Enhanced Luminescence Characteristics of Mesophase Silica Thin Films Doped with In-Situ-Formed Rare Earth Complexes

2016 ◽  
Vol 8 (1) ◽  
pp. 122-127 ◽  
Author(s):  
Sang Hoon Choi ◽  
Seok-Jun Seo ◽  
Dan Zhao ◽  
Kyoung-Tae Park ◽  
Bum Sung Kim ◽  
...  
Keyword(s):  
Thin Films ◽  
Rare Earth ◽  
Rare Earth Complexes ◽  
Silica Thin Films ◽  
Enhanced Luminescence ◽  
Luminescence Characteristics

Formation and characterization of high-density silver nanoparticles embedded in silica thin films by “in situ” self-reduction

2001 ◽  
Vol 16 (10) ◽  
pp. 2934-2938 ◽  
Author(s):  
G. Compagnini ◽  
M. M. Fragal´ ◽  
L. D'Urso ◽  
C. Spinella ◽  
O. Puglisi
Keyword(s):  
Thin Films ◽  
Silver Nanoparticles ◽  
High Density ◽  
Silver Particles ◽  
X Ray Diffraction ◽  
Optical Extinction ◽  
Organometallic Precursor ◽  
Silica Thin Films ◽  
20 Nm

Silver nanoparticles (10–20 nm) embedded into silica thin films have been obtained through the use of a silver organometallic precursor compound dissolved in Spin-On-Glass and subsequently spinned onto suitable substrates. In this paper we present a study of the shape, size, and distribution of silver particles through the use of microscopes, x-ray diffraction, and optical extinction. It has been observed that the obtained films are stable for annealing up to 500 °C with a progressive degradation above this temperature. Furthermore it is possible to obtain high-density silver particles up to 15% in weight without affecting the cluster size and shape.

Enhanced luminescence of silica thin films co-doped with Er3+ and Yb3+

1999 ◽  
Vol 340 (1-2) ◽  
pp. 230-232 ◽  
Author(s):  
Gang Gu ◽  
P.P Ong ◽  
Jinhua Cai ◽  
Wei Yang ◽  
Youwei Du ◽  
...  
Keyword(s):  
Thin Films ◽  
Silica Thin Films ◽  
Enhanced Luminescence ◽  
Co Doped

In situ IR ellipsometry study of the adhesion and growth of plasma deposited silica thin films on stainless steel substrates

1996 ◽  
Vol 290-291 ◽  
pp. 264-270 ◽  
Author(s):  
N. Bertrand ◽  
B. Drévillon ◽  
J.E. Klemberg-Sapieha ◽  
L. Martinu
Keyword(s):  
Thin Films ◽  
Stainless Steel ◽  
Silica Thin Films ◽  
In Situ Ir ◽  
Steel Substrates

In Situ Fluorescence Probing of Molecular Mobility and Chemical Changes during Formation of Dip-Coated Sol−Gel Silica Thin Films

2000 ◽  
Vol 12 (1) ◽  
pp. 231-235 ◽  
Author(s):  
Michael H. Huang ◽  
Hermes M. Soyez ◽  
Bruce S. Dunn ◽  
Jeffrey I. Zink
Keyword(s):  
Thin Films ◽  
Molecular Mobility ◽  
Sol Gel ◽  
Chemical Changes ◽  
Silica Thin Films ◽  
Fluorescence Probing

Enhanced Luminescence From Rare Earth Doped Thin Films

1994 ◽  
Vol 348 ◽  
Author(s):  
B. L. Olmsted ◽  
M. L. Jones
Keyword(s):  
Thin Films ◽  
Rare Earth ◽  
Molecular Beam Epitaxy ◽  
Experimental Work ◽  
Molecular Beam ◽  
Rare Earth Ions ◽  
Optimum Thickness ◽  
Narrow Resonance ◽  
Enhanced Luminescence ◽  
Rare Earth Doped

ABSTRACTResults of a study of the luminescence of rare earth ions in crystalline thin films grown on reflective substrates will be presented. As an example, the luminescence of Sm2+:CaF2 films has been calculated as a function of the separation between the active layer and a silicon substrate. These calculations involve coupling the narrow resonance of the rare earth ions to the electromagnetic modes of the film. Results including the optimum thickness for enhanced luminescence will be presented. Experimental work on Sm2+:CaF2 films grown on Si by molecular beam epitaxy will also be discussed.

TIME-RESOLVED IN SITU GISAXS EXPERIMENT OF EVAPORATION-INDUCED SELF-ASSEMBLY OF CTAB TEMPLATED SILICA THIN FILMS UNDER CONTROLLED HUMIDITY

2005 ◽  
Vol 04 (05n06) ◽  
pp. 873-878 ◽  
Author(s):  
S. DOURDAIN ◽  
M. COLAS ◽  
J. F. BARDEAU ◽  
O. GANG ◽  
B. OCKO ◽  
...  
Keyword(s):  
Thin Films ◽  
Self Assembly ◽  
Silica Matrix ◽  
Time Resolved ◽  
Silica Thin Films ◽  
Short Period ◽  
Cylindrical Micelles ◽  
Evaporation Induced Self Assembly ◽  
Morphologic Changes

The influence of controlled humidity on the phase transformation of CTAB templated silica thin films is studied by time-resolved in situ GISAXS measurements. It is shown that during a short period of time the silica matrix is flexible enough to follow the morphologic changes of the cylindrical micelles into spherical ones. During this time water can be uptaken and outtaken from the film. The evolution of the lattice parameters upon cycling dry and humid air is presented and discussed.

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