Which mechanism limits achievable data density in molecular electronic devices employing self-assembled monolayers?

💡 Explanation

When molecular electronic devices shrink, decreasing molecule pitch allows increasing data density, but quantum mechanical electron tunneling then acts as a leakage path between adjacent molecules, because of reduced barrier thickness giving shorter junction. Therefore electron tunnelling creates short-circuits, rather than repulsion, vibration, or electromigration requiring other limiting conditions.

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