If we know cross sections of this molecule and we can Measure how many molecules coverage in a unit surface area,  then we can calculate surface coverage (molecule/cm2) of a molecule in a surface.

If we know cross sections of this molecule and we can Measure how many molecules coverage in a unit surface area,  then we can calculate surface coverage (molecule/cm2) of a molecule in a surface.

Got it!

Thank you very much Shen-Ming Chen :)

If you are taking about experimental work, what you need is to measure the flux then you can control the time knowing how many molecules you deposited per unit area.  Then it is a matter of unit conversion.

If you have already the adsorbates, you can use the surface reconstruction of using LEED or RHEED, or maybe STM.

By DFT, you would consider the crystal structure then the lattice spacings

in this case you can convert numbers to areas or vice versa

regards

Hamad

No, it is a theoretical study.

Thanks anyway!

Luis

Do you have a plane substrate? For Polymer we use ellipsometry and calculate the optical thickness and by using a formula we getting the surface coverage out of this data.

Best regards

Christian

Dear Luis

You can use  Quartz Crystal Mechanisms (QCM) 

Or you can even use the combination of QCM and Ellipsometry (QCM-D) and measrue simultanously.

Best regards

Christian

Thank you very much guys!

Hi everyone,

I need to calculate surface coverage (molecule/nm2) of the adsorption of a molecule in a surface? ( I know the number of molecules coverage in a unit surface area and weight loss from TGA data).

Thank you very much!