Comparative study of Sb2S3, Bi2S3 and In2S3 thin film deposition on TiO2 by successive ionic layer adsorption and reaction (SILAR) method

Huerta-Flores, Ali M.; García-Gómez, Nora A.; Parra, Salomé M. de la; Sánchez, E.

doi:10.1016/j.mssp.2015.03.044

Cited by 25 publications

(7 citation statements)

References 29 publications

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“…Currently, the development of high efficiency photovoltaic and photoelectrochemical devices at low cost and moderate toxicity is extremely important for use on a large scale. , TiO 2 is the most studied material for these devices since 1972, when Fujishima and Honda demonstrated the photoelectrochemical properties of TiO 2 . Due to its excellent properties, like low cost and good chemical and photocorrosion stability, TiO 2 is described as an excellent candidate for photovoltaic applications .…”

Section: Introductionmentioning

confidence: 99%

Enhanced Visible-Light Photoelectrochemical Conversion on TiO₂ Nanotubes with Bi₂S₃ Quantum Dots Obtained by in Situ Electrochemical Method

Freitas

González-Moya

Soares

et al. 2018

ACS Appl. Energy Mater.

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A new greener strategy to incorporate Bi 2 S 3mercaptopropionic acid (MPA) quantum dots (QDs) onto TiO 2 nanotube (NT) films was developed, using in situ electrochemical synthesis with a graphite/sulfur powder macroelectrode (cathode) and cavity cell. Simultaneously, the obtained QDs were adsorbed on TiO 2 NTs, for the photoelectrochemical cell (PEC) assays. After the electrochemical synthesis, different thermal post-treatments were performed for growth and crystallization of obtained nanocrystals. The obtained TiO 2 −Bi 2 S 3 nanostructured composites were characterized by UV−vis, diffuse reflectance spectroscopy, X-ray diffraction, scanning electron microscopy and transmission electron microscopy. Photoelectrochemical tests were carried out, where TiO 2 NTs/Bi 2 S 3 QDs with 15 min post-treatment at 90 °C presented a greater photocurrent density, when irradiated with visible light (427−655 nm region, 10 mW.cm −2 ) and compared to pristine TiO 2 NTs. Such performance can be attributed to the synergetic effect caused by the good interface between TiO 2 NTs/Bi 2 S 3 QDs, promoted by the electrochemical method of synthesis employed. The proof of concept evidenced in this work can be potentially extended for the sensitization of TiO 2 NTs with other semiconductors for PEC hydrogen generation and solar cell applications.

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Section: Introductionmentioning

confidence: 99%

Enhanced Visible-Light Photoelectrochemical Conversion on TiO₂ Nanotubes with Bi₂S₃ Quantum Dots Obtained by in Situ Electrochemical Method

Freitas

González-Moya

Soares

et al. 2018

ACS Appl. Energy Mater.

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“…Among them, the SILAR technology is the simplest and the most economical one, which can directly connect QDs with TiO 2 NTAs. This technique is an improved method of the chemical bath disposition method allowing uniform thin layers to be deposited at room temperature and atmospheric pressure [29].…”

Section: Introductionmentioning

confidence: 99%

A highly efficient In₂S₃/Ag₂S/TiO₂ NTAs photoelectrodes for photocathodic protection of Q235 carbon steel under visible light

Li¹,

Yang²,

Cui³

et al. 2022

Nanotechnology

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A novel In2S3/Ag2S/TiO2 nanotube arrays (NTAs) was successfully fabricated by successive ionic layer adsorption and reaction (SILAR) method and electrochemical anodic oxidation method, and served as photoanode for photocathodic protection application. The micromorphologies, optical absorption properties, crystalline structure and elemental valence states of the composites were performed by field emission scanning electron microscopy, high resolution transmission electron microscope, UV−vis diffuse reflectance absorption spectra, X-ray diffractometer and X-ray photoelectron spectroscopy, respectively. The photocathodic protection performances of In2S3/Ag2S/TiO2 NTAs on the Q235 carbon steel (CS) were also studied. The In2S3/Ag2S/TiO2 nanocomposites show better photoelectrocatalytic and photocathodic protection performance than pure TiO2 NTAs. The photocurrent density of In2S3(9)/Ag2S(8)/TiO2 photoelectrode coupled with Q235 CS reach 211 μA cm−2, which is about 4.5 times higher than that of TiO2 NTAs. The photogenerated potential of Q235 CS coupled to In2S3(9)/Ag2S(8)/TiO2 under illumination shows a negative shift to −0.92 V vs. SCE. Results indicate that the co-sensitization of In2S3 and Ag2S could extend the light absorption of TiO2 to the visible light range and enhance its photoelectric conversion efficiency.microscope, UV−vis diffuse reflectance absorption spectra, X-ray diffractometer and X-ray photoelectron spectroscopy, respectively. The photocathodic protection performances of In2S3/Ag2S/TiO2 NTAs on the Q235 carbon steel (CS) were also studied. The In2S3/Ag2S/TiO2 nanocomposites show better photoelectrocatalytic and photocathodic protection performance than pure TiO2 NTAs. The photocurrent density of In2S3(9)/Ag2S(8)/TiO2 photoelectrode coupled with Q235 CS reach 211 μA cm−2, which is about 4.5 times higher than that of TiO2 NTAs. The photogenerated potential of Q235 CS coupled to In2S3(9)/Ag2S(8)/TiO2 under illumination shows a negative shift to −0.92 V vs. SCE. Results indicate that the co-sensitization of In2S3 and Ag2S could extend the light absorption of TiO2 to the visible light range and enhance its photoelectric conversion efficiency.

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“…Binary metal chalcogenides of the type A 2 B 3 (A = As, Sb, Bi; B = S, Se, Te) have recently attracted great attention due to their unique optical and electronic properties. , Amongst the metal chalcogenides, metal sulfide nanoparticles are widely known for their potential application as energy conversion materials. , Sulfides such as Bi 2 S 3 and Sb 2 S 3 are one of the most important V–VI semiconductor nanoparticles and have great prospects in photocatalysis, light-emitting diodes, solar cell devices, biomedical probes, laser materials, photoluminescence (PL), and optoelectronic materials. , Both semiconductors have an orthorhombic system, which could be considered as an appropriate candidate for electrochemical and photovoltaic applications owing to their suitable optical properties such as band gaps (1.3 eV for Bi 2 S 3 and 1.74 eV for Sb 2 S 3 ), high stability, and absorption coefficients. , The low band gap, good ion conductivity, and redox chemistry character of these nanoparticles have made them attractive materials for various applications in a wide range of solar energy spectrum. In addition, they both have high photosensitivity, nontoxic nature, low cost, and their environmental friendliness make them superior materials compared to other semiconductors such as CdS and PbS , from the application point of view.…”

Section: Introductionmentioning

confidence: 99%

Microwave-Assisted Synthesis of Bi₂S₃ and Sb₂S₃ Nanoparticles and Their Photoelectrochemical Properties

2021

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Bi2S3 and Sb2S3 nanoparticles were prepared by microwave irradiation of single-source precursor complexes in the presence of ethylene glycol as a coordinating solvent. The as-synthesized nanoparticles were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM) coupled with energy-dispersive X-ray (EDX), photoluminescence (PL), and UV–vis near-infrared (NIR) spectroscopy. Their electrochemical potential was examined in [Fe(CN)]4–/[Fe(CN)]3– by cyclic and square wave voltammetry (CV and SWV) and electrochemical impedance spectroscopy (EIS). GCEBi2S3 and GCESb2S3 exhibit promising electrochemical performance and a higher specific capacitance of about 700–800 F/g in [Fe(CN)]4–/[Fe(CN)]3. Thin films of Bi2S3 and Sb2S3 were successfully incorporated in the fabrication of solar cell devices. The fabricated device using Bi2S3 (under 100 mW/cm2) showed a power conversion efficiency (PCE) of 0.39%, with a V oc of 0.96 V, a J sc of 0.00228 mA/cm2, and an FF of 44%. In addition, the device exhibits nonlinear current density–voltage characteristics, indicating that Bi2S3 was experiencing a Schottky contact. The Sb2S3-based solar cell device showed no connection in the dark and under illumination. Therefore, no efficiency was recorded for the device using Sb2S3, which indicated the ohmic nature of the film. This might be due to the current leakage caused by poor coverage. The nanoparticles were found to induce similar responses to the conventional semiconductor nanomaterials in relation to photoelectrochemistry. The present study indicates that Bi2S3 and Sb2S3 nanoparticles are promising semiconductor materials for developing optoelectronic and electrochemical devices as the films experience Schottky and Ohmic contacts.

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Comparative study of Sb2S3, Bi2S3 and In2S3 thin film deposition on TiO2 by successive ionic layer adsorption and reaction (SILAR) method

Cited by 25 publications

References 29 publications

Enhanced Visible-Light Photoelectrochemical Conversion on TiO₂ Nanotubes with Bi₂S₃ Quantum Dots Obtained by in Situ Electrochemical Method

Enhanced Visible-Light Photoelectrochemical Conversion on TiO₂ Nanotubes with Bi₂S₃ Quantum Dots Obtained by in Situ Electrochemical Method

A highly efficient In₂S₃/Ag₂S/TiO₂ NTAs photoelectrodes for photocathodic protection of Q235 carbon steel under visible light

Microwave-Assisted Synthesis of Bi₂S₃ and Sb₂S₃ Nanoparticles and Their Photoelectrochemical Properties

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Comparative study of Sb2S3, Bi2S3 and In2S3 thin film deposition on TiO2 by successive ionic layer adsorption and reaction (SILAR) method

Cited by 25 publications

References 29 publications

Enhanced Visible-Light Photoelectrochemical Conversion on TiO2 Nanotubes with Bi2S3 Quantum Dots Obtained by in Situ Electrochemical Method

Enhanced Visible-Light Photoelectrochemical Conversion on TiO2 Nanotubes with Bi2S3 Quantum Dots Obtained by in Situ Electrochemical Method

A highly efficient In2S3/Ag2S/TiO2 NTAs photoelectrodes for photocathodic protection of Q235 carbon steel under visible light

Microwave-Assisted Synthesis of Bi2S3 and Sb2S3 Nanoparticles and Their Photoelectrochemical Properties

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Product

Resources

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Enhanced Visible-Light Photoelectrochemical Conversion on TiO₂ Nanotubes with Bi₂S₃ Quantum Dots Obtained by in Situ Electrochemical Method

Enhanced Visible-Light Photoelectrochemical Conversion on TiO₂ Nanotubes with Bi₂S₃ Quantum Dots Obtained by in Situ Electrochemical Method

A highly efficient In₂S₃/Ag₂S/TiO₂ NTAs photoelectrodes for photocathodic protection of Q235 carbon steel under visible light

Microwave-Assisted Synthesis of Bi₂S₃ and Sb₂S₃ Nanoparticles and Their Photoelectrochemical Properties