The binding of a sensitzing dye to the surface of a silver filament or deposit of any sort would be disrupted by oxidation and the dye would be removed, and then the silver halide would form in the presence of a very low concentration of dye, if I understand your process properly.
It would be more useful to form the silver halide and then dye it, even in situ although the speed would be low.
Remember too, that Edison was not a very nice person, but persistant. It took him years to develop his electric light. And, Tesla was also in favor of using the natural energy of the earth. He claimed to cause earthquakes by vibrating metal bars at the natural frequency of the earth and he said he could broadcast energy waves all over the earth to power equipment or to be used as weapons. Some things work and some don't. Give it a try and see what happens.