Films of supersaturated Cd (x) Pb1-x S solid solutions: Composition prognostication, chemical synthesis, microstructure / Maskaeva L. N.,Vaganova I. V.,Markov V. F.,Voronin V. I. // RUSSIAN JOURNAL OF APPLIED CHEMISTRY. - 2017. - V. 90, l. 5. - P. 691-700.

ISSN/EISSN:

1070-4272 / 1608-3296

Type:

Article

Abstract:

Working conditions and the concentration regions of the joint precipitation of PbS and CdS at which substitution solid solutions Cd (x) Pb1-x can be formed were determined by calculation of ionic equilibria in the citrate-ammonia reaction mixture at 298 and 353 K with consideration for the conversion fractions of lead and cadmium sulfides into the corresponding sulfides. The hydrochemical precipitation onto glass-ceramic substrates was used to obtain Cd (x) Pb1-x S (0 < x ae 0.149) solid solution films with thicknesses of 0.5 to 1.7 mu m and high supersaturation with the substituting component. All the films crystallize to form the B1 structure. The phase and elemental compositions and morphological specific features of the films were studied. It was shown that the thickness of the deposited layers is most strongly affected by the process temperature, ammonium hydroxide concentration, and relative amounts of the metal salts in the reaction mixture. It was found that there are oxygen and chlorine in the Cd (x) Pb1-x S solid solutions, and the distribution of these elements across the layer thickness was determined, with the layer-by-layer distribution of chlorine having a pronounced oscillatory nature. It was shown that, as the chemical precipitation temperature is raised, the content of CdS in the substitution solid solutions grows exponentially. The activation energies Ea.ic of the lead and cadmium interchange in the PbS crystal lattice were found to be, depending on the initial concentration of the lead salt, 75.3, 42.8, and 22.2 kJ mol(-1).

Author keywords:

THIN-FILMS; OPTICAL-PROPERTIES; BATH DEPOSITION; SOLAR-CELLS; PBS

DOI:

10.1134/S1070427217050044

Web of Science ID:

ISI:000409133800004

Соавторы в МНС:

Другие поля

Поле	Значение
Month	MAY
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1608-3296
Keywords-Plus	THIN-FILMS; OPTICAL-PROPERTIES; BATH DEPOSITION; SOLAR-CELLS; PBS
Research-Areas	Chemistry
Web-of-Science-Categories	Chemistry, Applied
Author-Email	mln@ural.ru
Funding-Acknowledgement	Federal Agency for Scientific Organizations of the Russian Federation {[}01201463334]
Funding-Text	The study was carried out at the Unique Research Installation of Neutron Materials Science Complex, Institute of Metal Physics, under a State assignment from the Federal Agency for Scientific Organizations of the Russian Federation (project Potok, no. 01201463334).
Number-of-Cited-References	29
Journal-ISO	Russ. J. Appl. Chem.
Doc-Delivery-Number	FF6OT