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← ScienceWhich consequence results the introduction of impurities within semiconductor crystalline structure?
A)Increased formation of electron-hole pairs.
B)Controlled tuning of the bandgap energy.✓
C)Enhancement of intrinsic semiconductor resistance.
D)Elimination of phonon scattering mechanisms.
💡 Explanation
Introducing impurities allows for *doping*, which tailors the *band structure*. The *altered structure* enables control of bandgap energy, because the impurities cause *shifts* within the energy band, therefore bandgap is controllable rather than exclusively influencing carriers.
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