Structural and luminescent properties of Fe3+ doped PVA capped CdTe nanoparticles

• Autorzy: Ravindranadh K. , Rao M. C.

Identyfikatory

DOI

10.1515/msp-2017-0059

• Języki publikacji: EN

Abstrakty

EN

During recent decades, magnetic and semiconductor nanoparticles have attracted significant attention of scientists in various fields of engineering, physics, chemistry, biology and medicine. Fe³⁺ doped PVA capped CdTe nanoparticles were prepared by co-precipitation method and characterized by powder X-ray diffraction, SEM, TEM, FT-IR, optical, EPR and PL techniques to collect the information about the crystal structure, coordination/local site symmetry of doped Fe³⁺ ions in the host lattice and the luminescent properties of prepared sample. Powder XRD data revealed that the crystal structure belongs to a cubic system and its lattice cell parameters were evaluated. The average crystallite size was estimated to be 8 nm. The morphology of prepared samples was analyzed by using SEM and TEM investigations. Functional groups of the prepared sample were observed in FT-IR spectra. Optical absorption and EPR studies have shown that on doping, Fe³⁺ ions enter the host lattice in octahedral site symmetry. PL studies of Fe³⁺ doped PVA capped CdTe nanoparticles revealed UV and blue emission bands. CIE chromaticity coordinates were also calculated from the emission spectrum of Fe³⁺ doped PVA capped CdTe nanoparticles.

Słowa kluczowe

EN

CdTe; PVA; co-precipitation; iron ions; optical absorption; EPR; FT-IR; photoluminescence

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2017
• Tom: Vol. 35, No. 2
• Strony: 390--397
• Opis fizyczny: Bibliogr. 29 poz., rys., tab.

Twórcy

autor

Ravindranadh K.

• Physics Division, Department of Basic Sciences & Humanities, Chirala Engineering College, Chirala-523 157, India

autor

Rao M. C.

• Department of Physics, Andhra Loyola College, Vijayawada-520 008, India

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Uwagi

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).