Sequential electro-deposition of Bi2S3/CdS films as co-sensitizer photoanodes for liquid junction solar cell

Abstract In this investigation multilayered conjugate films are formulated with Bi 2 S 3 and CdS nano particles (NPs) on FTO glass substrate. Thin layer Bi 2 S 3 was deposited and subsequently covered with various levels of CdS coating. Optical properties and XRD analysis of the films show existence of both the compound phases. The morphology of the films studied through electron microscopy reveals coverage of spherical CdS NPs on the network of Bi 2 S 3 NPs. The electrochemical impedance records and performances output characteristics of the n -type films show that the most efficient co-sensitizer matrix is produced with deep coating of CdS on thin layer of Bi 2 S 3 .