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← ScienceWhich consequence results when isotopic abundance shifts in semiconductors?
A)Change in thermal conductivity✓
B)Increased electron effective mass
C)Reduced phonon scattering events
D)Altered minority carrier diffusivity
💡 Explanation
A change in isotopic abundance shifts the semiconductor's average atomic mass, triggering phonon scattering differences by mass variation. This changes the Thermal Conductivity because isotopes alter lattice dynamics rather than electronic band structure; therefore, thermal conductivity changes.
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