How can we calculate the roughness factor from Ra measured by profilometry in order to estimate the real active surface area of a photoanode?

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Stoyan Dimitrov Slavov

Hi,

May be you should check out this Question:

https://www.researchgate.net/post/how_to_calculate_surface_roughness_factor_from_AFM_analysis/1

Sooraj Shiby

I have measured the surface area change with AFM. From the AFM data, by using Gwyddion software we can estimate the surface area