PHOTOELECTRIC CONVERSION ELEMENT
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United States of America
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Issued Date -
Feb 6, 2025
app pub date -
Mar 12, 2024
filing date -
Mar 12, 2024
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Abstract
A photoelectric conversion element in an embodiment, includes: a substrate; a first electrode; a photoelectric conversion film containing a perovskite crystal having a composition expressed by ABX3; an electron transport layer; and a second electrode. The second electrode includes: a first layer arranged on the electron transport layer and containing at least one first metal selected from Ti, Sn, Zn, Ce, In, and Nb and an oxide of the first metal; and a second layer containing a second metal and an oxide of the second metal. The second layer includes: a first region existing on the first layer side; a second region existing on the first region and having a lower oxygen concentration than the first region; and a third region existing on the second region and having a higher oxygen concentration than the second region.
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