| What is semiconductor? |
| Conductivity |
| Semiconductor element |
| Property of semiconductor materials |
| Crystal structure |
| Doping |
| N-type and P-type material |
| N-type and P-type band gap shift |
| P-type and N-type
Junction before and after the two materials are brought in contact |
| P-N junction structure |
| Electron Flow |
| Semiconductor in PV cell |