Size-selective photoluminescence excitation spectra reveal that energy difference between the lowest optical translations increases due to stronger size quantum effect.

尺寸选择激发光谱表现了较强量子尺寸效应引起的最低光学跃迁之间能量差的增大。

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But then there is another difficulty: making the components exactly the right size is even more crucial for a quantum-effect device than for a regular transistor.

ECONOMIST: The transistor��s heir