Abstract

A combination of picosecond photoluminescence and electrochemical studies reveals information about the GaAs/methanol interface. The electrochemistry occurring at the solid/nonaqueous liquid junction is found to have a strong influence on the observed photoluminescence as seen by photoluminescence vs voltage (PL−V) scans and by trends in the time-resolved photoluminescence decays. The effect of corrosion of the cell on the PL−V profile is examined in detail. It is found that the inclusion of the redox couple gives some protection from corrosion, but the addition of a small amount of water to the nonaqueous cell gives even more. Further water additions lead the cell back to a state that is conducive to corrosion and eventually leads to Fermi level pinning of the GaAs.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.