Accession Number : ADA118268

Title :   Laser Spot Scanning of Photoelectrochemical Cells.

Descriptive Note : Technical rept.,

Corporate Author : EIC LABS INC NEWTON MA

Personal Author(s) : Langmuir,Margaret E ; Micheels,Ronald H ; Boudreau,Robert A ; Rauh,R David

PDF Url : ADA118268

Report Date : Aug 1982

Pagination or Media Count : 18

Abstract : Laser scanning of the photoelectrode in a photoelectrochemical cell is a powerful diagnostic tool for assessing the effect of surface modifications of the semiconductor electrode on cell performance. Photocurrent scan maps of photoelectrodes with external and/or white light bias allow the study of the effect of iR losses in the cell under operating conditions. A dye laser adds versatility to the system by permitting wavelength dependent responses to be mapped. The possibility of time resolved measurements, using a pulsed laser source, is also discussed. (Author)

Descriptors :   *Laser beams, *Electrolytic cells, *Photochemical reactions, *Optical scanning, Photoelectric cells(Semiconductor), Dye lasers, Electrodes, Semiconductor devices, Diagnostic equipment, Pulsed lasers, White light, Bias

Subject Categories : Physical Chemistry
      Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE