Accession Number : ADA118249

Title :   Photoelectrochemical Cells Based on n-GaAs and the Cu(II)/Cu(I) Redox Couple in Acetonitrile.

Descriptive Note : Technical rept.,

Corporate Author : EIC LABS INC NEWTON MA

Personal Author(s) : Langmuir,Margaret E. ; Parker,Maureen A. ; Rauh,R. David

Report Date : AUG 1982

Pagination or Media Count : 20

Abstract : In acetonitrile, the potential of the Cu (II)/Cu(I) redox couple is very dependent on the coordinating strength of the anion present. In the presence of perchlorate or nitrate, the potential is not within the GaAs band gap, and the redox couple does not stabilize GaAs with respect to photodecomposition. Chloride ion, which coordinates with both cations, shifts the potential within the band gap and stabilization of the semiconductor can be obtained. (Author)

Descriptors :   *Electrolytic cells, *Photochemical reactions, *Gallium arsenides, *Copper, Electrochemistry, Acetonitrile, Reduction(Chemistry), Solvents, Stabilization, N type semiconductors, Anions, Perchlorates, Nitrates

Subject Categories : Physical Chemistry
      Radiation and Nuclear Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE