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← ScienceWhich mechanism limits electron conductivity in a partially filled molecular orbital within a nanowire?
A)Coulomb repulsion between electrons
B)Phonon scattering disrupting wave propagation✓
C)Quantum tunneling through potential barriers
D)Band structure mismatch at nanowire ends
💡 Explanation
When electrons propagate in a partially filled orbital, phonon scattering occurs because thermal vibrations disrupt the electron's wave-like motion, limiting its mean free path and conductivity. Therefore Phonon scattering limits conductivity, rather than Coulomb repulsion, quantum tunneling, or band mismatch which are less dominant in this scenario.
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