Abstract
Stabilization of a CdTe-based photoanode by addition of a Te/sup 2 -/ electrolyte in an electrochemical cell for the conversion of optical energy to electrical energy is reported. No photoanodic dissolution was noted in solutions containing a few hundredths molar Te/sup 2 -/. An open-circuit photopotential of up to 0.7 V was generated in the Te/sup 2 -//Te/sub 2//sup 2 -/ electrolyte. The maximum overall optical to electrical energy conversion that was measured was 10.7 percent at 633 nm, and efficiencies of 14 and 7 percent were calculated at 800 and 400 nm from wavelength response data at the same light intensity. (BLM)
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