Upconversion fluorescence spectroscopy in rare earth doped sol-gel nano-glass ceramics

Author(s):  
Luciano A. Bueno ◽  
Artur S. da Gouveia-Neto ◽  
Andréia F. da Silva ◽  
Diógenes S. Moura ◽  
Elias A. da Silva ◽  
...  
2012 ◽  
Vol 96 (2) ◽  
pp. 476-480 ◽  
Author(s):  
Go Kawamura ◽  
Ryota Yoshimura ◽  
Kazunari Ota ◽  
Song-Yul Oh ◽  
Norio Hakiri ◽  
...  

2009 ◽  
Vol 206 (10) ◽  
pp. 2249-2254 ◽  
Author(s):  
A. Santana-Alonso ◽  
A. C. Yanes ◽  
J. Méndez-Ramos ◽  
J. del-Castillo ◽  
V. D. Rodríguez

2008 ◽  
Author(s):  
Luciano A. Bueno ◽  
Artur da S. Gouveia-Neto ◽  
Raphael Fonseca do Nascimento ◽  
Elias Arcanjo da Silva ◽  
Valberes B. do Nascimento ◽  
...  

Materials ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 6871
Author(s):  
Mihail Secu ◽  
Corina Secu ◽  
Cristina Bartha

Rare-earth doped oxyfluoride glass ceramics represent a new generation of tailorable optical materials with high potential for optical-related applications such as optical amplifiers, optical waveguides, and white LEDs. Their key features are related to the high transparency and remarkable luminescence properties, while keeping the thermal and chemical advantages of oxide glasses. Sol-gel chemistry offers a flexible synthesis approach with several advantages, such as lower processing temperature, the ability to control the purity and homogeneity of the final materials on a molecular level, and the large compositional flexibility. The review will be focused on optical properties of sol-gel derived nano-glass ceramics related to the RE-doped luminescent nanocrystals (fluorides, chlorides, oxychlorides, etc.) such as photoluminescence, up-conversion luminescence, thermoluminescence and how these properties are influenced by their specific processing, mostly focusing on the findings from our group and similar ones in the literature, along with a discussion of perspectives, potential challenges, and future development directions.


2011 ◽  
Vol 13 (12) ◽  
pp. 7295-7301 ◽  
Author(s):  
A. C. Yanes ◽  
J. del-Castillo ◽  
J. Méndez-Ramos ◽  
V. D. Rodríguez

2004 ◽  
Vol 458 (1-2) ◽  
pp. 274-280 ◽  
Author(s):  
H. Guo ◽  
W. Zhang ◽  
L. Lou ◽  
A. Brioude ◽  
J. Mugnier

Author(s):  
Lam Thi Ngoc Tran ◽  
Damiano Massella ◽  
Lidia Zur ◽  
Alessandro Chiasera ◽  
Stefano Varas ◽  
...  

The development of efficient luminescent systems, such as microcavities, solid state lasers, integrated optical amplifiers, optical sensors is the main topic in glass photonics. The building blocks of these systems are glass-ceramics activated by rare earth ions because they exhibit specific morphologic, structural and spectroscopic properties. Among various materials that could be used as nanocrystals to be imbedded in silica matrix, tin dioxide presents some interesting peculiarities, e.g. the presence of tin dioxide nanocrystals allows increase in both solubility and emission of rare earth ions. Here, we focus our attention on Er3+ - doped silica – tin dioxide photonic glass-ceramics fabricated by sol-gel route. Although the SiO2-SnO2:Er3+ could be fabricated in different geometrical systems: thin films, monoliths and planar waveguides we herein limit ourselves to the monoliths. The effective role of tin dioxide as luminescence sensitizer for Er3+ ions is confirmed by spectroscopic measurements and detailed fabrication protocols are discussed.


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