Influence of reaction time on the structural, optical and electrical performance of copper antimony sulfide nanoparticles using solvothermal method

John, Bincy; Silvena, G. Genifer; Rajesh, A. Leo

doi:10.1016/j.physb.2018.02.030

Cited by 10 publications

(4 citation statements)

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“…12,13 The potential for CuSbS 2 as a solar absorber (as well as other semiconductor applications such as dye-sensitized solar cells, thermoelectrics, 14,15 supercapacitors, 2 and battery electrodes 16,17 ) has driven the development of many synthetic methods. Gas-phase (i.e., thermal evaporation, 11 low-temperature atomic layer deposition, 18 and co-sputtering 19 ) and solution-based (i.e., chemical bath deposition, 6,20 electrodeposition, 7 spray pyrolysis, 21 spin coating, 3 solvo/hydrothermal, 22,23 and hot injection 2,4,24 ) synthetic methods have been employed in the successful synthesis of CuSbS 2 thin films and nanomaterials. 25 The first report of CuSbS 2 nanocrystals was from Su, et al in 1999 via a solvothermal method in ethylenediamine.…”

Section: ■ Introductionmentioning

confidence: 99%

Optoelectronic Effects of Chemical and Thermal Treatments on CuSbS₂Nanocrystal Thin Films

Volm

Yang

Waal

et al. 2021

ACS Appl. Electron. Mater.

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The use of nanocrystalline materials in optoelectronic devices has been studied extensively over the last decade. Their size-dependent properties, low cost, low energy solution processing, and the potential for flexible devices motivate this effort. However, many of these benefits are offset by challenges associated with the surface chemistry and multitude of grain boundaries that exist when nanocrystals are cast into thin films. Nanocrystal surface chemistry and material interfaces determine the key physical characteristics (e.g., conductivity, reactivity, charge) due to their large surface to volume ratio. Therefore, controlling the surface chemistry of nanocrystals is essential for optimizing the behavior of nanomaterials for optoelectronic applications. In this report, a comprehensive analysis on the effects of chemical and thermal treatments on CuSbS2 nanocrystal thin films, for their use as a solar energy absorber, is described. Chemical treatments were found to improve film densities, while mild thermal treatments increased the absorptivity coefficient and photocurrent response of the nanocrystal thin films. More specifically, CuSbS2 nanocrystal films that received CuCl2 and mild thermal treatments displayed the highest photocurrent density and highest charge carrier mobility. These results highlight how ligand exchange and thermal treatments help control CuSbS2 nanocrystal performance for thin-film solar technology.

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Section: ■ Introductionmentioning

confidence: 99%

Optoelectronic Effects of Chemical and Thermal Treatments on CuSbS₂Nanocrystal Thin Films

Volm

Yang

Waal

et al. 2021

ACS Appl. Electron. Mater.

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“…While the "top-down" melt-recrystallization approach requires high temperatures and long reaction times, "bottom-up" methodologies may be preferable because they often yield nanostructured material and require lower temperatures and shorter synthesis times. Previously, Cu-Sb-Se-S nanomaterials have been synthesized by a variety of wet-chemical approaches, such as hot-injection (Ramasamy et al, 2014;Chen et al, 2015;Suehiro et al, 2015;Wu et al, 2015;Chen et al, 2016;Bera et al, 2018) or solvothermal (An et al, 2003;James et al, 2015;John et al, 2018) synthesis. Most notably, James et al achieved zT = 0.63 at 720 K for Cu 12 Sb 4 S 13 synthesized by the solvothermal method (James et al, 2015).…”

Section: Solution-phase Synthesismentioning

confidence: 99%

Tetrahedrite Thermoelectrics: From Fundamental Science to Facile Synthesis

Weller

Morelli

2022

Front. Electron. Mater

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Thermoelectric materials have a long and storied history in the research and development of semiconductor materials, being the first such class of materials to be investigated. Thermoelectrics may be used to convert heat to electricity or, alternatively, to liberate or absorb heat upon electrical excitation. They thus find application in thermoelectric generators for converting heat from a primary source or a waste stream to useful electrical power, and as solid state heating and cooling devices. In spite of their great potential in such important applications, thermoelectrics have suffered from a number of drawbacks that have hindered their utilization on a large scale. Chief among these is the fact that most high performance thermoelectric materials are comprised of elements that are in relatively low abundance. Additionally, their synthesis typically involves complex and multi-step processes, hindering manufacturability. Thermoelectric materials derived from Earth-abundant sources are thus of strong current interest, from both scientific and economic points of view. One of these, the family of semiconductors based on tetrahedrite compounds, has generated enormous interest over the last decade due to not only its potential low cost, but also for its fascinating science. In this review, we summarize the state of the art of tetrahedrite as a thermoelectric, with special emphasis on the relationship between crystal structure and bonding in the crystal and its unusually low lattice thermal conductivity; on its fascinating electronic structure; and on the wide array of compositions that have been synthesized and whose thermoelectric properties have been studied. We further highlight some rapid and facile synthesis techniques that have been developed for these compounds which, in combination with their potential low material cost, may open the door to widespread application of these fascinating materials.

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“…The good photostability of the composites mixed with Cu 2−x S improves carriers' separation and transfer efficiency [28,29]. Ternary copper-based compounds of Cu-Sb-S type materials are photovoltaic absorbers with good properties, and they are responsive in the visible light range, which has also received extensive attention [30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Chemical vapor reaction synthesis and photoelectronic properties of CuS and Cu₃SbS₄ thin films

Feng

Liu

2023

Phys. Scr.

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Chemical vapor reaction is a simple and efficient experimental means of preparing metal sulphide films. Through systematically studying the effect of vulcanisation temperature on the growth of copper sulfide (CuS) thin film. The copper antimony sulfide (Cu3SbS4) thin film was obtained by further vulcanized Sb/Cu mental film. The structure and optical properties of the as-prepared films were characterized by X-ray diffraction, Raman and photoluminescence spectra. The hexagonal structure of CuS film was confirmed and Cu3SbS4 grew preferentially along the (112) crystal plane. The surface grains of CuS and Cu3SbS4 films were finally condensed into spheres. The content of S and the resistance of the films increase with the increase in temperature, but the bandgap of the films will be decreased. The bandgap of Cu2-xS films prepared at 195℃-350℃ is in the range of 2.2-2.5 eV and that of Cu3SbS4 thin films prepared at 350℃ is 1.77 eV, and has good absorption in the visible light range. In addition, The Hall effect measurement indicated CuS and Cu3SbS4 films have p-type semiconducting behavior. The carrier concentration and mobility are 2.45×1021 cm-3 and 1.28 cm2/Vs for CuS, and 4.30×1017 cm-3 and 185.93 cm2/Vs for Cu3SbS4, respectively. The I-T tests show that the CuS and Cu3SbS4 thin films have photoconductive properties.

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Influence of reaction time on the structural, optical and electrical performance of copper antimony sulfide nanoparticles using solvothermal method

Cited by 10 publications

References 43 publications

Optoelectronic Effects of Chemical and Thermal Treatments on CuSbS₂Nanocrystal Thin Films

Optoelectronic Effects of Chemical and Thermal Treatments on CuSbS₂Nanocrystal Thin Films

Tetrahedrite Thermoelectrics: From Fundamental Science to Facile Synthesis

Chemical vapor reaction synthesis and photoelectronic properties of CuS and Cu₃SbS₄ thin films

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Influence of reaction time on the structural, optical and electrical performance of copper antimony sulfide nanoparticles using solvothermal method

Cited by 10 publications

References 43 publications

Optoelectronic Effects of Chemical and Thermal Treatments on CuSbS2Nanocrystal Thin Films

Optoelectronic Effects of Chemical and Thermal Treatments on CuSbS2Nanocrystal Thin Films

Tetrahedrite Thermoelectrics: From Fundamental Science to Facile Synthesis

Chemical vapor reaction synthesis and photoelectronic properties of CuS and Cu3SbS4 thin films

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Product

Resources

About

Optoelectronic Effects of Chemical and Thermal Treatments on CuSbS₂Nanocrystal Thin Films

Optoelectronic Effects of Chemical and Thermal Treatments on CuSbS₂Nanocrystal Thin Films

Chemical vapor reaction synthesis and photoelectronic properties of CuS and Cu₃SbS₄ thin films