Which effect inhibits electron tunneling through a quantum dot with misaligned work functions?

💡 Explanation

With mismatched work functions, a potential difference arises, creating a Coulomb blockade that increases the energy required for an electron to enter the quantum dot, thus inhibiting tunneling because of increased repulsion. Therefore, Coulomb blockade increases the threshold, rather than altering scattering, capacitance or spin which follow different mechanism impacts.

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