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← ScienceWhich mechanism limits electron mobility through carbon nanotube transistors when surface orbitals are affected?
A)Phonon scattering through lattice vibrations
B)Coulomb blockade from charge accumulation
C)Anderson localization from disorder potential✓
D)Quantum interference from topological defects
💡 Explanation
When surface orbitals have fluctuating potential due to the tube surface modifications, Anderson localization occurs because electrons become trapped in localized energy wells, inhibiting free movement. Therefore carrier mobility decreases, rather than through scattering, Coulomb blockade, or quantum interference, which require different device characteristics.
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