Characterization and photoelectrochemical properties of CICS thin films grown via an electrodeposition route

Abstract

In this work, cerium doped CuInS2 (CIS) polycrystalline thin films with different Ce content are firstly synthesized on indium doped tin oxide (ITO) glass via a low-cost electrochemical technique.

Crystallography characteristics of tetragonal nano-zirconia films under various oxygen partial pressure

“…The growth mechanisms involved in dislocation require extra attention [18]. Dislocation density defined as the length of dislocation lines per unit volume of the crystal is expressed with the help of Williamson and Smallman's equation [19]: where D is the crystallite size. The Wilson method was employed to compute the maximum or upper-limit , and root-mean-square (RMS) microstrains along the crystallographic directions using the following relations [12]: where d and are the strained and unstrained lattice space, respectively.…”

“…The growth mechanisms involved in dislocation require extra attention [18]. Dislocation density (d) defined as the length of dislocation lines per unit volume of the crystal is expressed with the help of Williamson and Smallman's equation [19]:…”

Photocatalytic and Photoelectrochemical Hydrogen Evolution from Water over Cu2SnxGe1–xS3 Particles

“…These materials exhibit intense visible light absorption, bandgap energy levels that can be tuned by adjusting the composition, band structures suitable for water reduction, and relatively high photocatalytic and PEC performances. − As an example, a polycrystalline CIGS thin film photocathode prepared by vacuum coevaporation recently showed a half-cell (HC) STH efficiency of 12.5% at 0.53 V vs a reversible hydrogen electrode (V RHE ) . Highly efficient CIGS or CZTS thin films as photovoltaics or hydrogen-evolving photocathodes can also be synthesized via electrodeposition or spray-coating of precursors and subsequent sulfurization, without using high-vacuum equipment. − More importantly, particulate CIGS- or CZTS-based materials can be employed to promote the photocatalytic or PEC evolution of hydrogen from water. − ,, A two-electrode PEC cell consisting of a particulate CIGS-based photocathode and a BiVO 4 photoanode have been reported to provide an overall STH efficiency as high as 1.1% . Z-scheme overall water splitting systems can also be constructed by using the appropriate particulate photocatalysts, such as CIGS-based hydrogen evolution photocatalysts ((CuGa) 0.5 ZnS 2 ) and BiVO 4 -based oxygen evolution photocatalysts, combined with reduced graphene oxide as an electron mediator .…”

Iron Doped CdSe Films with Improved Photosensitivity and Stability for Use in a Liquid Junction Solar Cell

“…The CdFeSe composite band gap can be tuned by means of compositional variation, in the energy range 1.23 (FeSe) to 1.72 eV (CdSe), covering the essential part of the visible spectrum. The electrodeposition technique has gained popularity for the growth of elementary as well as multielemental thin films for energy of applications. − The present study also involves electro-co-deposition of Fe, Cd chalcogenide nanoparticles (NPs) using respective precursors in the electrolytic bath. Thanikaikarasan et al reported high-temperature synthesis of CdSe:Fe films on ITO glass and for which 38% fill factor (FF) and 2.21% conversion efficiency were found using a tungsten filament (150 W) lamp as light source.…”