公开(公告)号：AU2554401A

公开(公告)日：2001-07-31

申请号：AU2554401

申请日：2001-01-16

Applicant: HAMAMATSU PHOTONICS KK

Inventor： KINOSHITA MASAO ,  WATANABE HIROYUKI ,  NISHIURA RIE

IPC: H01J1/34 ,  H01J1/32 ,  H01J1/35 ,  H01J40/06 ,  H01J43/06 ,  H01J43/08 ,  H01J43/10 ,  H01J43/18

Abstract: The cathode for photo-electron emission 5 is comprised of an alkali metal containing layer 5d made of material for emitting photo-electrons by the entry of light or for emitting secondary electrons by the entry of electrons, such as particles which consist of an alkali antimony compound, on an Ni electrode substrate 5c on which an Al layer 5b is deposited, and has an intermediate layer 5a made of carbon nano-tubes between the alkali metal containing layer 5d and the Ni electrode substrate 5c, therefore the defect density inside the particles is decreased, and the recombining probability of electrons and holes drops remarkably, which improves the quantum efficiency.

公开(公告)号：EP1253614A4

公开(公告)日：2007-03-28

申请号：EP01900777

申请日：2001-01-16

Applicant: HAMAMATSU PHOTONICS KK

Inventor： KINOSHITA MASAO ,  WATANABE HIROYUKI ,  NISHIURA RIE

IPC: H01J1/34 ,  H01J43/06 ,  H01J1/32 ,  H01J1/35 ,  H01J40/06 ,  H01J43/08 ,  H01J43/10 ,  H01J43/18

CPC classification number: B82Y10/00 ,  H01J1/35 ,  H01J43/06 ,  H01J43/10 ,  H01J2201/30469 ,  H01J2201/32 ,  H01J2201/3426 ,  Y10S977/952

Abstract: A cathode (5) for emitting photoelectrons or secondary electrons comprises a nickel electrode substrate (5c) with an aluminum layer (5b) deposited on it; an intermediate layer (5a) consisting of carbon nanotubes formed on the aluminum layer; and an alkaline metal layer (5d) formed on the intermediate layer (5a) and composed, for example, of particles of an alkali antimony compound that either emits photoelectrons in response to incident light or emits secondary electrons in response to incident electrons. The decrease in defect density of the particles reduces the probability of recombination of electron and hole remarkably, thus increasing quantum efficiency.

公开(公告)号：JP2001202873A

公开(公告)日：2001-07-27

申请号：JP2000007972

申请日：2000-01-17

Applicant: HAMAMATSU PHOTONICS KK

Inventor： KINOSHITA MASAO ,  WATANABE HIROYUKI ,  NISHIURA RIE

IPC: H01J1/34 ,  H01J1/32 ,  H01J1/35 ,  H01J40/06 ,  H01J43/06 ,  H01J43/08 ,  H01J43/10 ,  H01J43/18

Abstract: PROBLEM TO BE SOLVED: To provide a cathode for photoelectron or secondary electron emission in which quantum efficiency, more particularly red color sensitivity can be improved and the spectrophoto sensitivity or secondary electron emission property can be improved. SOLUTION: In cathode 5 for photoelectron emission, a photoelectron surface 5d formed from materials such as alkali antimony compound which discharges photoelectrons by incident of light or secondary electrons by incident of electrons is provided on Ni electrode substrate 5c in which Al layer 5b is vapor deposited. An intermediate layer 5a formed from carbon nano tube is disposed between the photoelectron surface 5d and the Ni electrode substrate 5c. Therefore, defect density inside of particles is lowered and recombination ration of electron and positive hole is remarkably lowered to improve quantum efficiency.