Zhang Jiahua, Fan Xiwu. INFLUENCE OF HEAT TREATMENT IN VACUUM ON PHOTOLUMINESCENCE OF VPE ZnS<sub>x</sub>Se<sub>1-x</sub> EPILAYER[J]. Chinese Journal of Luminescence, 1990,11(2): 90-95
Zhang Jiahua, Fan Xiwu. INFLUENCE OF HEAT TREATMENT IN VACUUM ON PHOTOLUMINESCENCE OF VPE ZnS<sub>x</sub>Se<sub>1-x</sub> EPILAYER[J]. Chinese Journal of Luminescence, 1990,11(2): 90-95DOI:
There is considerable interest in luminescence of ZnS
x
Se
1-x
bluk crystals and epilayeis.P.K.Chatter jee et al.and M.Yamaguchi et al.observed a broad band(4700-4800Å)in photoluminescence(PL)spectra in Aland Na-doped ZnSe at 4.2K and in Li-or Na-doped ZnSe at 90K
respectively
They attributed this band to D-A pair recombination and free to bound recombination
respectively.In this paper we leport that a broad band A was observed in PL spectra in vacuum heated VPE ZnS
x
Se
1-x
epilayers at LNT.The origin of the band A is discussed.VPE ZnS
x
Se
1-x
.epilayers used in this work were grown on(100)GaAs substrate with VPE method.Specimen was excited by 500W Hg arc lamp
PL spectra were measured using a grating spectromator of Model 44W with C31034 cooled photomultiplier.