Physics · Semiconductors
At a certain temperature in an intrinsic semiconductor, the electron and hole concentration is 1.5 × 1016 m−3. When it is doped with a trivalent dopant, the hole concentration increases to 4.5 × 1022 m−3. In the doped semiconductor, the concentration of electrons (ne) will be:
- 13 × 106 m−3
- 25 × 107 m−3
- 35 × 109 m−3✓
- 46.75 × 1038 m−3
Correct answer
5 × 109 m−3
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