The piezoelectric effect has been demonstrated for the first time in s
trained ZnSe/ZnCdSe quantum wells grown on (211)B GaAs substrate. A pi
ezoelectric field strength of 1.1 x 10(5) V/cm has been observed in Zn
0.8Cd0.2Se quantum wells that have a 1.3% lattice mismatch with the su
bstrate.