Enhancement of quantum dot-sensitized solar cells performance using CuInS2–Cu2S nanocomposite synthesized by a green method

Mousavi‐Kamazani, Mehdi; Salehi, Zeinab; Motevalli, Kourosh

doi:10.1007/s00339-017-1325-3

Cited by 9 publications

(6 citation statements)

References 29 publications

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“…On the basis of the gaps between the arrangements as seen in the picture, the material's electrochemical activity can also be improved. In 2 S 3 structures with an atypical shape were also presented by Mousavi-Kamazani et al [52] and were produced hydrothermally. The mapped profiles of the elements was conducted utilizing energy dispersive X-ray investigation, as part of the experimental procedures.…”

Section: Exploration Of Morphology and Elementsmentioning

confidence: 70%

Advancing Photoelectrochemical Systems: Unleashing the Remarkable Performance of In : SnO₂/Nd₄In₅S₁₃ for Sustainable Energy Applications

Mahar Gul,

Shahzad Ahmad,

Guy Thomas

et al. 2024

ChemistrySelect

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Neodymium Indium sulphide (Nd4In5S13) photoactive electrode was produced by spin‐coating for photoelectrochemical cell. The photoactive electrode is analysed for its crystalline, structural and elements makeup in addition to its optical and electrical responses. A 56 nm sized orthorhombic crystallite was found and geometrical compact structures were observed. The presence of chief elements with core levels of In3d, Nd4d and S2p were detected. The bandgap energy was found to be 4.1 eV. Electrochemical investigations were performed to evaluate the photoactive efficiency of the electrode. Photo‐cyclic voltammetry present a specific capacitance under illumination to be 570 Fg−1, as contrasting to 481 Fg−1 when in dark. A photocurrent density of 282 mA cm−2 was obtained from photo‐linear sweep voltammetry. It had also been discovered that the transient chronoamperometry provided a photocurrent density of 46.1 mA cm−2. Whereas electrical impedance spectroscopy presented internal resistance (Rs) to be 232 Ω. All scan rates show an increase in the specific capacitance of photo‐electrode when illuminated. The research created an effective photo‐electrode for renewable energy structures. It can be posited that the study presented a pragmatic photoelectrode, which had the potential to be employed in sustainable energy frameworks, including but not limited to photovoltaics, supercapacitors, and photoelectrochemical solar cells.

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Section: Exploration Of Morphology and Elementsmentioning

confidence: 70%

Advancing Photoelectrochemical Systems: Unleashing the Remarkable Performance of In : SnO₂/Nd₄In₅S₁₃ for Sustainable Energy Applications

Mahar Gul,

Shahzad Ahmad,

Guy Thomas

et al. 2024

ChemistrySelect

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“…The curve fitting suggests that the sputtering induced the formation of Cu 2 O/CuO on the surface. Sulfidation removed these Cu 2+ impurities (Figure b), and the prominent Cu 2p 3/2 and Cu 2p 1/2 peak positions at 932.4 and 952.4 eV represent Cu 2 S formation on the ZnO surface . The deconvoluted peaks depicted in Figure c at about 161.6 and 162.8 eV represent the S 2p 3/2 and S 2p 1/2 , respectively .…”

Section: Resultsmentioning

confidence: 93%

“…Sulfidation removed these Cu 2+ impurities (Figure 3b), and the prominent Cu 2p 3/2 and Cu 2p 1/2 peak positions at 932.4 and 952.4 eV represent Cu 2 S formation on the ZnO surface. 37 The deconvoluted peaks depicted in Figure 3c at about 161.6 and 162.8 eV represent the S 2p 3/2 and S 2p 1/2 , respectively. 38 There is no other peak around 168.0 eV which represents the absence of S−O interaction at the ZnO−ZnS− Cu 2 S (8 h) heterostructural surface.…”

Section: Resultsmentioning

confidence: 99%

Promotional Effect of Cu₂S–ZnS Nanograins as a Shell Layer on ZnO Nanorod Arrays for Boosting Visible Light Photocatalytic H₂ Evolution

et al. 2020

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The construction of systematically designed heterostructures with different integrated functionalities in a well-oriented nanoarchitecture is an efficient strategy for attaining high-performance photocatalysts. In this work, a heterostructural platform of ZnO–ZnS–Cu2S core–shell nanorod (NR) arrays is prepared as a photocatalyst for efficient H2 evolution using visible light. The fabrication is a three-step process involving solution growth of a ZnO NR array, followed by reactive sputtering of Cu2O, and then a sulfidation reaction. Addition of a ZnS interlayer to the ZnO–Cu2S core–shell arrays further extends the visible light absorbance range and promotes effective charge carrier separation. More importantly, the transition of Cu2O into Cu2S ensures the effective interaction of the core–shell assembly with the ZnS-based interface, thereby creating a valuable energy-level configuration and spectral bands that allow accurate separation of the photogenerated charge carrier. The effective H2 evolution in response to visible light irradiation is 436 μmol h–1 g–1 for the ZnO–ZnS–Cu2S (8 h) NR arrays, which is 2.55 and 1.61 times higher than that achieved with ZnO–Cu2O and ZnO–Cu2S photocatalytic NR arrays, respectively. The pollutant degradation rate for ZnO–ZnS–Cu2S (8 h) NR arrays under visible light irradiation is 7.8, 2.7, and 1.6 times higher than that achieved with pristine ZnO, ZnO–Cu2O, and ZnO–Cu2S core–shell structures, respectively. These visible light-responsive core–shell heterostructures show promising reuse properties and maintain their stability during use.

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“…It displayed a splitting of 19.7 eV, which is in close agreement with the reported splitting value of 19.8 eV in the literature. [ 37 ] A peak at 942 eV has not been obtained in the high‐resolution XPS indicating the absence of any other state other than Cu + in the sample. A peak for Zn 2 p was observed at 1,020.8 eV, which is close to the previous findings in the literature of 1,022 eV.…”

Section: Resultsmentioning

confidence: 99%

“…[35,36] Cu 2 S has been previously utilized in the quantum dotsensitized solar cells. [37] The Mousavi-Kamazani group elaborated that nanocomposites can be used to increase the power conversion efficiency of a single junction solar cell beyond the Shockley-Queisser limit. Low bandgap semiconductor nanocrystals, also known as quantum dots, such as CdS and AgInS 2 are widely researched for these kinds of cells.…”

Section: Introductionmentioning

confidence: 99%

In:SnO₂/Yb₂S₃:Cu₂S:ZnS: A Rare Earth Metal Sulfide‐Conjugated Transition Metal Sulfide Photoactive Electrode

et al. 2023

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Spin coating from a single source precursor is used to produce a transparent conductive electrode for a photoelectrochemical cell. Yb 2 S 3 :Cu 2 S:ZnS is discovered in the composite using X-ray diffraction analysis with a crystallite size of 44 nm. Energy-dispersive X-ray analysis and X-ray photoelectron spectroscopy reveal that the composite comprises Yb, Cu, Zn, and S with an optical bandgap of 2.49 eV. Electrical investigations in a photoelectrochemical cell are measured using cyclic voltammetry, linear sweep voltammetry, transient chronoamperometry (CA), and electrical impedance spectroscopy (EIS). Every experiment shows that the photocurrent density of the electrode is higher than when it is in the light. At all scan rates, light causes the photoelectrode's specific capacitance to increase. Specific capacitance is found to have a maximum value under illumination of 789 Fg À1 as opposed to 745 Fg À1 in the absence of a light source. The highest photocurrent density achieved by the electrode through CA is 23.5 mA. R s value of 23.4 Ω is subsequently obtained by the EIS investigation. It might be stated that this work introduces a useful photoelectrode that can be used in renewable energy systems such as photovoltaics, supercapacitors, and photoelectrochemical solar cells.

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Enhancement of quantum dot-sensitized solar cells performance using CuInS2–Cu2S nanocomposite synthesized by a green method

Cited by 9 publications

References 29 publications

Advancing Photoelectrochemical Systems: Unleashing the Remarkable Performance of In : SnO₂/Nd₄In₅S₁₃ for Sustainable Energy Applications

Advancing Photoelectrochemical Systems: Unleashing the Remarkable Performance of In : SnO₂/Nd₄In₅S₁₃ for Sustainable Energy Applications

Promotional Effect of Cu₂S–ZnS Nanograins as a Shell Layer on ZnO Nanorod Arrays for Boosting Visible Light Photocatalytic H₂ Evolution

In:SnO₂/Yb₂S₃:Cu₂S:ZnS: A Rare Earth Metal Sulfide‐Conjugated Transition Metal Sulfide Photoactive Electrode

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Enhancement of quantum dot-sensitized solar cells performance using CuInS2–Cu2S nanocomposite synthesized by a green method

Cited by 9 publications

References 29 publications

Advancing Photoelectrochemical Systems: Unleashing the Remarkable Performance of In : SnO2/Nd4In5S13 for Sustainable Energy Applications

Advancing Photoelectrochemical Systems: Unleashing the Remarkable Performance of In : SnO2/Nd4In5S13 for Sustainable Energy Applications

Promotional Effect of Cu2S–ZnS Nanograins as a Shell Layer on ZnO Nanorod Arrays for Boosting Visible Light Photocatalytic H2 Evolution

In:SnO2/Yb2S3:Cu2S:ZnS: A Rare Earth Metal Sulfide‐Conjugated Transition Metal Sulfide Photoactive Electrode

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Advancing Photoelectrochemical Systems: Unleashing the Remarkable Performance of In : SnO₂/Nd₄In₅S₁₃ for Sustainable Energy Applications

Advancing Photoelectrochemical Systems: Unleashing the Remarkable Performance of In : SnO₂/Nd₄In₅S₁₃ for Sustainable Energy Applications

Promotional Effect of Cu₂S–ZnS Nanograins as a Shell Layer on ZnO Nanorod Arrays for Boosting Visible Light Photocatalytic H₂ Evolution

In:SnO₂/Yb₂S₃:Cu₂S:ZnS: A Rare Earth Metal Sulfide‐Conjugated Transition Metal Sulfide Photoactive Electrode