1. , , and , XIII. IEEE Photovoltaic Spec. Conf. Washington (DC) 1978, IEEE, New York 1978 (p. 174).
2. , , , and , XIV. IEEE Photovoltaic Spec. Conf., San Diego (Calif.) 1980, IEEE, New York 1980 (p. 458).
3. Explanation for low‐efficiency Cu2O Schottky‐barrier solar cells
4. , and , see [2] (p. 462).
5. , and , see [2] (p. 453).