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← ScienceWhich mechanism hinders electron emission from a fullerene?
A)Centrifugal barrier opposes electron escape✓
B)Surface states increase dielectric screening
C)Increased dipole-dipole van der Waals radius
D)Electron-phonon scattering hinders momentum transfer
💡 Explanation
The centrifugal barrier effect opposes classical trajectory for valence electron emission; because angular momentum introduces an effective potential which hinders traversal for lower energy electrons. Therefore emission decreases, rather than increased emission from dielectric, changes to the atomic spacing or phonon losses.
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