NDLI: Upconversion luminescence in Er3+ doped and Er3+/Yb3+ codoped zirconia and hafnia nanocrystals excited at 980 nm

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Upconversion luminescence in Er3+ doped and Er3+/Yb3+ codoped zirconia and hafnia nanocrystals excited at 980 nm

Content Provider	Semantic Scholar
Author	Gómez, Luis A. Menezes, Leonardo De S. Ara'ujo, Cid B. De Gonçalves, Rogéria Rocha Ribeiro, Sidney José Lima Messaddeq, Younès
Copyright Year	2010
Abstract	Frequency upconversion (UC) luminescence in nanocrystalline zirconia (ZrO2) and hafnia (HfO2) doped with Er3+ and Yb3+ was studied under continuous-wave excitation at 980 nm. Samples of ZrO2:Er3+, ZrO2:Er3+/Yb3+, and HfO2:Er3+/Yb3+ were prepared by the sol-gel technique and characterized using x-ray diffraction and electron microscopy. A study of the infrared-to-green and infrared-to-red UC processes was performed including the analysis of the spectral and the temporal behavior. The mechanisms contributing to the UC luminescence were identified as excited state absorption and energy transfer among rare-earth ions.Frequency upconversion (UC) luminescence in nanocrystalline zirconia (ZrO2) and hafnia (HfO2) doped with Er3+ and Yb3+ was studied under continuous-wave excitation at 980 nm. Samples of ZrO2:Er3+, ZrO2:Er3+/Yb3+, and HfO2:Er3+/Yb3+ were prepared by the sol-gel technique and characterized using x-ray diffraction and electron microscopy. A study of the infrared-to-green and infrared-to-red UC processes was performed including the analysis of the spectral and the temporal behavior. The mechanisms contributing to the UC luminescence were identified as excited state absorption and energy transfer among rare-earth ions.
Starting Page	113508
Ending Page	113508
Page Count	1
File Format	PDF HTM / HTML
DOI	10.1063/1.3428478
Volume Number	107
Alternate Webpage(s)	https://repositorio.unesp.br/bitstream/handle/11449/26160/WOS000278907100031.pdf?isAllowed=y&sequence=1
Alternate Webpage(s)	https://doi.org/10.1063/1.3428478
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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