an electron that is emitted from an atom or molecule by an incident photon
双语例句
In order to produce photoelectrons, light is needed as the source of radiation. 光电子的产生是需要有光作为辐射源。
Also in the chamber, particulates such as dust and smoke are bombarded by photoelectrons to remove them from the air. 而且，在反应窝内，尘埃及烟雾之类的粒子会受到光电子的碰撞而从空气中被脱除。
