, Abdelmounaim
09 September 2016 8,513 1 View
Hello scientific community, one could explain in brief discription the Rietveld refinment method ? Best regards, Abdelmounaim
08 August 2016 7,418 1 View
Hello scientific community, I have a question about the gas sensing mechanism by n and p-type metal oxide semiconductors. It is well known that the gas sensing mechanism is in most cases related...
07 July 2016 1,136 11 View
Hello scientific community, I would like to ask you a question concerning the adsorption. one could give a clear explanation about the difference between " the weak chimisorption" and...
07 July 2016 6,329 1 View
Hello Scientific community; We heared about the bulk doping. what's the diffrence between the bulk doping and surface doping ?
05 May 2016 4,455 2 View
Hello scientific community, can someone provide me with papers concenrning the effects of doping on CuO gas sensing properties ? thank you a lot
04 April 2016 3,756 4 View
what did we mean by a soft acidic nature of a chemical componenet ?
03 March 2016 7,705 2 View
can i get a software processing SEM migrographs ?
03 March 2016 788 9 View
Hello
02 February 2016 7,236 3 View
Dear scientific community, Why we say that CO2 has an acidic nature ?
01 January 1970 9,706 6 View
