Fabrication of GaAs/GaAsP superlattice photocathode

Physics

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Electron Sources, Polarized Beams, Photomultipliers, Phototubes And Photocathodes, Relativistic Electron And Positron Beams

Scientific paper

Several samples of GaAs/GaAsP superlattice were fabricated using a method of the Metalorganic Chemical Vapor Deposition (MOCVD) growth for the purpose of investigating various properties as a photocathode of spin-polarized electron sources. The MOCVD growth is easy to control in comparison with the Molecular Beam Epitaxial (MBE) growth in the fabrication procedure of the GaAs/GaAsP superlattices. We used Tertiarybutylarsine (TBAs) and Tertiarybutylphophine (TBP) as V-group sources to make the samples. It is for this reason that the toxicity of TBAs and TBP is lower than that of arsine (AsH3) and phosphine (PH3) which are commonly used, and the pyrolysis temperature for TBAs and TBP is lower than that for AsH3 and PH3 [1]. A large spin-polarization exceeding 90% was observed using the sample made in this method. We also obtained large quantum efficiencies of approximately 0.4% in the wavelength range from 760 nm to 780 nm. .

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Fabrication of GaAs/GaAsP superlattice photocathode does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Fabrication of GaAs/GaAsP superlattice photocathode, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fabrication of GaAs/GaAsP superlattice photocathode will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1581670

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.