Effect of deposition time on optostructural and photoelectrochemical properties of Cd(SSe) thin films deposited by facile route.

Sandip K. Jagadale; Popatrao N. Bhosale; Raghunath K. Mane

Volume : V, Issue : X, October - 2016

Effect of deposition time on optostructural and photoelectrochemical properties of Cd(SSe) thin films deposited by facile route.

Sandip K. Jagadale, Popatrao N. Bhosale, Raghunath K. Mane

Abstract :

In the present investigation, we have synthesized nanocrystalline cadmium sulphoselenide Cd(SSe) thin films on ultrasonically cleaned bare and FTO coated glass substrate using facile, cost effective arrested precipitation technique (APT) at different time intervals (1h,1.5h, 2h and 2.5h). The absorption spectrum shows a strong absorption in the 300–1100 nm wavelength range with band gap variation in the range of 2.05 eV to 1.87 eV. The X–ray diffraction (XRD) patterns shows nanocrystalline nature with crystallite size 58 nm to 76 nm and exhibits pure hexagonal crystal structure. The scanning electron microscopy (SEM) demonstrates formation of well adherent, pinhole free thin films with mixed nanosphere nanopetal like morphology. Energy dispersive X–ray spectroscopy (EDS) and X–ray photoelectron spectroscopy (XPS) showed that the composition of Cd(SSe) thin films is good agreement with stoichiometry. Finally these prepared thin films tested for photoelectrochemical (PEC) performance in sulphide / polysulphide electrolyte and results are promising.