FIG. 1. Thermodynamic modeling (T=400◦ C) of the net doping log(|ND−NA|/cm−3) in Cu2−2x(II)xO1−y(VI)y alloys as a function of x and y for 4 different II/VI combinations. ND and NA are individual concentrations of donors and acceptors, respectively. The sign indicates the type of doping (positive for p-type, negative for n-type). The band gap values extrapolated according to eq. (2) are given for the end compositions for 0  (x, y)  0.2.

FIG. 1. Thermodynamic modeling (T=400◦ C) of the net
doping log(|ND−NA|/cm−3) in Cu2−2x(II)xO1−y(VI)y alloys
as a function of x and y for 4 different II/VI combinations.
ND and NA are individual concentrations of donors and acceptors,
respectively. The sign indicates the type of doping
(positive for p-type, negative for n-type). The band gap values
extrapolated according to eq. (2) are given for the end
compositions for 0  (x, y)  0.2.