title: PbS quantum dot sensitized anatase TiO2 nanocorals for quantum dot-sensitized solar cell applications.
abstract: Lead sulphide (PbS) quantum dot (QD) sensitized anatase TiO(2) nanocorals (TNC) were synthesized by SILAR and hydrothermal techniques. The TNC, PbS and PbS-TNC samples were characterized by optical absorption, XRD, FT-IR, FESEM and XPS. The results show that PbS QDs are coated on the TNCs, the optical absorption is found to be enhanced and the band edge is shifted to ~693 nm as compared with plain TNCs at 340 nm. The PbS-TNC sample exhibits an improved photoelectrochemical performance with a maximum short circuit current (J(sc)) of 3.84 mA cm(-2). The photocurrent density was found to be enhanced 2 fold, as compared with those of the bare PbS photoelectrode. The total power conversion efficiency of the PbS-TNC electrodes is 1.23%.
authors.affiliation: Thin Film Materials Laboratory, Dept. of Physics, Shivaji University, Kolhapur, 416004, India.
authors.forename: Sawanta S
authors.initials: SS
authors.lastname: Mali
authors.forename: Shital K
authors.initials: SK
authors.lastname: Desai
authors.forename: Smita S
authors.initials: SS
authors.lastname: Kalagi
authors.forename: Chirayath A
authors.initials: CA
authors.lastname: Betty
authors.forename: Popatrao N
authors.initials: PN
authors.lastname: Bhosale
authors.forename: Rupesh S
authors.initials: RS
authors.lastname: Devan
authors.forename: Yuan-Ron R
authors.initials: YR
authors.lastname: Ma
authors.forename: Pramod S
authors.initials: PS
authors.lastname: Patil