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US 12,439,742 B2Granted
Light emitting device with electrode having specified molar ratio of magnesium to zinc
AssigneesIdemitsu Kosan Co., Ltd., National University Corporation Tokai National Higher Education and Research System
InventorsYoshihiro Ueoka, Shigekazu Tomai, Satoshi Katsumata, Maki Kushimoto, Manato Deki, Yoshio Honda, Hiroshi Amano
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Abstract
A stacked body comprising: a semiconductor layer comprising a group III-V nitride semiconductor, and an electrode layer, wherein the electrode layer comprises magnesium oxide and zinc oxide, wherein the molar ratio of magnesium based on the sum of magnesium and zinc of the electrode layer [Mg/(Mg+Zn)] is 0.25 or more and 0.75 or less, and conductivity of the electrode layer is 1.0×10−2 S/cm or more.
Claims19
A stacked body, comprising:
- a semiconductor layer comprising a group III-V nitride semiconductor;
- and
- an electrode layer comprising magnesium oxide and zinc oxide,
- wherein the electrode layer has regions mainly composed of zinc oxide and regions mainly composed of magnesium oxide,
- wherein the electrode layer has a molar ratio of magnesium based on a sum of magnesium and zinc, Mg/(Mg+Zn), in a range of from 0.25 to 0.75, and the electrode layer has a conductivity of 1.0×10−2 S/cm or more.
2 more elements
Dependencies are inferred from the claim text.