Fayroz A Sabah

7 Questions 34 Answers 0 Followers

Questions related from Fayroz A Sabah

What is the difference between the charge transport in thin film and in nano-particles?

Dear colleagues I would like to ask about the charge transport between carriers in thin film and in nano-particles, what is the difference between them? Would you please provide me with the theory...

09 October 2017 3,253 3 View

What is the pH value at the point of zero charge (pHPZC)?

Dear colleagues I feel confused about the term pH at the point of zero charge, does it mean the value of pH of the solution before apply electrical potential on it (i.e. before polarize it)? Many...

04 March 2017 6,740 10 View

Is Williamson-Hall method applied on powder only or can be applied on thin film also?

Williamson-Hall method

20 October 2016 3,555 34 View

What is the relation between crystalline size and the resistance during annealing thin film?

When annealing thin film at constant temperature for different times, the crystalline size (D) decreased and also the resistance (R) decreased. Both parameters lead to increase the sensitivity...

20 October 2016 4,705 13 View

What is the relation between grain size (D) and the particle size?

Can anyone please help me by providing the relation between the grain size (which is the minimum unit in the material and can be calculated using XRD data) a particle size (which we can find using...

01 January 1970 4,989 12 View

What is the (d spacing), obtained from XRD measurement?

Dear Colleagues Good day I would like to ask about the parameter (dhkl spacing) that we obtained from the XRD data, is it the spacing between grains or particles or atoms? And are the particle and...

01 January 1970 3,315 17 View

In pH sensor (membrane surface), which one will interact with hydrogen and hydroxide ions (atoms or molecules)?

The pH sensing mechanism based on the ion-exchange between hydrogen ions and the surface sites of the metal membrane. Increasing the number of sites (Ns) lead to increase the positive charge at...

01 January 1970 1,822 1 View