Influence of cadmium acetate salt concentration on the composition, structure and morphology of CdxPb1−xS solid soluton films
https://doi.org/10.17586/2220-8054-2018-9-6-811-822
Abstract
Films of supersaturated substitutional CdxPb1−xS (0.03 ≤ x ≤ 0.22) solutions with a B1-type structure based on lead sulfide cubic lattice were produced by chemical bath co-deposition of CdS and PbS with various concentrations of cadmium acetate in the ammonium citrate reaction mixtures. The results of X-ray measurements showed that with increasing cadmium acetate concentration the microstrains increase in the deposited layers and the crystallites have [200] preferred orientation and pronounced volume anisotropy. It is shown that the obtained films are nanostructured. Depending on the solid solution composition, the layers consist of crystallites with average sizes 200 – 1000 nm. These, in turn, are formed from initial nanoparticles with diameter 50 – 70 nm. The conductivity of the films decreases with increasing cadmium-sulfide content. The synthesized films are photosensitive without any special sensitization procedure in the visible and near-infrared spectral ranges. The maximum of spectral characteristic and the long-wave limit of the photo-response of CdxPb1−xS films move smoothly toward the short-wave spectral range from 3.1 to 1.6 µm and from 2.5 to 1.2 µm, respectively, with an increase in the substitution level of lead into cadmium in PbS lattice correspondently.
Keywords
chemical bath co-deposition,
solid solution films,
x-ray diffraction,
microstrains,
crystallite size
Supporting agencies: The work was supported by Act 211 Government of the Russian Federation, contract No. 02.A03.21.0006. The research was carried out in part at IMP Neutron Material Science Complex within the state assignment of FASO of Russia (theme “Flux” No. AAAA-A18-118020190112-8).
About the Authors
I. V. Vaganova
Ural Federal University named after the first President of Russia B.N. Yeltsin
Russian Federation
Russian Federation
Mira St., 19. Yekaterinburg, 620002, Sverdlovsk Region
L. N. Maskaeva
Ural Federal University named after the first President of Russia B.N. Yeltsin; Ural State Fire Service Institute of Emergency Ministry of Russia
Russian Federation
Russian Federation
Mira St., 19. Yekaterinburg, 620002, Sverdlovsk Region
Mira St., 22, Yekaterinburg, 620022, Sverdlovsk Region
V. F. Markov
Ural Federal University named after the first President of Russia B.N. Yeltsin; Ural State Fire Service Institute of Emergency Ministry of Russia
Russian Federation
Russian Federation
Mira St., 19. Yekaterinburg, 620002, Sverdlovsk Region
Mira St., 22, Yekaterinburg, 620022, Sverdlovsk Region
V. I. Voronin
Institute of Metal Physics URAN named after M.N. Miheev
Russian Federation
Russian Federation
Kovalevsloy St., 18, Yekaterinburg, 620137, Sverdlovsk Region
V. G. Bamburov
Institute of Solid State Chemistry URAN
Russian Federation
Russian Federation
Pervomaiskaya St. 91, Yekaterinburg, 620990, Sverdlovsk Region
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For citations:
Vaganova I.V., Maskaeva L.N., Markov V.F., Voronin V.I., Bamburov V.G. Influence of cadmium acetate salt concentration on the composition, structure and morphology of CdxPb1−xS solid soluton films. Nanosystems: Physics, Chemistry, Mathematics. 2018;9(6):811–822. https://doi.org/10.17586/2220-8054-2018-9-6-811-822
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