Resumen de Preparation of Semiconducting Materials in the Laboratory, Part 3: The One-Penny Photovoltaic Cell

Jorge G. Ibanez, Adolfo Finck Pastrana, Alejandra Mugica Barrera, Patricia Balderas Hernandez, Martha E. Ibarguengoitia Cervantes, Elizabeth Garcia Pintor, Jose Miguel Hartasanchez Frenk, Cesar E. Bonilla Jaurez, Casandra Maldonado Cordero, Adelwart Struck Garza, Felipe Suberbie Rocha

• Copper(I) oxide photoresponsive layers are prepared on copper surfaces (e.g., U.S. pre-1982 pennies) by simple thermal, chemical, and electrochemical procedures. An easily measurable photovoltage (up to 100 mV) is obtained in each case under visible light illumination.