I am afraid your plan is bound to fail.
What you need to teach:
Chemistry and chemical engineering
You will need to teach them how to extract and purify the elements you need: silicon and its dopants, the various metals and all the materials needed to process them.
You will also need to invent the Czochralski process
The Czochralski process is a method of crystal growth used to obtain single crystals of semiconductors. [...] The most important application may be the growth of large cylindrical ingots, or boules, of single crystal silicon used in the electronics industry to make semiconductor devices like integrated circuits.
If you want to grow monocrystals, you need an automated way to control the process. This means electronic and computers.
You need to find the places where the ores can be extracted. Silicon and its dopants don't grow on trees.
Mind that just for smelting silicon you need to take it at 1425 C. That means an awful lot of energy, plus the one needed to power the entire production line and related control.
And since you don't have any "green" source, guess what you have to use? Yes, coal/wood. This means that you will have to teach them also mining engineering, but since they will have a bonanza of easily accessible coal, why would they bother chasing your dream of solar energy, with all the hassle it bears along?