光子激发电子
Photons excite electrons
以上为机器翻译结果，长、整句建议使用 人工翻译 。
第二步策略是减小两个传导带态的能量落差，这样一来受激发电子就更容易溢入光子释放态。
The second strategy was to lower the energy difference between the two conduction-band states so that excited electrons would be more likely to spill over into the photon-emitting state.
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