The extra electron fills up the lower-energy state in the conduction band, causing excited electrons to, effectively, spill over into the higher-energy, photon-emitting state.

这个额外的电子填充了传导带的较低能级，有效的导致了被激发的电子溢入较高，释放光子的能级。

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Excited triplet diene is formed via back electron transfer between radical ion pair within a solvent cage.

处于溶剂笼中的三重态离子自由基对经电子反传，产生激发三重态二烯。

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Some electron collisional transfer rates between excited states of the atom can be calculated from this model using experimental data of both sensitized and direct resonant fluorescence.

用敏化荧光和共振荧光的实验数据，可由该模型定出由于电子与原子碰撞而产生的原子能级间的转移速率。

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So, for example, we could talk about the n equals 2 state, so that's this state here, and it's also what we could call the first excited state. So we have the ground state, and if we excite an electron into the next closest state, we're at the first excited state, or the n equals 2 state.

例如，我们可以考虑n等于2的状态，它在这里，它也被称作是第一激发态,我们有基态，如果我们把一个电子,激发到它最近邻的态,那就是第一激发态，或者n等于2的态。

麻省理工公开课 - 化学原理课程节选

When an electron drops back from an excited to an unexcited state, it gives out light.

ECONOMIST: Optoelectronics