Effects of Temperature on Excited-State Descriptions of Luminescent Photoelectrochemical Cells Employing Tellurium-Doped Cadmium Sulfide Electrodes.
Abstract
The need for alternate energy sources has led to the rapid development of photoelectrochemical cells (PECs). A PEC consisting of an n-type semiconductor, a counterelectrode, and a suitably chosen electrolyte can convert optical energy directly into chemical fuels and/or electricity (1,2,3,4). We recently reported that tellurium-doped CdS (CdS:Te) mimics undoped CdS in its ability to sustain the conversion of monochromatic ultraband gap light (> or about = 2.4 eV; lambda < or about = 500 nm (5)) into electricity at about 7% efficiency in PECs employing aqueous polychalcogenide electrolytes (6,7,8,9). A novel feature of the CdS:Te photoanodes is that they emit lambda sub max about 600 nm for 100 ppm CdS:Te) with about 0.1% efficiency while effecting the oxidation of polychalcogenide species.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 06, 1981
- Accession Number
- ADA107840
Entities
People
- Arthur B. Ellis
- Bradley R. Karas