Photo-electrochemical impedance spectroscopy analysis of hydrothermally synthesized β-In2S3 thin film photo-anodes

Jrad, Fatma; Naceur, J. Ben; Ouertani, Rachid; Chtourou, R.

doi:10.1016/j.physe.2019.113585

Cited by 14 publications

(5 citation statements)

References 28 publications

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“…Variety of β-In 2 S 3 nanostructures can be produced by various methods such as hydrothermal [39,66], solvothermal [40], organic solution pyrolysis [67], electrodeposition [68], chemical bath deposition [54], ion exchange and sulfuration [69,70], successive ionic layer adsorption and reaction (SILAR) [71], physical vapor deposition (PVD) [58,72], and chemical vapor deposition (CVD) [37]. It is crucial to choose the appropriate synthesis methods and parameters because the physical and chemical properties of the material are different depending on its phase and morphology.…”

Section: Synthesis Methods For β-In 2 S Nanostructuresmentioning

confidence: 99%

β-In2S3 as Water Splitting Photoanodes: Promise and Challenges

Lee

Jang

2021

Electron. Mater. Lett.

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As the interest in sustainable energy production increases, water splitting through semiconductor materials to convert solar energy directly to hydrogen energy has been extensively reported to date. Recently, the III-VI group chalcogenide semiconductors have received great attention for narrow-gap photoelectrochemical (PEC) water splitting electrodes. Among the metal sulfides, beta indium sulfide (β-In 2 S 3 ) shows remarkable properties for photoelectrodes such as high photoelectric sensitivity, high photoconductivity, large photoelectric conversion yield, low toxicity, high absorption coefficient, efficient charge separation, moderate charge transport, appropriate band position, and narrow band gap. Most of its unique properties come from the defective spinel crystal structure. Despite the superior advantages, there is a serious problem of photocorrosion induced by accumulated holes on the surface of the electrodes during the photocatalytic reaction under illumination which reduces the PEC properties. Herein, we review overall physicochemical and optoelectronic properties of β-In 2 S 3 , regardless of pros and cons, followed by the discussion of assorted strategies to further improve the PEC activities.

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Section: Synthesis Methods For β-In 2 S Nanostructuresmentioning

confidence: 99%

β-In2S3 as Water Splitting Photoanodes: Promise and Challenges

Lee

Jang

2021

Electron. Mater. Lett.

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“…Here in plasma treated In 2 S 3 films, the GIXD patterns resemble the same as annealed films but interestingly a small peak of (110) plane related to elemental indium (In) (JCPDS 05-0642) was observed, which supports the presence of metallic indium nanoparticles over In 2 S 3 layers as mentioned in the above SEM analysis. In literature, Fu et al [21] and other research groups [22][23][24][25] observed and reported the benefits of cubic β-In 2 S 3 phase rather than tetragonal β-In 2 S 3 phase for hydrogen production and stated that the cubic β-In 2 S 3 phase has stable photocatalytic activity. The Raman spectra of In 2 S 3 films before and after plasma treatment are presented and compared in figure 5.…”

Section: Structural Studiesmentioning

confidence: 99%

Effect of Ar-plasma treatment and annealing on thermally evaporated β-In₂S₃ thin films

Rasool¹,

Saritha²,

Reddy³

et al. 2023

Adv. Nat. Sci: Nanosci. Nanotechnol.

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In the present study, the effect of annealing and Ar-plasma treatment on structural, morphological and optical properties of thermally evaporated β-In2S3 thin films has been investigated. During Ar-plasma treatment, some interesting results were observed that an array of metallic indium nanostructures was formed over In2S3 film surface with quasi-spherical or spread droplet shapes of an average size of 20–100 nm in the lateral direction and a height of less than 70 nm. Here, the Ar-plasma treatment serves as a new strategy for the self-formation of metallic indium nanostructures over the film surface. Further, the optical absorption of In2S3 films has been enhanced from 104 to 107 cm−1 while the optical band gap energy decreased from 2.71 eV to 2.50 eV after Ar-plasma treatment. The metallic nanostructures loaded on semiconductor surface can act as an electron trap that can effectively prevent the recombination of photo-generated electron-hole pairs.

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“…In previous studies, cadmium was substituted by indium, which is a safe material for photovoltaic (PV) applications, indium was chosen because it is capable of maintaining the performance of photovoltaic cells [3]. At room temperature, In2S3 in Group III-VI at atmospheric pressure crystallizes into three forms (α, β, γ), and β-In2S3 is its most stable form with a tetragonal or cubic crystal structure [4]. Moreover, it is an ntype semi-conductive chalcogenide characterized by a convenient band gap and has low toxicity.…”

Section: Introductionmentioning

confidence: 99%

The Synthesis and the effect of Cu on optoelectronic qualities of β-In2S3 as a window layer for CIGS thin film solar cells

Alamoudi¹,

Timoumi

2022

Preprint

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In this paper, the vacuum thermal evaporation technique was used to investigate β-In2S3 doped with copper (Cu) as window layer thin film for solar cells. For various Cu doping levels, the characteristics of the thin films were studied utilizing structural, morphological, and optical characterization techniques, as well as dielectric testing. The research included X-ray diffraction (XRD), atomic force microscopy (AFM), scanning electron microscopy (SEM), Raman spectroscopy, and energy-dispersive X-ray spectroscopy (EDS), Infrared analysis (FTIR), XPS, Ellipsometry and UV-NIR spectroscopy. The measurements demonstrated that the real and imaginary isolation constants were over the wavelength range and successfully estimated the Urbach energy (Eu) and band gap energy. Moreover, employing the Wemple-Didomenico model helped uncover the Cauchy coefficients’ refractive index and the dispersion and oscillation energies. Therefore, the results presented in this paper show that the use of Cu-In2S3 for perovskite cells offers a high-efficiency alternative in the solar energy field.

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Photo-electrochemical impedance spectroscopy analysis of hydrothermally synthesized β-In2S3 thin film photo-anodes

Cited by 14 publications

References 28 publications

β-In2S3 as Water Splitting Photoanodes: Promise and Challenges

β-In2S3 as Water Splitting Photoanodes: Promise and Challenges

Effect of Ar-plasma treatment and annealing on thermally evaporated β-In₂S₃ thin films

The Synthesis and the effect of Cu on optoelectronic qualities of β-In2S3 as a window layer for CIGS thin film solar cells

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Photo-electrochemical impedance spectroscopy analysis of hydrothermally synthesized β-In2S3 thin film photo-anodes

Cited by 14 publications

References 28 publications

β-In2S3 as Water Splitting Photoanodes: Promise and Challenges

β-In2S3 as Water Splitting Photoanodes: Promise and Challenges

Effect of Ar-plasma treatment and annealing on thermally evaporated β-In2S3 thin films

The Synthesis and the effect of Cu on optoelectronic qualities of β-In2S3 as a window layer for CIGS thin film solar cells

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Product

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Effect of Ar-plasma treatment and annealing on thermally evaporated β-In₂S₃ thin films