Surface photovoltage, Space charge and Point charges

arrektor
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The surface photovoltage effect suggests that the potential at the surface of a semiconductor will change when it is illuminated since hole-electron pairs are created.

The regions near the surface (depletion regions) contains defects that create a built-in voltage and built-in potential and the mobile carriers are emptied from this region (creates a "band-bending").

I am thinking about the situation where metal nano-particles are embeeded within two semiconductors (organic). If these nanoparticles are restricted within a thin layer, would this create a photovoltage across that interface when light hits this system?
 
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is it for an infinite or finite square lattice?
 
Hi. I have got question as in title. How can idea of instantaneous dipole moment for atoms like, for example hydrogen be consistent with idea of orbitals? At my level of knowledge London dispersion forces are derived taking into account Bohr model of atom. But we know today that this model is not correct. If it would be correct I understand that at each time electron is at some point at radius at some angle and there is dipole moment at this time from nucleus to electron at orbit. But how...

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