Effect of enhancement of selenium content in zirconium sulphoselenide on its photoelectrochemical behaviour

摘要

In this paper, we have attempted to fabricate PEC solar cells with mixedcrystals of Zirconium sulphoselenide. Energy band location and redox analysis of thematerial have been made using Mott-Schottky plots. These studies justify theselection of an appropriate electrolyte for PEC work. Various solar cells fabricatedwith single crystals of selenium rich and selenium deficient zirconiumsulphoselenide have been prepared. The solar cell parameters e.g. the fill factor(FF), open circuit voltage (Voc), short circuit current (Isc) and efficiency (.) forall the different cells have been determined. In order to see the effect ofenhancement of selenium in ZrS on photoresponse, the electrolyte and intensity ofillumination were kept constant and all the electrodesxSe2-xwere prepared from crystals showing absolutely plane faces obtained through the actof cleavage with the help of an adhesive tape. The results have been thoroughlyanalysed and the implications have been discussed.