CdTe semiconductor electrochemical behavior

In spite of the low electrode solar energy conversion efficiency of n-CdTe (≅0.1%) in electrochemical solar cells, interesting applicability as an electrochemical sensor is proved for rhoH and for acid-base as well as redox couples titration. The sensitivity of the CdTe sensor was found to be dependent upon the imposed bias voltage with respect to a Pt counterelectrode. Negative biases in the order of -800 mV gave high sensitivity for both potentiometric and amperometric measurements