Ali Sheraz

4 Questions 2 Answers 0 Followers

Questions related from Ali Sheraz

Why we need Pt/Ir coated tips, Force constant (0.01, 0.11, 0.5) values for KPFM to measure surface potential? Why Force constant should should low?

I am Doing KPFM of TMDCs(MoS2, NbS2, WS2 and V2O3). I wonder why we need Force constant values very low and Mechanical Resonance Frequency Values around 75KHz.??

08 May 2019 9,606 1 View

Everytime I am getting different values of CPD after KPFM scan. If I scan same sample again, slight variation in CPD values. Suggestions ?

Hi All, I am doing KPFM (Kelvin probe force microscopy) to measure Work Function of TMDCs. Everytime I am getting different values of CPD. If I scan same sample again, slight variation in CPD...

08 May 2019 6,875 2 View

Hi All, I want to ask question about KPFM(Kelvin Probe Force Microscopy). Can we get NAP potential without providing voltages to AFM tip??

I am doing KPFM of 2D materials for calculation of their workfunction.

03 May 2019 4,420 0 View

Hi all, I am doing KPFM (Kelvin probe force microscopy) to measure work function of TMDCs. I want to ask weather I should ground every sample or not ?

I am Doing KPFM of TMDCs(MoS2, NbS2, WS2 and V2O3). I wonder i sometimes get very confusing values of contact potential difference. So, I want to ask weather I should ground both tip and my sample...

06 March 2019 3,361 4 View