Ti or Ni metals - used conventionally as substrates - were substituted with Cd metal to improve the output characteristics and the reproducibility of the CdSe/CdS PEC (photoelectrochemical converter - photoelectrochemical solar cell). This approach proved valid and the following mean results were obtained: light to electric energy efficiency - Ca. 4.5% filling factor - approx. 0.37, open-circuit voltage - around 500 mV and short-circuited current density-about 35 mA/cm(2) at light illumination intensity of 70 mW/cm(2).