Наукова електронна бібліотека
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періодичних видань НАН України
Synthesis route and optical characterization of CdS:Mn/polyvinyl alcohol nanocomposite
Репозиторій DSpace/Manakin
- Домашня сторінка
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- Фізико-технічні та математичні науки
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- Відділення фізики і астрономії
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- Semiconductor Physics Quantum Electronics & Optoelectronics
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- Semiconductor Physics Quantum Electronics & Optoelectronics, 2012, том 15
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- Semicond. Physics Quantum Electronics & Optoelectronics, 2012, № 2
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Synthesis route and optical characterization of CdS:Mn/polyvinyl alcohol nanocomposite
Інший ID:
PACS 78.55.Et, 78.67.Sc, 81.07.-b, 81.65.Rv
Посилання:
Synthesis route and optical characterization of CdS:Mn/polyvinyl alcohol nanocomposite / V.I. Fediv, G.Yu. Rudko, A.I. Savchuk, E.G. Gule, A.G. Voloshchuk // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2012. — Т. 15, № 2. — С. 117-123. — Бібліогр.: 29 назв. — англ.
Підтримка:
The work has been supported in part by the Ministry of
Education and Science of Ukraine.
Дата:
2012
Переглядів:
723
Завантажень:
425
Анотація:
CdS nanoparticles doped with Mn have been synthesized in aqueous solution
by using polyvinyl alcohol (PVA) as a capping reagent. Influence of the polymer
concentration on the size and concentration of the nanoparticles was studied using
transmission electron microscopy and optical absorption. Incorporation of Mn²⁺ ions into
CdS nanoparticles was confirmed by photoluminescence (PL) intensity increase and band
shift with Mn concentration. The PL studies proved that localization of Mn ions (inside
the nanoparticles or on the surface) depends on the sequence of synthesis steps. The
bleaching of the low-energy PL band of the low-doped CdS:Mn nanoparticles by surface
modification with a Cd(OH)₂ layer proves suppression of the emission related to surface
states.
