Fabrication of inorganic–organic hybrid films for optical waveguide

Jeong, Sunho; Moon, Jooho

doi:10.1016/j.jnoncrysol.2005.08.029

Cited by 15 publications

(8 citation statements)

References 18 publications

(20 reference statements)

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“…Finally, the refractive index increased from 1.40 up to 1.56 with increasing titania content. The high refractive index and the transparency in the visible region make the Ti-PDMS materials developed in this work potential candidates for coatings and optical applications such as LED encapsulation [ 6 , 64 ] and waveguides [ 7 , 65 ].…”

Section: Discussionmentioning

confidence: 99%

“…The progress in organic-inorganic hybrid materials with advanced and multifunctional properties [ 1 , 2 , 3 ] has led to the development of new materials for various optical applications [ 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 ]. The versatility of the sol-gel chemistry offers wide possibilities for synthesis of organic-inorganic materials with desired contents and nanostructures [ 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

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Structure and Optical Properties of Titania-PDMS Hybrid Nanocomposites Prepared by In Situ Non-Aqueous Synthesis

et al. 2017

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Organic-inorganic hybrid materials are attractive due to the combination of properties from the two distinct types of materials. In this work, transparent titania-polydimethylsiloxane hybrid materials with up to 15.5 vol. % TiO2 content were prepared by an in situ non-aqueous method using titanium (IV) isopropoxide and hydroxy-terminated polydimethylsiloxane as precursors. Spectroscopy (Fourier transform infrared, Raman, Ultraviolet-visible, ellipsometry) and small-angle X-ray scattering analysis allowed to describe in detail the structure and the optical properties of the nanocomposites. Titanium alkoxide was successfully used as a cross-linker and titania-like nanodomains with an average size of approximately 4 nm were shown to form during the process. The resulting hybrid nanocomposites exhibit high transparency and tunable refractive index from 1.42 up to 1.56, depending on the titania content.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Structure and Optical Properties of Titania-PDMS Hybrid Nanocomposites Prepared by In Situ Non-Aqueous Synthesis

et al. 2017

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“…The employed heating conditions are chosen to allow the migration of R6G molecules only when the electric field assists the doping. The addition of the photoinitiator IRGACURE184 effectively initiates the radical polymerization between the -C C-bonds via UV irradiation and induces a chain reaction [14][15][16][17]. Using this characteristic reaction, the photolithography patterning of hybrid materials for the optical devices has been investigated.…”

Section: Discussionmentioning

confidence: 99%

Formation of molecular doping patterns in organic–inorganic hybrid films by a capillary electrophoresis doping technique

Taguchi

Yano

Segawa

et al. 2009

Science and Technology of Advanced Materials

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A new technique is proposed for the fabrication of fine patterns of molecular doping in organic-inorganic hybrid materials by the combination of capillary electrophoresis doping (CED) and photolithography. The UV-induced polymerization of -C C-bonds in organic groups yields a fine contrast of structures with the desired pattern in organic-inorganic hybrid films, and CED treatment introduces functional molecules only into unirradiated regions to form the doping patterns of molecules inside the films. The fine patterning of rhodamine-6G doping with from 2 to 4 µm resolution is demonstrated in hybrid films of 10 µm thickness.

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“…After full condensation, DPDMS does not contribute any aliphatic bonds, so optical loss can be reduced, as well. For the same reasons, phenyltrimethoxysilane (PTMS) can be used [ 37 ]. To reduce the refractive index, a precursor with a lower refractive index than MAPTMS should be used.…”

Section: Materials Loss In Sol-gel Materialsmentioning

confidence: 99%

Sol-Gel Material-Enabled Electro-Optic Polymer Modulators

Himmelhuber

Norwood

Enami

et al. 2015

Sensors

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Sol-gels are an important material class, as they provide easy modification of material properties, good processability and are easy to synthesize. In general, an electro-optic (EO) modulator transforms an electrical signal into an optical signal. The incoming electrical signal is most commonly information encoded in a voltage change. This voltage change is then transformed into either a phase change or an intensity change in the light signal. The less voltage needed to drive the modulator and the lower the optical loss, the higher the link gain and, therefore, the better the performance of the modulator. In this review, we will show how sol-gels can be used to enhance the performance of electro-optic modulators by allowing for designs with low optical loss, increased poling efficiency and manipulation of the electric field used for driving the modulator. The optical loss is influenced by the propagation loss in the device, as well as the losses occurring during fiber coupling in and out of the device. In both cases, the use of sol-gel materials can be beneficial due to the wide range of available refractive indices and low optical attenuation. The influence of material properties and synthesis conditions on the device performance will be discussed.

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Fabrication of inorganic–organic hybrid films for optical waveguide

Cited by 15 publications

References 18 publications

Structure and Optical Properties of Titania-PDMS Hybrid Nanocomposites Prepared by In Situ Non-Aqueous Synthesis

Structure and Optical Properties of Titania-PDMS Hybrid Nanocomposites Prepared by In Situ Non-Aqueous Synthesis

Formation of molecular doping patterns in organic–inorganic hybrid films by a capillary electrophoresis doping technique

Sol-Gel Material-Enabled Electro-Optic Polymer Modulators

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