Sub-micronic, spherical Y2O3:Yb/Er particles comprising clustered nano-units (70 nm) were prepared via ultrasonic spray pyrolysis from pure nitrate precursor solutions with different Yb/Er dopant ratios. The particles were additionally thermally treated at 1100 °C for 12, 24 and 48 h. The structural and morphological characteristics of particles were studied by X-ray powder diffraction, Fourier transform infrared spectroscopy, field-emission scanning electron microscopy, energy dispersive X-ray analysis and specific surface area (BET) and were further correlated with their advanced optical properties. For the recorded up-conversion emissions, originating from the following Er3+ transitions: [2H9/2→4I15/2] in blue (407–420 nm); [2H11/2, 4S3/2→4I15/2] green: 510–590 nm; and [4F9/2→4I15/2] in red (640–720 nm) spectral region, the corresponding lifetimes were acquired in the wide temperature range (10–300 K). The most intense green up-conversion emission with the long decay of 550 ms is re...corded for Y1.97Yb0.02Er0.01O3 particles thermally treated at 1100 °C for 24 h.
Keywords:
up-converter / Y2O3:Yb and Er / luminescence / decay time / spray pyrolysis
TY - JOUR
AU - Lojpur, Vesna
AU - Mančić, Lidija
AU - Vulić, Predrag
AU - Dramićanin, Miroslav
AU - Rabanal, Maria Eugenia
AU - Milošević, Olivera
PY - 2014
UR - https://dais.sanu.ac.rs/123456789/545
AB - Sub-micronic, spherical Y2O3:Yb/Er particles comprising clustered nano-units (70 nm) were prepared via ultrasonic spray pyrolysis from pure nitrate precursor solutions with different Yb/Er dopant ratios. The particles were additionally thermally treated at 1100 °C for 12, 24 and 48 h. The structural and morphological characteristics of particles were studied by X-ray powder diffraction, Fourier transform infrared spectroscopy, field-emission scanning electron microscopy, energy dispersive X-ray analysis and specific surface area (BET) and were further correlated with their advanced optical properties. For the recorded up-conversion emissions, originating from the following Er3+ transitions: [2H9/2→4I15/2] in blue (407–420 nm); [2H11/2, 4S3/2→4I15/2] green: 510–590 nm; and [4F9/2→4I15/2] in red (640–720 nm) spectral region, the corresponding lifetimes were acquired in the wide temperature range (10–300 K). The most intense green up-conversion emission with the long decay of 550 ms is recorded for Y1.97Yb0.02Er0.01O3 particles thermally treated at 1100 °C for 24 h.
T2 - Ceramics International
T1 - Structural, morphological and up-converting luminescence characteristics of nanocrystalline Y2O3:Yb/Er powders obtained via spray pyrolysis
SP - 3089
EP - 3095
VL - 40
IS - 2
DO - 10.1016/j.ceramint.2013.10.002
UR - https://hdl.handle.net/21.15107/rcub_dais_545
ER -
@article{
author = "Lojpur, Vesna and Mančić, Lidija and Vulić, Predrag and Dramićanin, Miroslav and Rabanal, Maria Eugenia and Milošević, Olivera",
year = "2014",
abstract = "Sub-micronic, spherical Y2O3:Yb/Er particles comprising clustered nano-units (70 nm) were prepared via ultrasonic spray pyrolysis from pure nitrate precursor solutions with different Yb/Er dopant ratios. The particles were additionally thermally treated at 1100 °C for 12, 24 and 48 h. The structural and morphological characteristics of particles were studied by X-ray powder diffraction, Fourier transform infrared spectroscopy, field-emission scanning electron microscopy, energy dispersive X-ray analysis and specific surface area (BET) and were further correlated with their advanced optical properties. For the recorded up-conversion emissions, originating from the following Er3+ transitions: [2H9/2→4I15/2] in blue (407–420 nm); [2H11/2, 4S3/2→4I15/2] green: 510–590 nm; and [4F9/2→4I15/2] in red (640–720 nm) spectral region, the corresponding lifetimes were acquired in the wide temperature range (10–300 K). The most intense green up-conversion emission with the long decay of 550 ms is recorded for Y1.97Yb0.02Er0.01O3 particles thermally treated at 1100 °C for 24 h.",
journal = "Ceramics International",
title = "Structural, morphological and up-converting luminescence characteristics of nanocrystalline Y2O3:Yb/Er powders obtained via spray pyrolysis",
pages = "3089-3095",
volume = "40",
number = "2",
doi = "10.1016/j.ceramint.2013.10.002",
url = "https://hdl.handle.net/21.15107/rcub_dais_545"
}
Lojpur, V., Mančić, L., Vulić, P., Dramićanin, M., Rabanal, M. E.,& Milošević, O.. (2014). Structural, morphological and up-converting luminescence characteristics of nanocrystalline Y2O3:Yb/Er powders obtained via spray pyrolysis. in Ceramics International, 40(2), 3089-3095.
https://doi.org/10.1016/j.ceramint.2013.10.002
https://hdl.handle.net/21.15107/rcub_dais_545
Lojpur V, Mančić L, Vulić P, Dramićanin M, Rabanal ME, Milošević O. Structural, morphological and up-converting luminescence characteristics of nanocrystalline Y2O3:Yb/Er powders obtained via spray pyrolysis. in Ceramics International. 2014;40(2):3089-3095.
doi:10.1016/j.ceramint.2013.10.002
https://hdl.handle.net/21.15107/rcub_dais_545 .
Lojpur, Vesna, Mančić, Lidija, Vulić, Predrag, Dramićanin, Miroslav, Rabanal, Maria Eugenia, Milošević, Olivera, "Structural, morphological and up-converting luminescence characteristics of nanocrystalline Y2O3:Yb/Er powders obtained via spray pyrolysis" in Ceramics International, 40, no. 2 (2014):3089-3095,
https://doi.org/10.1016/j.ceramint.2013.10.002 .,
https://hdl.handle.net/21.15107/rcub_dais_545 .
