Effect of the Anionic Component of Cadmium Salt on the Morphology, Composition, and Topological Features of CdS–PbS Nanocrystalline Films

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Effect of the Anionic Component of Cadmium Salt on the Morphology, Composition, and Topological Features of CdS–PbS Nanocrystalline Films. / Maskaeva, L.; Pozdin, A.; Selyanina, A. d. et al.
In: Journal of Surface Investigation, Vol. 17, No. S1, 01.12.2023, p. S349-S359.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{05b632dd19084a788d34fbed4ac0981e,

title = "Effect of the Anionic Component of Cadmium Salt on the Morphology, Composition, and Topological Features of CdS–PbS Nanocrystalline Films",

abstract = "Abstract: CdS–PbS nanocrystalline films with a thickness of 0.5 to 1.2 µm are obtained by Chemical Bath Deposition (CBD) from an ammonium-citrate reaction mixture by varying the concentrations of different cadmium salts CdAnn (An is CH3COO−,,) within 0.01–0.08 mol/L. The morphology and surface topography of the films are studied by scanning electron and atomic-force microscopy. The film{\textquoteright}s composition is determined by energy-dispersive analysis. A nonlinear change in the content of the main CdS–PbS film elements and their morphological characteristics is shown. The influence of the anionic component of the salt CdAnn on the cadmium content in thin film layers is established. This effect correlates with the lyotropic series of anions: > > CH3COO−. A mechanism for the anion nucleophilic addition to the thiocarbonyl atom of thiourea is proposed. As a result, a nucleophilic attack promotes thiourea activation by weakening the carbon–sulfur bond. Based on the results of comprehensive study of the morphology and the fractal analysis of the surface of the CdS–PbS semiconductor layers, we conclude that the studied films are predominantly formed by particle–cluster diffusion-limited aggregation (DLA).",

author = "L. Maskaeva and A. Pozdin and Selyanina, {A. d.} and V. Voronin and V. Rogozin and I. Miroshnikova and V. Markov",

note = "The research funding from the Ministry of Science and Higher Education of the Russian Federation (Ural Federal University Program of Development within the Priority-2030 Program) is gratefully acknowledged.",

year = "2023",

month = dec,

day = "1",

doi = "10.1134/S1027451023070327",

language = "English",

volume = "17",

pages = "S349--S359",

journal = "Journal of Surface Investigation",

issn = "1027-4510",

publisher = "Pleiades Publishing",

number = "S1",

}

RIS

TY - JOUR

T1 - Effect of the Anionic Component of Cadmium Salt on the Morphology, Composition, and Topological Features of CdS–PbS Nanocrystalline Films

AU - Maskaeva, L.

AU - Pozdin, A.

AU - Selyanina, A. d.

AU - Voronin, V.

AU - Rogozin, V.

AU - Miroshnikova, I.

AU - Markov, V.

N1 - The research funding from the Ministry of Science and Higher Education of the Russian Federation (Ural Federal University Program of Development within the Priority-2030 Program) is gratefully acknowledged.

PY - 2023/12/1

Y1 - 2023/12/1

N2 - Abstract: CdS–PbS nanocrystalline films with a thickness of 0.5 to 1.2 µm are obtained by Chemical Bath Deposition (CBD) from an ammonium-citrate reaction mixture by varying the concentrations of different cadmium salts CdAnn (An is CH3COO−,,) within 0.01–0.08 mol/L. The morphology and surface topography of the films are studied by scanning electron and atomic-force microscopy. The film’s composition is determined by energy-dispersive analysis. A nonlinear change in the content of the main CdS–PbS film elements and their morphological characteristics is shown. The influence of the anionic component of the salt CdAnn on the cadmium content in thin film layers is established. This effect correlates with the lyotropic series of anions: > > CH3COO−. A mechanism for the anion nucleophilic addition to the thiocarbonyl atom of thiourea is proposed. As a result, a nucleophilic attack promotes thiourea activation by weakening the carbon–sulfur bond. Based on the results of comprehensive study of the morphology and the fractal analysis of the surface of the CdS–PbS semiconductor layers, we conclude that the studied films are predominantly formed by particle–cluster diffusion-limited aggregation (DLA).

AB - Abstract: CdS–PbS nanocrystalline films with a thickness of 0.5 to 1.2 µm are obtained by Chemical Bath Deposition (CBD) from an ammonium-citrate reaction mixture by varying the concentrations of different cadmium salts CdAnn (An is CH3COO−,,) within 0.01–0.08 mol/L. The morphology and surface topography of the films are studied by scanning electron and atomic-force microscopy. The film’s composition is determined by energy-dispersive analysis. A nonlinear change in the content of the main CdS–PbS film elements and their morphological characteristics is shown. The influence of the anionic component of the salt CdAnn on the cadmium content in thin film layers is established. This effect correlates with the lyotropic series of anions: > > CH3COO−. A mechanism for the anion nucleophilic addition to the thiocarbonyl atom of thiourea is proposed. As a result, a nucleophilic attack promotes thiourea activation by weakening the carbon–sulfur bond. Based on the results of comprehensive study of the morphology and the fractal analysis of the surface of the CdS–PbS semiconductor layers, we conclude that the studied films are predominantly formed by particle–cluster diffusion-limited aggregation (DLA).

UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85186760583

UR - https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=tsmetrics&SrcApp=tsm_test&DestApp=WOS_CPL&DestLinkType=FullRecord&KeyUT=001176095900047

U2 - 10.1134/S1027451023070327

DO - 10.1134/S1027451023070327

M3 - Article

VL - 17

SP - S349-S359

JO - Journal of Surface Investigation

JF - Journal of Surface Investigation

SN - 1027-4510

IS - S1

ER -

ID: 53808099