1. Substitute beer and pizza?

2. Basic Silicon Solar Cell
Schematic

3. The process begins with a silicon wafer, (100) orientation, PRIME grade, 1-20 ohm-cm resistivity

4. Using a spin on liquid phosphorus film as a dopant source, a n-region is diffused into the silicon wafer at 950C

5. A metal film is evaporated on the top surface and a photolithographic mask creates a conductive grid in the metal

6. A second metal film is deposited on the back for backside contact

7. Using PECVD (plasma enhanced chemical vapor deposition) a anti-relective coating of SiO2 is deposited on the top surface

8. Individual cells are diamond saw cut from the wafer

9. Electrical testing (I-V trace) of the cell is performed under a solar light simulator

10. Completed Solar Cell