Transmission mode photocathode sensitive to ultravoilet light

Details Transmission mode photocathode sensitive to ultravoilet light Transmission mode photocathode sensitive to ultravoilet light

1994-07-28

1996-09-17

Patel, Nimeshkumar D.

Electric lamp and discharge devices

Photosensitive

Photocathode

313539, 313543, 313544, 257 10, 257 11, 257431, H01J 3150

Patent

active

055571670

ABSTRACT:
A photocathode which is responsive to ultraviolet light to release photoelectrons includes a supportive window layer of sapphire and a single-crystal active layer of AlGaN. Interposed between the window layer and the active layer is an interface layer which insures a low population density of crystalline defects at the interface of the interface layer with the active layer and in the active layer itself. Consequently, the photocathode is an effective emitter of photoelectrons in the transmission mode.

REFERENCES:
patent: 4286373 (1981-09-01), Gutirrez et al.
patent: 4616248 (1986-10-01), Khan et al.
patent: 5268570 (1993-12-01), Kim et al.

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