PHOTOELECTRIC CONVERSION ELEMENT, METHOD FOR MANUFACTURING THE SAME, OPTICAL SENSOR, AND SOLAR BATTERY CELL

摘要

PROBLEM TO BE SOLVED: To provide a photoelectric conversion element capable of obtaining a large photoelectric current and excellent in simplicity and mass productivity.SOLUTION: A photoelectric conversion element 10 includes a PN junction 13 formed between an N-type oxide layer 11 and a P-type oxide layer 12. The N-type oxide layer 11 is formed of an oxide having a perovskite structure containing titanium and strontium, and a part of strontium is substituted with a +3 valence metal element or a part of titanium is substituted with a +5 valence metal element. The amount of the metal element substituted in the N-type oxide layer 11 is 0.01-0.75 mass%.