Conversion of Optical Photons into Electrical Photons as might occur in a battery

See previous post on how a battery and electrical condustors work.  In that post it describes a process in which a visible light photon is generated inside a battery by the 1.5 volt chemical reaction.    I was curious when I wrote that how the optical photon could be converted to an electrical photon.  The above diagram gives a possible explanation how that could occur. When you have an optical photon generated inside of an opaque material it can not propagate very far.   It forms a region with increased photonic pressure.   It is absorbed at some high level excited state of a charge carrier.  It then can cascade downwards in the small steps of the conduction band.  This allows the energy to propagate along the copper in the form of electrical current.

You can also imagine a solar cell acting in a similar fashion with the source of the optical photon being sunlight instead of chemical energy of the battery.