因此，发生第一激发态跃迁时，将发生分子间电子转移，从而引起荧光猝灭效应。

It suggests that intermolecular electron transfer occurs during the transition of the first excited state, which results in the fluorescence quenching effect.

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发现在高电子密度下电子会向量子限制较弱的退局域态转移。同时还经由热电子隧穿而跃迁到表面态。

It is found that the electrons may be transferred into delocalized states with high energy and transited to surface states through hot electron tunneling under high electron concentration.

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