Idemitsu Kosan Company, Limited

National University Corporation Tokai National Higher Education and Research System

Satoshi Katsumata

Shigekazu Tomai

Yoshihiro Ueoka

Hiroshi Amano

Yoshio Honda

Maki Kushimoto

Kenichi Sasaki

Masashi Oyama

Manato Deki

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 1.0×10S/cm or more.

Light emitting device with electrode having specified molar ratio of magnesium to zinc

A sintered body, containing zinc, magnesium and oxygen as constituent elements, wherein the atomic ratio of zinc to the sum of zinc and magnesium [Zn/(Zn+Mg)] is 0.20 to 0.75, the atomic ratio of magnesium to the sum of zinc and magnesium [Mg/(Zn+Mg)] is 0.25 to 0.80, and the sintered body consists of a single crystal structure as measured by X-ray diffraction.

Sintered body

Growing community of inventors

Sodegaura, Japan

Satoshi Katsumata