Nucleation and growth kinetics of colloidal nanoparticles CdS:Mn in aqueous solution of polyvinyl alcohol

• Published in: Semiconductor Physics Quantum Electronics & Optoelectronics
• Date: 2014
• Main Authors: Rudko, G.Yu., Fediv, V.I., Savchuk, A.I., Gule, E.G., Vorona, I.P., Nosenko, V.V.
• Format: Article
• Language: English
• Published: Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України 2014
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/118512
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Nucleation and growth kinetics of colloidal nanoparticles CdS:Mn
 in aqueous solution of polyvinyl alcohol / G.Yu. Rudko, V.I. Fediv, A.I. Savchuk, E.G. Gule, I.P. Vorona, V.V. Nosenko // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2014. — Т. 17, № 3. — С. 222-226. — Бібліогр.: 22 назв. — англ.

Colloidal undoped CdS and doped CdS:Mn nanoparticles were synthesized in
 the solution of polyvinyl alcohol polymer, and the process of nanoparticles growth was
 monitored by optical absorption measurements. The inclusion of Mn²⁺ impurity was
 checked by electron paramagnetic resonance measurements. It is shown that the core of
 CdS:Mn nanoparticle is undoped. The results obtained demonstrated that the rate of the
 band gap value decrease during nanoparticles growth is slower for the Mn-doped
 nanoparticles as compared to the undoped ones. This effect was ascribed to the inhibition
 of nanoparticles growth in the solution containing manganese salt. The model of the
 adsorptive doping of CdS NPs with manganese was proposed.