Influence of the ligand nature on the boundary conditions of the formation and the morphology of nanocrystalline cadmium sulfide films

Forostyanaya, N. A.; Маскаева, Л. Н.; Марков, В. Ф.

doi:10.1134/s1070363215110031

Cited by 6 publications

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“…2c). The presence of the hierarchical structure characteristic of CdS [30] is a consequence of the block deposition mechanism implementation. In the bulk of the reaction mixture, solid phase clusters form followed by deposition on the substrate surface [31].…”

Section: Resultsmentioning

confidence: 99%

Morphological and structural features of the Cd_xPb_1−xS films obtained by CBD from ethylenediamine-citrate bath

et al. 2021

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The calculating of ionic equilibria in the system «Pb(CH3COO)2 - CdCl2 - Na3C6H5O7 - ‎(NH3)2(CH2)2 - N2H4CS» allowed us to find conditions and concentration regions of PbS and CdS co-deposition. The determined conditions provided the CBD obtaining of CdxPb1−xS (0 ≤ x ≤ 0.033) substitutional solid solutions films with a cubic structure B1 (space group Fm ) with the grains preferred orientation (200). We established the evolution of the surface morphology of the synthesized films from cubic crystallites to hierarchical structure of globular aggregates by scanning electron microscopy. A quantitative analysis of diffraction patterns showed a decrease of microstrains in CdxPb1−xS films by a about factor of 3 with an increase of the cadmium chloride concentration in the reaction mixture from 0.005 to 0.14 mol/l. The excess of the cadmium content, established by EDX analysis, in the studied films as compared to its content in the solid solution is associated with the additional formation of the amorphous CdS phase up to 72 mol %.

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Section: Resultsmentioning

confidence: 99%

Morphological and structural features of the Cd_xPb_1−xS films obtained by CBD from ethylenediamine-citrate bath

et al. 2021

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“…The particles that form the surface of CdS film in citrate -ethylenediamine system which have the same size are combined into larger agglomerate of ~ 350 nm compared with the previous system and its amount is significantly lower, whereby they are less tightly adjacent to each other (Figure 5b.) The reasons of differences in the morphology of films in systems with different ligand background are ambiguous because of chemical bath deposition is a complex process and the ligand molecules may influence on the formation of films, both at the stage of nucleation due to the strength of the resulting metal complex forms, and at the stage of film growth due to different spatial structures ligand molecules [19].…”

Section: Resultsmentioning

confidence: 99%

Ligand Background of the Reaction Mixture as a Factor of the CdS – PbS thin Films Formation by Chemical Bath Deposition

2016

European Reviews of Chemical Research

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The concentration planes of lead and cadmium sulphide formation in "Cd 2+ -Pb 2+ -L -OH − -N2H4CS"systems (where L -C6H5O7 3-, H2NCH2CH2NH2, C6H5O7 3-+ H2NCH2CH2NH2) were calculated by analyzing of the ion equilibrium. Scaning electron microscopy and energy dispersive analysis results showed the effect of the nature and strength of the complexing agents on composition and morphology of synthesized nanocrystalline CdS -PbS films.Keywords: ionic equilibrium, ligands, hydrochemical deposition, thin films, lead sulfide, cadmium sulfide, substitutional solid solutions. IntroductionAt present, more and more attention to the issues of detecting infrared radiation is given to heterostructures. The use of these materials allows for a more meaningful results compared with the photodetectors based on silicon and germanium. The use of functional-elements on the basis of substitutional solid solutions is also very attractive in this respect. Changing the content of the replacement component we can regulate their properties over a wide range and the range depends on differences of the basic compounds characteristics. In particular, change of cadmium content in composition of the CdxPb1-xS solid solution allows widely varying characteristics of the semiconductor material from the narrow-band galena PbS (ΔEg = 0.41eV) to wide-band CdS (ΔEg = 2.4 eV). This ensures effective solution of various problems in optoelectronics, such as the manufacture of environmental monitoring instrumentation, optical sensors of temperature control, fast-acting photodetector e.t.c.However, according to the equilibrium phase diagram [1, 2] sulphides of lead and cadmium don't form a continuous series of solid solutions and their mutual solubility is decreaseswith the temperature: solubility limit of cadmium sulfide into lead sulfide reaches 38 mol. % at 1325 K and it does not exceed 9·10 -3 mol. % at 523 K. Probably the prevalence of high temperature methods of

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Chemical Deposition of CdxPb1 – xS/CdyS Thin-Film Composite Structures

Selyanina,

Maskaeva,

Voronin

et al. 2023

Russ. J. Inorg. Chem.

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Influence of the ligand nature on the boundary conditions of the formation and the morphology of nanocrystalline cadmium sulfide films

Cited by 6 publications

References 10 publications

Morphological and structural features of the Cd_xPb_1−xS films obtained by CBD from ethylenediamine-citrate bath

Morphological and structural features of the Cd_xPb_1−xS films obtained by CBD from ethylenediamine-citrate bath

Ligand Background of the Reaction Mixture as a Factor of the CdS – PbS thin Films Formation by Chemical Bath Deposition

Chemical Deposition of CdxPb1 – xS/CdyS Thin-Film Composite Structures

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Influence of the ligand nature on the boundary conditions of the formation and the morphology of nanocrystalline cadmium sulfide films

Cited by 6 publications

References 10 publications

Morphological and structural features of the CdxPb1−xS films obtained by CBD from ethylenediamine-citrate bath

Morphological and structural features of the CdxPb1−xS films obtained by CBD from ethylenediamine-citrate bath

Ligand Background of the Reaction Mixture as a Factor of the CdS – PbS thin Films Formation by Chemical Bath Deposition

Chemical Deposition of CdxPb1 – xS/CdyS Thin-Film Composite Structures

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Morphological and structural features of the Cd_xPb_1−xS films obtained by CBD from ethylenediamine-citrate bath

Morphological and structural features of the Cd_xPb_1−xS films obtained by CBD from ethylenediamine-citrate bath