Solid-state lasers based on inorganic–organic hybrid materials obtained by combined sol–gel polymer technology

2004 ◽  
Vol 15 (6) ◽  
pp. 291-301 ◽  
Author(s):  
R. Reisfeld ◽  
A. Weiss ◽  
T. Saraidarov ◽  
E. Yariv ◽  
A. A. Ishchenko
Keyword(s):  
Solid State ◽  
Hybrid Materials ◽  
Sol Gel ◽  
Solid State Lasers ◽  
Organic Hybrid

Investigations on the mobility of novel sol–gel processed inorganic–organic hybrid materials

2001 ◽  
Vol 11 (5) ◽  
pp. 1393-1401 ◽  
Author(s):  
Ekkehard Lindner ◽  
Stefan Brugger ◽  
Stefan Steinbrecher ◽  
Erich Plies ◽  
Hermann A. Mayer
Keyword(s):  
Hybrid Materials ◽  
Sol Gel ◽  
Organic Hybrid

Sol-gel glass solid-state lasers doped with organic molecules

1990 ◽  
Author(s):  
Colin Whitehurst ◽  
Daniel J. Shaw ◽  
Terence A. King
Keyword(s):  
Solid State ◽  
Organic Molecules ◽  
Sol Gel ◽  
Solid State Lasers

Fabrication of Micro-Optical Devices by Holographic Interference of High Photosensitive Inorganic-Organic Hybrid Materials (Photo-HYBIRMER)

2004 ◽  
Vol 846 ◽  
Author(s):  
Dong Jun Kang ◽  
Jin-Ki Kim ◽  
Byeong-Soo Bae
Keyword(s):  
Refractive Index ◽  
Hybrid Materials ◽  
Sol Gel ◽  
Optical Devices ◽  
Surface Structures ◽  
Uv Exposure ◽  
Optical Performance ◽  
Homogeneous Surface ◽  
Organic Hybrid ◽  
Direct Fabrication

ABSTRACTSol-gel derived photosensitive inorganic-organic hybrid materials (Photo-HYBRIMER) containing a large quantity of photoactive molecules exhibit the large changes in both refractive index (over 10-2) and volume (over 30%) on UV exposure. The materials could be used for direct fabrication of micro-optical devices using holographic interference. With the change of the beam number for holographic interference (1-beam, 2-beam, 3-beam and 4-beam interference), various typed micro-optical devices (Fresnel-type lens, 1D- and 2D-typed diffraction gratings) could be easily fabricated. Importantly, the fabricated micro-optical devices exhibited the very homogeneous surface structures and good optical performance.

Solid-state nuclear magnetic resonance characterization of PE–PEG/silica hybrid materials prepared by microwave-assisted sol-gel process

2007 ◽  
Vol 22 (12) ◽  
pp. 3516-3525 ◽  
Author(s):  
Marco Geppi ◽  
Giulia Mollica ◽  
Silvia Borsacchi ◽  
Michele Marini ◽  
Maurizio Toselli ◽  
...  
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Solid State ◽  
Magnetic Resonance ◽  
Microwave Heating ◽  
Hybrid Materials ◽  
Sol Gel ◽  
Magic Angle Spinning ◽  
Conventional Heating ◽  
Magic Angle ◽  
Nuclear Magnetic

Organic–inorganic hybrid materials were prepared by sol-gel processes starting from tetraethoxysilane (TEOS) and a triethoxysilane-terminated polyethylene–b-poly(ethylene glycol) copolymer (PE–PEG–Si). Curing of the initial reactant solution was carried out under different reaction conditions, and the materials so obtained were investigated by solid-state nuclear magnetic resonance (NMR). In particular, the molecular structure resulting from a conventional oven heating was compared with that obtained by unconventional microwave heating. The results highlighted that the extent of condensation reactions occurring over several hours under conventional heating is very similar to that resulting in 1 min under microwave heating. Additionally, 29Si–magic angle spinning (MAS) spectra showed that even though the overall extent of cross-linking in the inorganic network is only slightly affected by the thermal history of the sample, significantly different distributions of silicon sites can be present. 13C–CP/MAS selective spectra revealed the presence of PE “crystalline” domains within the organic phase, not detectable by differential scanning calorimetry (DSC). Finally, 1H–MAS spectra showed that different hydrogen-bond interactions are present in samples obtained under different curing conditions.

Novel inorganic/organic hybrid materials based on blown soybean oil with sol–gel precursors

2001 ◽  
Vol 42 (1-2) ◽  
pp. 29-37 ◽  
Author(s):  
Ganghua Teng ◽  
Joseph R Wegner ◽  
Greta J Hurtt ◽  
Mark D Soucek
Keyword(s):  
Soybean Oil ◽  
Hybrid Materials ◽  
Sol Gel ◽  
Organic Hybrid

Preparation and characterization of organic-inorganic hybrid materials incorporating diphosphino moieties. Study of the accessibility of the phosphorus atoms included into the material

2000 ◽  
Vol 78 (11) ◽  
pp. 1519-1525 ◽  
Author(s):  
Jean-Philippe Bezombes ◽  
Claude Chuit ◽  
Robert JP Corriu ◽  
Catherine Reyé
Keyword(s):  
Solid State ◽  
Hybrid Materials ◽  
Sol Gel ◽  
Inorganic Hybrid ◽  
Sol Gel Process ◽  
Inorganic Network

The hydrolysis-polycondensation by the sol-gel process of the aromatic diphosphines (X3SiC6H4)2PC6H4P(C6H4SiX3)2, which are rigid molecules bearing four hydrolysable SiX3 groups (X = OiPr, H), leads to new organic-inorganic hybrid materials, characterized by solid state 13C, 29Si, and 31P NMR spectroscopies. The accessibility of the phosphorus centres incorporated into the xerogel obtained from the diphosphine with X = OiPr has been studied. All the phosphorus atoms reacted quantitatively with H2O2, S8, and CH3I but only 20% with the more bulky reagent W(CO)5·THF. This result is explained by the rigidity of the inorganic network resulting from the high number of hydrolysable Si-OiPr groups in the precursor.Key words : Diphosphines, sol-gel process, xerogels, solid 31P NMR.

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