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RESEARCH PRODUCT

Room temperature electrodeposition of photoactive Cd(OH)2 nanowires

F. Di QuartoPatrizia BocchettaMonica Santamaria

subject

Materials scienceScanning electron microscopeBand gapNanowireOxidechemistry.chemical_elementNanotechnologylcsh:Chemistrychemistry.chemical_compoundTransition metalBand gapElectrochemistryNanowiresElectrogeneration of baseCd(OH)2Settore ING-IND/23 - Chimica Fisica ApplicataChemical engineeringchemistrylcsh:Industrial electrochemistrylcsh:QD1-999Direct and indirect band gapsCrystallitenanowire band gap electrodepositionIndiumlcsh:TP250-261

description

Cd(OH)2 nanowires (NWs) were successfully prepared by room temperature electrogeneration of base using Cd(NO3)2 aqueous electrolyte and Anodic Alumina Membrane (AAM) as template. Cd(OH)2 films have been also deposited on tin-doped indium oxide (ITO) for comparison. SEM analysis shows high quality deposits made of closely packed nanowires (NWs) into AAM and uniform flake-like surface on ITO. XRD analysis reveals that Cd(OH)2 films on ITO are polycrystalline, while the nanowires grow along the preferential directions [100] and [110]. Photoelectrochemical measurements show that Cd(OH)2 NWs are photoactive materials with indirect and direct band gap of 2.15 and 2.75 eV, respectively. Keywords: Electrogeneration of base, Cd(OH)2, Nanowires, Band gap

yearjournalcountryeditionlanguage
2009-03-01
10.1016/j.elecom.2008.12.043https://hdl.handle.net/11587/374053