Non-aqueous sol–gel synthesis of hybrid rare-earth-doped γ-Ga2O3nanoparticles with multiple organic–inorganic-ionic light-emission features

2015 ◽  
Vol 3 (1) ◽  
pp. 41-45 ◽  
Author(s):  
Roberto Lorenzi ◽  
Alberto Paleari ◽  
Nikita V. Golubev ◽  
Elena S. Ignat'eva ◽  
Vladimir N. Sigaev ◽  
...  

Pure and Eu-doped γ-Ga2O3nanopowders with an organic capping layer were obtained by a benzyl alcohol route. Photoluminescence experiments allowed assigning the strong blue light emission to an aromatic ketone derivative.

2006 ◽  
Vol 24 (6) ◽  
pp. 728-731 ◽  
Author(s):  
Hao Jianhua ◽  
He Guogen ◽  
Huang Xiongwu ◽  
Wu Rui

1996 ◽  
Vol 11 (4) ◽  
pp. 841-849 ◽  
Author(s):  
John Ballato ◽  
Matthew Dejneka ◽  
Richard E. Riman ◽  
Elias Snitzer ◽  
Weimin Zhou

This paper describes ZBLA fluoride glass thin films produced via an inexpensive, low-temperature reactive atmosphere sol-gel approach. Luminescence from erbium at 1.55 μm has been observed in x-ray-amorphous doped films deposited on calcium fluoride, polyimide, sapphire, and silicon substrates. Fluorescence studies of the erbium 4S3/2 → 4I13/2 transition, a characteristic emission for a reduced phonon energy host, were conducted for both sol-gel-derived films and conventionally prepared glass rods. The peak intensity observed from the sol-gel films was blue-shifted by 16 nm with a FWHM value approximately half that measured for the melt-quenched rods. Excitation studies indicate that, unlike conventionally prepared glasses, sol-gel materials suffer from nonradiative relaxation of the 4S3/2 excited state to the 4I9/2 level, where subsequent radiative emission to the 4I15/2 ground state occurs. The proposed source of the quenching mechanism are remnant species inherent to the sol-gel process. While this causes the luminescence behavior of rare-earth-doped sol-gel-derived fluoride materials to be similar to oxide hosts, these remnant species modify the branching ratios, resultantly leading to a novel 824 nm emission when excited at 488 nm.


1999 ◽  
Vol 11 (3) ◽  
pp. 581-588 ◽  
Author(s):  
L. D. Carlos ◽  
V. de Zea Bermudez ◽  
R. A. Sá Ferreira ◽  
L. Marques ◽  
M. Assunção

2010 ◽  
Vol 45 (3-6) ◽  
pp. 475-477 ◽  
Author(s):  
Željka Antić ◽  
Radenka Krsmanović ◽  
Milena Marinović-Cincović ◽  
Miodrag Mitrić ◽  
Miroslav D. Dramićanin

2009 ◽  
Vol 129 (9) ◽  
pp. 1055-1059 ◽  
Author(s):  
Yukari Kishimoto ◽  
Xiaoting Zhang ◽  
Tomokatsu Hayakawa ◽  
Masayuki Nogami

2017 ◽  
Author(s):  
Seika Tokumitsu ◽  
Yukon Murakami ◽  
Hisaya Oda ◽  
Yutaka Kawabe

Author(s):  
Yuan Lin ◽  
Guan-E Wang ◽  
Lina Li ◽  
Chun-Li Hu ◽  
Shisheng Lin ◽  
...  

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