Вид документа : Статья из журнала Шифр издания : 54/T 80 Автор(ы) : Rempel A. A., Kozhevnikova N. S., Leenaers A. J. G., Van den Berghe S. Заглавие : Towards particle size regulation of chemically deposited lead sulfide (PbS) Место публикации : Journal of Crystal Growth. - 2005. - Vol. 280, № 1-2. - С. 300-308 ББК : 54 Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ Ключевые слова (''Своб.индексиров.''): наноструктура--сульфиды--свинец--осаждение Аннотация: Powders and solid films of lead sulfides (PbS) were produced by chemical bath deposition from thiourea aqueous solutions at a temperature of 325 K. By a Rietveld-like analysis of the X-ray spectra, it was shown that nanocrystalline PbS has the same rock salt structure B1 (space group Fm-3m) as coarse grained or single crystalline PbS. Nevertheless, this B1 structure is a very distorted structure with root mean square displacements up to 0.011nm and with a microstrain up to 0.3%. The particle sizes in the PbS powders and films measured by scanning electron microscopy (SEM) are found to be in agreement with those determined by Bragg–Brentano X-ray diffraction (XRD) on powders and by glancing incident diffraction (GID) on films. It was found that by changing the chemical affinity in the range from 31.4 to 38.7 kJ/mol, it is possible to regulate the particle size of the chemically deposited sulfide powders from 100 to 300 nm. Держатели документа: Центральная научная библиотека УрО РАН Доп.точки доступа: Rempel, A. A.; Ремпель Андрей Андреевич; Kozhevnikova, N. S.; Leenaers, A. J. G.; Van den Berghe, S.