Ethan Holtzman says his band attempts to shine a light on this fact to help make sure such a situation never happens again.

VOA: special.2011.05.06

These are photodetectors, band gap two electron volts, respond to visible light.

这是光电探测器，能带隙为2电子伏，当它反应于可见光。

麻省理工公开课 - 固态化学导论课程节选