等电子杂质对提高间接带隙材料的发光效率起着关键作用。因为等电子陷阱俘获载流子后成为带电中心，这一中心由于库仑作用又能俘获另一种带电符号相反的载流子从而成为定域激子，称为束缚激子。
讨论了氯化铯型离子晶体束缚激子的结合能、极化波振子强度、零色散波长和微观参数之间的关系。
The strengths of the polarization wave oscillator are calculated. The material dispersion and the zero dispersion wavelengths f…
然而，塑料太阳能电池向另一释放电子和空穴形成激子时束缚力很强。
However, in plastic solar cells the liberated electrons and holes bind strongly to one another, forming particle-like entities known as excitons.
我们的的这个结果意味着，这种激子的束缚能很弱，或者是形成单线态的几率可能要比形成三线态的几率高得多。
Our results imply that the exciton binding energy is weak, or that singlet bound states are formed with higher probability than triplets.
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