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← ScienceWhich outcome occurs when quantum dots form oxide layers?
A)Tunneling current decreases non-linearly✓
B)Coulomb blockade effect becomes negligible
C)Light emission shifts towards blue
D)Thermal conductivity increases significantly
💡 Explanation
A non-conductive oxide layer acts as a higher potential energy barrier. Quantum tunneling probability decreases exponentially with barrier height because the wave function attenuates, therefore the tunneling current drops non-linearly, rather than remaining constant or linearly decreasing under different constraints.
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