Usually made of crystalline silicon
Crystalline silicon panels: polycrystalline silicon solar cells, monocrystalline silicon solar cells.
Amorphous silicon panels: thin film solar cells, organic solar cells.
Chemical dye panels: Solar cells sensitized to dyes.
How to make a simple solar panel
Solar panels are devices that use the photoelectric effect to convert light energy from the sun into electrical energy - photovoltaic cells for short are common photovoltaic cells. is obtained using silicon doped with phosphorus and boron as cathode and anode respectively. So the main answer is silicon - silicon, not glass, which is silicon dioxide.
The suggested electrical panel cannot be made by yourself, unless you remove it from another place.Then use.
Solar panels use high purity semiconductors and monocrystalline silicon. These items are not made by ourselves at all. They are extracted by the flexor method. The process is also very complicated. Arsenide is now very expensive and toxic.