i have graphene mixed with ethanol and deposited onto metal substrate and subjected below AFM cantilever, but i'm getting unusually high noises in the image recorded, whereas when the same was tried with graphene mixed with polymer i was able to record some decent images.
Params in both cases
Setpoint: 20nN
Time:1.0s
Image size: 62.5um
Points/line:256
P-gain: 10000
I-gain:1000
D-gain:0
Could anyone find out my mistake and point it out, so that i may be able to correct it.