Observation of single electron transport via multiple quantum states of a silicon quantum dot at room temperature.

Lee, Sejoon; Lee, Youngmin; Song, Emil B; Hiramoto, Toshiro · Nano Lett · 2014

basic_science · Level V

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Abstract

Single electron transport through multiple quantum levels is realized in a Si quantum-dot device at room-temperature conditions. The energy spacing of more than triple the omnipresent thermal energy is obtained from an extremely small ellipsoidal Si quantum dot, and high charge stability is attained through a construction of the gate-all-around structure. These properties may move us a step closer to practical applications of quantum devices at elevated temperatures. An in-depth analysis on the transport behavior and quantum structure is presented.