In this case, all carriers excited to the conduction band almost instantaneously decay to shallow donor levels and recombine
with acceptor states emitting photons corresponding
to DAP recombination.
In bulk ZnSe, IPDs have been identified by
optical detection of magnetic resonance [ODMR]studies
and electron paramagnetic resonance [EPR]studies and confirmed
to be zinc vacancies, zinc interstitials, and Frenkel
pairs involving zinc vacancies and zinc interstitials of varying
separation in the lattice. There have also been few reports
suggesting the presence of Se vacancies in ZnSe,  though theoretically Laks et al.concluded that due to a high formation energy of Se vacancies, they did not play a significant
role in ZnSe.
[search]翻译[/search]

在这种情况下，所有流向导带的载体几乎立即衰减为低施主能级并.......

不好意思,有点吃不消,专业不对口!

在这种情况下，所有激发到导带饿载流子几乎瞬间衰减到浅施主能级，并以DAP复合的形式与受主发射的光子复合。在ZnSe块体中，通过磁共振，核磁共振光学检测证实有IPD以空位Zn，间隙Zn和晶格中变化部位与两者相关的Frenkel对的形式存在 。目前对ZnSe中的Se空位报道较少。Laks等人尽管理论上认为由于Se空位的形成能高，也认为Se空位在ZnSe中的不起主要作用。