Light-emitting device including hole transport region containing group 11 metal chalcogenide compound
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United States of America Patent
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Feb 27, 2024
Grant Date -
Aug 5, 2021
app pub date -
Aug 19, 2020
filing date -
Jan 31, 2020
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Abstract
A light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer between the first electrode and the second electrode and including an emission layer, wherein the interlayer includes i) a hole transport region between the first electrode and the emission layer, and ii) an electron transport region between the emission layer and the second electrode, and the hole transport region includes a Group 11 metal chalcogenide compound including a Group 11 metal and a chalcogenide element with the proviso that oxygen is excluded from the chalcogenide element.
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