Exciton is electron - hole pair held together by their mutual Coulomb interaction.

激子就是由电子和空穴在相互间的库仑力作用下,相互维持在一起的电子 -- 空穴对.

辞典例句

As with a conventional photodiode, absorption of incident photons creates electron - hole pairs.

和传统的光电二极管一样, 吸收入射光子会造成电子和空穴对.

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