Which kind of defects are introduced by doping ?

Options

A. Dislocation defects
B. Schottky defects
C. Frenkel defects
D. Electronic defects

Explanation

**Step-by-Step Solution:**

1. **Understanding Doping:**
- Doping is the process of adding impurities to intrinsic semiconductors (like silicon or germanium) to modify their electrical properties.

2. **Types of Impurities:**
- Doping involves using trivalent (three valence electrons) or pentavalent (five valence electrons) elements.
- Trivalent impurities (like Boron) create "holes" in the semiconductor, leading to a p-type semiconductor.
- Pentavalent impurities (like Phosphorus) provide extra electrons, resulting in an n-type semiconductor.

3. **Defects Introduced by Doping:**
- When these impurities are added, they introduce defects in the crystal structure of the semiconductor.
- The introduction of trivalent or pentavalent impurities leads to the formation of electronic defects.

4. **Nature of Electronic Defects:**
- Electronic defects are characterized by the presence of free charge carriers: electrons and holes.
- In a p-type semiconductor, holes are the majority carriers, while in an n-type semiconductor, electrons are the majority carriers.

5. **Conclusion:**
- Therefore, the kind of defects introduced by doping in semiconductors is classified as electronic defects.

**Final Answer:**
The kind of defects introduced by doping is electronic defects.

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