Wz. Lin et al., ULTRAFAST EXCITON TRAPPING DYNAMICS IN ZNSE (CDSE)(M)(ZNSE)(N) SHORT-PERIOD SUPERLATTICE QUANTUM-WELLS/, Chinese Physics Letters, 13(2), 1996, pp. 141-144
The ultrafast exciton trapping dynamics in ZnSe/ZnCdSe short period su
perlattice quantum wells has been studied by using transient photolumi
nescence spectroscopy. A rapid exciton trapping time of less than 7 ps
front the harriers to the wells is measured. In Te doped samples self
-trapped excitons give rise to Stokes shifted bread band luminescence
and exhibit much longer lifetime.