Table 1 Summary of types and energies of Zn _x Cd_1 − x S QD emissions

 Defect activated emission (eV)

E1 (V_S–V_B)

2.56

2.42

2.21

2.02

2.03

E2 (V_S–I_S)

2.42 green

2.24 green

2.07 yellow

1.91 red

1.90 red

E3 (V_S–V_M)

2.27

2.07

1.89

1.71

1.71