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Browsing by Author "Dalchiele E.A."

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An electrochemical deposition route for obtaining α- Fe 2O3 thin films: II. EQCM study and semiconductor properties

Schrebler R.; Llewelyn C.; Vera F.; Cury P.; Munoz E.; Del Rio R.; Gomez Meier H.; Cordova R.; Dalchiele E.A. (2014-04-04)

The electrochemical formation of hematite (α- Fe2 O3) precursor thin films (oxyhydroxide iron compounds), onto gold substrates in an aqueous solution of Fe(III)+KF+ H2 O2 was investigated in situ using an electrochemical ...
An electrochemical deposition route for obtaining α-Fe 2O3 thin films

Schrebler R.; Bello K.; Vera F.; Cury P.; Munoz E.; Del Rio R.; Gomez Meier H.; Cordova R.; Dalchiele E.A. (2014-04-04)

Electrochemical deposition of hematite (α- Fe2 O3) thin films was investigated on SnO2: F covered glass substrates. A new electrochemical method to obtain hematite thin films through a potential cycling procedure in an ...
Electrochemically grown vertically aligned ZnO nanorod array/p +-Si (100) heterojunction contact diodes

Rodriguez-Moreno J.; Navarrete-Astorga E.; Romero R.; Martin F.; Schrebler R.; Ramos-Barrado J.R.; Dalchiele E.A. (2014-04-04)

ZnO nanorod array/p+-Si vertical heterojunction diodes, in which the ZnO nanorods have been grown by electrodeposition onto a SnO2:F thin film/glass substrate, have been fabricated by the direct-bonding technique. The ...
Electrodeposition of In2O3 thin films from a dimethylsulfoxide based electrolytic solution

Henriquez R.; Munoz E.; Dalchiele E.A.; Marotti R.E.; Martin F.; Leinen D.; Ramos-Barrado J.R.; Gomez H. (2014-04-04)

Indium (III) oxide (In2O3) thin films have been obtained after heat treatment of In(OH)3 precursor layers grown by a potential cycling electrodeposition (PCED) method from a dimethylsulfoxide (DMSO) based electrolytic ...
Electrodeposition of nanocrystalline CdSe thin films from dimethyl sulfoxide solution: Nucleation and growth mechanism, structural and optical studies

Henriquez R.; Badan A.; Grez P.; Munoz E.; Vera J.; Dalchiele E.A.; Marotti R.E.; Gomez H. (2014-04-04)

Cadmium selenide (CdSe) nanocrystalline semiconductor thin films have been synthesized by electrodeposition at controlled potential based in the electrochemical reduction process of molecular selenium in dimethyl sulfoxide ...
Electrodeposition of nanostructured ZnO thin films from dimethylsulfoxide solution: Effect of temperatures on the morphological and optical properties

Tello A.; Gomez H.; Munoz E.; Riveros G.; Pereyra C.J.; Dalchiele E.A.; Marottic R.E. (2014-04-04)

The effects of bath temperature on the electrodeposition of zinc oxide (ZnO) thin films from zinc perchlorate and molecular oxygen, dissolved in dimethylsulfoxide, are reported. The obtained films were highly compact and ...
Electrodeposition of polyphasic films of zinc oxi sulfide from DMSO onto n-InP(100) and n-InP(111) single crystals in the presence of zinc salt, thiourea, and dissolved molecular oxygen

Henriquez R.; Froment M.; Riveros G.; Dalchiele E.A.; Gomez H.; Grez P.; Lincot D. (2014-04-04)

In the present work, we studied the electrodeposition of zinc oxide sulfide films onto monocrystalline n-InP-(111) and (100) substrates starting from the combined reduction of thiourea, as a sulfide ion source, and molecular ...
Growth of epitaxial zinc oxide thin films onto gallium nitride by electrodeposition from a dimethylsulfoxide based electrolytic solution

Gomez H.; Cantillana S.; Riveros G.; Favre S.; Pereyra C.J.; Ariosa D.; Marotti R.E.; Dalchiele E.A. (2014-04-04)

Zinc oxide films have been electrochemically grown on gallium nitride substrates from an electrolytic bath composed of a zinc salt and oxygen dissolved in dimethylsulfoxide (DMSO). The XRD structural study showed the ...
The influence of different electrodeposition E/t programs on the photoelectrochemical properties of α-Fe2O3 thin films

Schrebler R.S.; Altamirano H.; Grez P.; Herrera F.V.; Munoz E.C.; Ballesteros L.A.; Cordova R.A.; Gomez H.; Dalchiele E.A. (2014-04-04)

In this work morphological, structural and photoelectrochemical properties of n-type α-Fe2O3 (hematite) thin films synthetized by means of two different electrochemical procedures: potential cycling electrodeposition (PC) ...
The influence of poly(ethylene oxide) and illumination on the copper electrodeposition process onto n-Si(100)

Munoz E.C.; Schrebler R.S.; Cury P.K.; Suarez C.A.; Cordova R.A.; Gomez C.H.; Marotti R.E.; Dalchiele E.A. (2014-04-04)

In this study, we examined the influence of illumination and the presence of poly(ethylene oxide) (PEO) as an additive for the copper electrodeposition process onto n-Si(100). The study was carried out by means of cyclic ...
Influence of poly(ethylene oxide) on the process of copper electrodeposition onto p-Si(100)

Munoz E.C.; Schrebler R.S.; Cordova R.A.; Marotti R.E.; Dalchiele E.A. (2014-04-04)

In this study we examined the influence of the illumination intensity and the presence of poly(ethylene oxide) (PEO) as an additive for the process of copper electrodeposition onto p-Si(100). The study was carried out by ...
Morphological and structural control of electrodeposited ZnO thin films and its influence on the photocatalytic degradation of methyl orange dye

Catano F.A.; Gomez H.; Dalchiele E.A.; Marotti R.E. (2014-04-04)

The electrochemical synthesis, the structural, morphological and optical characterization together with the photocatalytic activity of nanostructured ZnO films prepared from zinc nitrate aqueous solutions is reported. ...
Optical properties of CdSe and CdO thin films electrochemically prepared

Henriquez R.; Grez P.; Munoz E.; Gomez H.; Badan J.A.; Marotti R.E.; Dalchiele E.A. (2014-04-04)

The present work comparatively studies the optical properties of CdO against CdSe samples potentiostatically electrodeposited onto fluorine-doped tin oxide/glasses (FTO). The films were prepared by electrochemical reduction ...
Photoelectrochemical and optical characterization of Prussian blue onto p-Si(100)

Munoz E.C.; Henriquez R.G.; Cordova R.A.; Schrebler R.S.; Cisternas R.; Ballesteros L.; Marotti R.E.; Dalchiele E.A. (2014-04-04)

In this study, we examined the characterization of Prussian blue deposited onto p-Si(100). A cyclic voltammetry analysis was carried out under illumination showing quasireversibility responses of high and low-spin iron ...
Preparation and photoelectrochemical characterization of porphyrin-sensitized α -Fe2 O3 thin films

Herrera F.V.; Grez P.; Schrebler R.; Ballesteros L.A.; Muoz E.; Cordova R.; Altamirano H.; Dalchiele E.A. (2014-04-04)

The photoelectrochemical response of electrodeposited hematite (α -Fe2 O3) thin films, whose surface has been sensitized by the adsorption of 5,10,15,20-tetrakis(4-carboxyphenyl)porphyrin (TCPP), was studied. The α -Fe2 ...
Reduction mechanism of O2 in DMSO and metal oxide thin film formation: CdO case study

Henriquez R.; Grez P.; Muoz E.; Dalchiele E.A.; Marotti R.; Gomez H. (2014-04-04)

The electrochemical reduction of O2 in a dimethyl sulfoxide (DMSO) solution onto a glassy carbon substrate at 423 K has been studied. Electrochemical potentiodynamic studies show that the reduction process is controlled ...
Semitransparent ZnO/poly(3,4-ethylenedioxythiophene) based hybrid inorganic/organic heterojunction thin film diodes prepared by combined radio-frequency magnetron-sputtering and electrodeposition techniques

Rodriguez-Moreno J.; Navarrete-Astorga E.; Martin F.; Schrebler R.; Ramos-Barrado J.R.; Dalchiele E.A. (2014-04-04)

n-ZnO/p-poly(3,4-ethylenedioxythiophene) (PEDOT) semitransparent inorganic-organic hybrid vertical heterojunction thin film diodes have been fabricated with PEDOT and ZnO thin films grown by electrodeposition and radio-frequency ...
Single-Crystal growth of nickel nanowires: Influence of deposition conditions on structural and magnetic properties

Cortes A.; Riveras G.; Palma J.L.; Denardin J.C.; Marotti R.E.; Dalchiele E.A.; Gomez H. (2014-04-04)

This paper examines the influence of electrodeposition potential, pore size, pH, composition, and temperature of the electrolytic bath on the structure of nickel nanowires arrays electrodeposited into anodic alumina oxide ...
Structural and semiconducting properties of ZnTe thin films galvanostatically grown onto monocrystalline InP substrate from TeCL 4/DMSO solution

Grez P.; Henriquez R.; Dalchiele E.A.; Gomez H. (2014-04-04)

ZnTe thin films were galvanostatically electrodeposited onto (100) InP substrates from an electrolytic solution containing TeCl4 dissolved in DMSO. Cyclic voltammetry in the dark was used to identify the process involved ...
Study of phenol photodegradation with TiO2/-WO3 coupled semiconductors activated by visible light

Gomez H.; Orellana F.; Lizama H.; Mansilla H.D.; Dalchiele E.A. (2014-04-04)

The photo-degradation of phenol was studied employing the TiO 2/WO3 semiconductors coupled, activated with visible light.Results show that the photo-degradation efficiency depends on the mixture composition. The best ...

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