Adsorption and electrophysical properties of semiconductors of the InSb-CdS system

Kirovskaya, I. A.; Filatova, T. N.

doi:10.1134/s0036024412040139

Cited by 5 publications

(2 citation statements)

References 4 publications

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“…In recent years, cadmium sulfide (CdS) semiconductor has attracted attention for various applications because of its wide energy band gap (~2.42 eV), high transparency, high stability, n-type conductivity, emission tunability, high extinction coefficient, large dipole moment, and potential sensitization [1][2][3][4]. CdS thin films have been widely used as n-type buffer layers in high-efficiency Cu(In, Ga)Se 2 (CIGS) thin film solar cells with the structure of glass/Mo/CIGS/CdS/i-ZnO/ZnO:Al(AZO) [5][6][7], where the p-n junction is formed at the interface of CIGS/CdS.…”

Section: Introductionmentioning

confidence: 99%

Performance of Graphene–CdS Hybrid Nanocomposite Thin Film for Applications in Cu(In,Ga)Se2 Solar Cell and H2 Production

et al. 2020

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A graphene–cadmium sulfide (Gr–CdS) nanocomposite was prepared by a chemical solution method, and its material properties were characterized by several analysis techniques. The synthesized pure CdS nanoparticles (NPs) and Gr–CdS nanocomposites were confirmed to have a stoichiometric atomic ratio (Cd/S = 1:1). The Cd 3d and S 2p peaks of the Gr–CdS nanocomposite appeared at lower binding energies compared to those of the pure CdS NPs according to X-ray photoelectron spectroscopy analyses. The formation of the Gr–CdS nanocomposite was also evidenced by the structural analysis using Raman spectroscopy and X-ray diffraction. Transmission electron microscopy confirmed that CdS NPs were uniformly distributed on the graphene sheets. The absorption spectra of both the Gr–CdS nanocomposite and pure CdS NPs thin films showed an absorption edge at 550 nm related to the energy band gap of CdS (~2.42 eV). The Cu(In,Ga)Se2 thin film photovoltaic device with Gr–CdS nanocomposite buffer layer showed a higher electrical conversion efficiency than that with pure CdS NPs thin film buffer layer. In addition, the water splitting efficiency of the Gr–CdS nanocomposite was almost three times higher than that of pure CdS NPs.

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Section: Introductionmentioning

confidence: 99%

Performance of Graphene–CdS Hybrid Nanocomposite Thin Film for Applications in Cu(In,Ga)Se2 Solar Cell and H2 Production

et al. 2020

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“…Among other applications of the adsorption studies results gas analysis should be mentioned: because of the semiconductor adsorbent applications as basic measuring cell elements, it is important to know about mutual gas influence that has been repeatedly shown [7].…”

Section: Absorption Studiesmentioning

confidence: 99%

Comparative adsorption and catalytic properties of CDSE-CDTE system components in carbon oxide (II) oxidation reaction

Kirovskaya

Миронова

Bukashkina

2014

2014 Dynamics of Systems, Mechanisms and Machines (Dynamics)

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Comparative adsorption and catalytic CdSe, CdTe and (CdSe)x(CdTe)1-x solid solutions properties are examined on the example of the CO and its participants-reactants (CO, O2) oxidation. Similarities and differences in their behavior are revealed. Adsorption and catalytic studies results full correspondence is shown. Individual and joint mechanisms of the CO catalytic oxidation reactants adsorption is proposed. The most active catalyst, CdTe, working effectively at ambient temperature, is discovered which allowes to recommend it for CO neutralization at greatly reduced energy costs.Adsorbtive catalysts were powders (Ssp = 0,405-0,91 m 2 /g) CdSe, CdTe and substitutional solid solutions (CdSe) x (CdTe) 1-x (x = 0,15; 0,25; 0,5; 0,75; 0,85 mol. % CdSe), obtained by isothermal diffusion in binary components mutual solubility areas [1].Adsorption was studied by volumetric, piezo-quartz microweighting (1,23⋅10 -11 g/(sm 2 Gts sensitivness to) with 258 -477 K temperature range and 6 -18 Pa pressure and IR-spectroscopy [2].Catalytic studies were performed on a flow-circulation installation [2, 3], which is directly connected to the analysis system with the same values of contact time and partial pressures of the reactants under conditions excluding mass and heat transfer processe effect: T = 290 -474 K, P = 101 308 Pa, carrier gas circulation rate = 22-24 ml/min, impulse volume = 5 ml. Direct catalytic studies were supplemented by indirect IR spectroscopy and FITR methods.Gas argon was mostly used as the carrier (for comparison with the air). Reactant gases (CO, O 2 ) were obtained according to well-known methods [4] followed by chromatographic analysis. The reaction mixture was prepared at a ratio of CO: O 2 = 1: 2. The initial CO content is (1,68-2,9) -5 mole.The specific catalytic activity was assessed by the specific rate at given temperatures and reaction mixture composition. The reaction course was judged by CO, O2 decrease and CO 2 increase which was determined chromatographically and with IR spectrophotometer method on "InfraLUM FT-02".

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Hydrothermal synthesis of graphene–CdS composites with improved photoelectric characteristics

Lei

Chen

et al. 2014

J Mater Sci: Mater Electron

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Adsorption and electrophysical properties of semiconductors of the InSb-CdS system

Cited by 5 publications

References 4 publications

Performance of Graphene–CdS Hybrid Nanocomposite Thin Film for Applications in Cu(In,Ga)Se2 Solar Cell and H2 Production

Performance of Graphene–CdS Hybrid Nanocomposite Thin Film for Applications in Cu(In,Ga)Se2 Solar Cell and H2 Production

Comparative adsorption and catalytic properties of CDSE-CDTE system components in carbon oxide (II) oxidation reaction

Hydrothermal synthesis of graphene–CdS composites with improved photoelectric characteristics

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