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Document Type:	Artigo
Title:	A comparative study of Er3+ , Er 3+ -Eu 3+ , Er 3+ -Tb3+ , andEr 3+ -Eu 3+ -Tb3+ codoped Y2 O 3 nanoparticles as optical heaters
Authors:	Sobral Júnior, Geraldo Alves Gomes, Maria de Andrade Avila, Jhon Fredy Martinez Rodrigues Júnior, José Joatan Macedo, Zélia Soares Alencar, Marcio Andre Rodrigues Cavalcanti de
Issue Date:	2015
Resumo :	Fluorescence intensity ratio (FIR) technique, based on the thermal coupling of 2H11/2 and 4S3/2 energy levels of erbium ions,was used to study the optical heating behavior of rare earth doped yttrium oxide nanophosphors (Y2O3:Er3+, Y2O3:Er3+-Eu3+,Y2O3:Er3+-Tb3+, and Y2O3:Er3+-Eu3+-Tb3+) synthesized via PVA-assisted sol-gel route. The samples were optically heated byan 800 nm CW diode laser, while the upconverted green emissions were used to measure their temperatures in real time.The experimental results indicate that the studied nanoparticles are promising candidates to applications such as photothermaltreatments and hyperthermia.
Keywords:	Fluorescence intensity Thermal coupling Erbium ions Nanoparticles
ISSN:	1687-4129
Is part of:	Journal of Nanomaterials
Language:	eng
Publisher / Institution :	Hindawi Publishing Corporation
Citation:	SOBRAL JÚNIOR, G. A. et al. A comparative study of Er3+ , Er 3+ -Eu 3+ , Er 3+ -Tb3+ , andEr 3+ -Eu 3+ -Tb3+ codoped Y2 O 3 nanoparticles as optical heaters. Journal of Nanomaterials, New York, n. 1, 2015. Disponível em: https://onlinelibrary.wiley.com/doi/10.1155/2015/373675. Acesso em: 15 maio 2026.
License:	Creative Commons Atribuição 4.0 Internacional (CC BY 4.0)
URI:	https://ri.ufs.br/jspui/handle/riufs/25144
Appears in Collections:	DFI - Artigos de periódicos

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