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Effect of humidity on electric potential of ZrO2 nanocomposite investigated by AFM/ KPFM.

Anum Rasheed

Professor Erkki Lähderanta
Researcher Pavel Geydt

 

ABSTRACT

ZrO2 nanocomposites were investigated bearing in mind their potential in displaying varying surface potential due to changes in humidity in the environment. Scanning Probe Microscopy (SPM) was used in general for studying the electrical properties as it  allowed the visualization of electrical properties. The sample was studied under different levels of humidity. Kelvin Probe Force Microscopy (KPFM) was the main technique utilized to characterize the varying charge distribution on the sample’s topography. The influence of humidity on the electric potential was shown. The results concluded that electrical potential changes with change
in environment’s humidity level.

 

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Keywords:

ZrO2

Hygroelectricity

Nanocomposites

SPM

AFM

KPFM

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