What is true, photovolatic cell is made by copper,or photovolatic cell is made by polysilicon?

Question

What is true, photovolatic cell is made by copper,or photovolatic cell is made by polysilicon?

Answer 1

They are made of silicon.

The wires that may be attached are made of copper.

Answer 2

in general photovoltaic cells are made of silicon, but other compounds are also used depending on the cost and type of light available.

However there are metal contacts within the silicon, although these are usually silver.

Answer 3

both are true, there are many different designs for PV cells using many different materials, but most commercial ones are silicon based.