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.
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。
2
If it s in the first state, and it falls out of the conductionband, it will release its extra energy as a photon.
如果是在第一形态，并且它逃离出了传导带，他会以光子的形式释放多余的能量。
3
Changing the Angle and length of the bonds between germanium atoms also changed the energies required to kick their electrons into the conductionband.