ULTRAVIOLET SEMICONDUCTOR LIGHT-EMITTING ELEMENT
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United States of America Patent
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Issued Date -
Dec 28, 2023
app pub date -
Jun 15, 2023
filing date -
Jun 15, 2023
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Abstract
An object of the present invention is to provide an ultraviolet semiconductor light-emitting element that allows a user to easily confirm whether or not it is driven to emit the deep ultraviolet light. An ultraviolet semiconductor light-emitting element according to the present invention includes a single crystal AlN substrate, an n-type AlGaN layer, an active layer, and a p-type AlGaN layer. The n-type AlGaN layer is formed on the single crystal AlN substrate. The active layer is formed on the n-type AlGaN layer. The active layer has a light emission peak wavelength of 250 nm or more and 280 nm or less. The p-type AlGaN layer is formed on the active layer. The C concentration in the single crystal AlN substrate is 3×1017 atoms/cm3 or more.
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