Title:
METHOD FOR MANUFACTURING CATHODE ELECTRODE OF ULTRAVIOLET SENSOR AND ULTRAVIOLET SENSOR
Document Type and Number:
Japanese Patent JP2019029199
Kind Code:
A
Abstract:
To provide an ultraviolet sensor in which a limit sensitivity wavelength is expanded to 280 nm or more.SOLUTION: Cupronickel is subjected to rolling treatment (S101). Copper is deposited on a surface of the cupronickel having been subjected to the rolling treatment (S102), and nickel in the cupronickel is diffused in copper (copper plating) having been deposited (S103). In this case, the copper has a smaller work function than that of nickel, so that electrons move from the copper to the nickel. As a result, an oozing-out amount of electrons of the copper at portions in contact with the nickel is decreased, and the barrier of electron emission from the copper is reduced, so that a work function becomes smaller. Accordingly, a limit sensitivity wavelength can be expanded to 280 nm or more.SELECTED DRAWING: Figure 1
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Inventors:
KATAGIRI MUNEKAZU
NAKAJIMA ARINORI
NAKAJIMA ARINORI
Application Number:
JP2017147605A
Publication Date:
February 21, 2019
Filing Date:
July 31, 2017
Export Citation:
Assignee:
AZBIL CORP
International Classes:
H01J9/12; F23N5/08; H01J40/06
Domestic Patent References:
| JP2013029453A | 2013-02-07 | |||
| JPH04152296A | 1992-05-26 | |||
| JP2010183070A | 2010-08-19 |
Foreign References:
| WO2005045379A1 | 2005-05-19 |
Attorney, Agent or Firm:
Shigeki Yamakawa
Masaki Yamakawa
Masaki Yamakawa