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Which consequence results when excessive lattice defects cause band tailing?

A)Increased non-radiative electron-hole recombination
B)Enhanced free carrier concentration
C)Reduced phonon scattering rate
D)Decreased material tensile strength

💡 Explanation

Increased structural disorder causes *Urbach tailing*, broadening band edges because localized states appear within the band gap; therefore non-radiative recombination increases, rather than free carriers, which is only a secondary effect at higher temperatures.

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