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Up-converting characteristics of Y203:Yb/Er nanocrystalline powders obtained through spray pyrolysis

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2012
7468.pdf (261.8Kb)
Authors
Mančić, Lidija
Lojpur, Vesna
Rabanal, Maria Eugenia
Dramićanin, Miroslav
Milošević, Olivera
Contributors
Obradović, Bojana
Uskoković, Petar
Janaćković, Đorđe T.
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Abstract
Sub-micronic, spherical Y203:Yb/Er particles comprising clustered nano-units were prepared through ultrasonic spray pyrolysis of pure nitrate precursor solutions that contain different Yb/Er dopants ratio (10, 5 and 2). The particles obtained were additionally heat-treated at 1100°C for 12, 24 and 48 hours. Detailed structural and morphological analyses were done through X-ray powder diffraction (XRPD), scanning and transmission electron microscopy (SEM/TEM), specific surface area (BET), particle size distribution (LPS) and Fourier Transform Infrared Spectroscopy (FTIR). Obtained results are further correlated with advanced powder optical properties confirmed by efficient up-conversion emissions of Er3+in: blue (407-420 nm, 2H9/2→4I15/2), green (510-590 nm, 2H11/2, 4S3/2→4I15/2) and red (640-720 nm, 4F9/2→4I15/2) spectra. The corresponding lifetimes in the function of temperature will be also presented and discussed.
Keywords:
ultrasonic spray pyrolysis / Y203:Yb/Er / nanocrystalline powders
Source:
First International Conference Processing, Characterization and Applications of Nanostructured Materials and Nanotechnology, [NanoBelgrade 2012] : Programme & Book of Abstracts, 2012, 63-63
Publisher:
  • Univerzitet u Beogradu, Tehnološko-metalurški fakultet
Projects:
  • Rational design and synthesis of biologically active and coordination compounds and functional materials, relevant for (bio)nanotechnology (RS-172035)

ISBN: 9788674012857

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URI
http://dais.sanu.ac.rs/123456789/535
http://www.itn.sanu.ac.rs/opus4/frontdoor/index/index/docId/803
http://www.itn.sanu.ac.rs/opus4/files/803/Mancic_NanoBelgrade.pdf
http://vinar.vin.bg.ac.rs/handle/123456789/7474
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Vinča

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