Manufacturing Method of Nitride Semiconductor Photoelectrode

US2022403529A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2022403529-A1
Application numberUS-201917780277-A
CountryUS
Kind codeA1
Filing dateDec 3, 2019
Priority dateDec 3, 2019
Publication dateDec 22, 2022
Grant date

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Abstract

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A method for producing a nitride semiconductor photoelectrode includes: a first step of forming an n-type gallium nitride layer on an electrically insulative or conductive substrate; a second step of forming an indium gallium nitride layer on the n-type gallium nitride layer; a third step of forming a p-type nickel oxide layer on the indium gallium nitride layer; and a fourth step of subjecting a nitride semiconductor in which the p-type nickel oxide layer has been formed to heat treatment.

First claim

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1 . A method for producing a nitride semiconductor photoelectrode, the method comprising: a first step of forming an n-type gallium nitride layer on an electrically insulative or conductive substrate; a second step of forming an indium gallium nitride layer on the n-type gallium nitride layer; a third step of forming a p-type nickel oxide layer on the indium gallium nitride layer; and a fourth step of subjecting a nitride semiconductor in which the p-type nickel oxide layer has been formed to heat treatment. 2 . The method for producing a nitride semiconductor photoelectrode according to claim 1 , wherein metal organic chemical vapor deposition is used in the first step and the second step. 3 . The method for producing a nitride semiconductor photoelectrode according to claim 1 , wherein vapor deposition or sputtering is used in the third step. 4 . The method for producing a nitride semiconductor photoelectrode according to claim 1 , wherein the heat treatment is performed at a temperature of 200° C. or higher and 800° C. or lower in the fourth step. 5 . The method for producing a nitride semiconductor photoelectrode according to claim 2 , wherein vapor deposition or sputtering is used in the third step. 6 . The method for producing a nitride semiconductor photoelectrode according to claim 2 , wherein the heat treatment is performed at a temperature of 200° C. or higher and 800° C. or lower in the fourth step. 7 . The method for producing a nitride semiconductor photoelectrode according to claim 3 , wherein the heat treatment is performed at a temperature of 200° C. or higher and 800° C. or lower in the fourth step.

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What does patent US2022403529A1 cover?
A method for producing a nitride semiconductor photoelectrode includes: a first step of forming an n-type gallium nitride layer on an electrically insulative or conductive substrate; a second step of forming an indium gallium nitride layer on the n-type gallium nitride layer; a third step of forming a p-type nickel oxide layer on the indium gallium nitride layer; and a fourth step of subjecting…
Who is the assignee on this patent?
Nippon Telegraph & Telephone
What technology area does this patent fall under?
Primary CPC classification C23C28/04. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Thu Dec 22 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).