  The luminecsence of ZnSCdS-Cu phosphors of various CdS consentration (0-40%)
is under investigation. The luminescence was exited by hydrogen atoms during
adsorbtion of thermal energy during adsorbtion and impact
recombination-heterogeneous chemiluminenscence(HCL) are discussed. The monotone
lowering of the conductivity zone bottom level with respect to the valence zone
ceiling (from 3,7 eV to 3,2 eV) with increasing CdS concentration (from 0 -
40%). HCL intensity with respect to CdS (from 3,7 eV to 3,2 eV)- concentration
($E_g$)grows rapidly. The dependence of HCL intensity on the forbidden zone
width can be explained by the action of electron - hole pairs multiquontum
generation mechanism.
