Which mechanism causes widening of band gaps within intrinsic semiconductor materials as physical stress increases?

A)Piezoresistive effect modifying bond length✓

B)Increased electron-phonon scattering processes

C)Reduced quantum confinement diminishes waves

D)Enhanced impurity doping fluctuations widening space

💡 Explanation

Increased stress induces the piezoresistive effect which can alters the interatomic spacing and thus the crystal lattice, modified bond length changes the potential felt by electrons, hence affects the band structure. Therefore, the band gap widens because stress modifies bond potentials rather than altering scattering.

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Which mechanism causes widening of band gaps within intrinsic semiconductor materials as physical stress increases?

💡 Explanation

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