Laser direct writing of high refractive index polymer/TiO2 nanocomposites

Guo, Qingchuan; Ghadiri, Reza; Xiao, Shuzhang; Esen, Cemal; Medenbach, Olaf; Ostendorf, Andreas

doi:10.1117/12.906688

Cited by 5 publications

(10 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For demonstration of 3D structure fabrication, the woodpile structure was chosen. The 3D structures both at low (0.16 wt % TiO 2 nanoparticles) and high (2.56 wt % TiO 2 nanoparticles) concentrations are generated with a writing speed of 2.0 mm/s and with a laser power of 1.4 mW [15]. The resulting 2PP-fabricated structures contain amorphous TiO 2 nanoparticles, which were demonstrated by XRD analysis.…”

Section: Optical Characterizationmentioning

confidence: 99%

“…At room temperature XRD curves exhibit that TiO 2 nanoparticles have amorphous structure [15]. The refractive index of crystalline nanoparticles is higher than that of amorphous [15,24].…”

Section: X-ray Diffraction (Xrd) Analysismentioning

confidence: 99%

“…The refractive index of crystalline nanoparticles is higher than that of amorphous [15,24]. In order to obtain the TiO 2 crystals, we investigated the nanoparticles at different temperature.…”

Section: X-ray Diffraction (Xrd) Analysismentioning

confidence: 99%

“…In addition, each TiO 2 sol in this range was dried and the solvent was completely evaporated on the hotplate. TiO 2 nanoparticles concentration in polymer was calculated with the linear fitting [15]:…”

Section: Preparation Of Photosensitive Nanocomposites Using Tio 2 Solmentioning

confidence: 99%

“…Photosensitive nanocomposites can be synthesized by adding TiO 2 nanoparticles. In comparision with common photoresists these materials have been applied to fabricate microstructures by two-photon polymerization (2PP) [13][14][15][16]. 2PP processing is a polymerization process initiated by two-photon absorption (2PA).…”

mentioning

confidence: 99%

See 4 more Smart Citations

Comparison of in Situ and ex Situ Methods for Synthesis of Two-Photon Polymerization Polymer Nanocomposites

et al. 2014

Self Cite

View full text Add to dashboard Cite

Abstract:This article reports about nanocomposites, which refractive index is tuned by adding TiO 2 nanoparticles. We compare in situ/ex situ preparation of nanocomposites. Preparation procedure is described, properties of nanocomposites are compared, and especially we examine the applicability of two-photon polymerization (2PP) of synthesized nanocomposites. All prepared samples exhibit suitable optical transparency at specific laser wavelengths. Three-dimensional structures were generated by means of two-photon polymerization effect induced by a femtosecond laser.

show abstract

Section: Optical Characterizationmentioning

confidence: 99%

“…At room temperature XRD curves exhibit that TiO 2 nanoparticles have amorphous structure [15]. The refractive index of crystalline nanoparticles is higher than that of amorphous [15,24].…”

Section: X-ray Diffraction (Xrd) Analysismentioning

confidence: 99%

Section: X-ray Diffraction (Xrd) Analysismentioning

confidence: 99%

Section: Preparation Of Photosensitive Nanocomposites Using Tio 2 Solmentioning

confidence: 99%

mentioning

confidence: 99%

See 3 more Smart Citations

Comparison of in Situ and ex Situ Methods for Synthesis of Two-Photon Polymerization Polymer Nanocomposites

et al. 2014

Self Cite

View full text Add to dashboard Cite

show abstract

Three‐Dimensional Printing of Multifunctional Nanocomposites: Manufacturing Techniques and Applications

2016

View full text Add to dashboard Cite

The integration of nanotechnology into three-dimensional printing (3DP) offers huge potential and opportunities for the manufacturing of 3D engineered materials exhibiting optimized properties and multifunctionality. The literature relating to different 3DP techniques used to fabricate 3D structures at the macro- and microscale made of nanocomposite materials is reviewed here. The current state-of-the-art fabrication methods, their main characteristics (e.g., resolutions, advantages, limitations), the process parameters, and materials requirements are discussed. A comprehensive review is carried out on the use of metal- and carbon-based nanomaterials incorporated into polymers or hydrogels for the manufacturing of 3D structures, mostly at the microscale, using different 3D-printing techniques. Several methods, including but not limited to micro-stereolithography, extrusion-based direct-write technologies, inkjet-printing techniques, and popular powder-bed technology, are discussed. Various examples of 3D nanocomposite macro- and microstructures manufactured using different 3D-printing technologies for a wide range of domains such as microelectromechanical systems (MEMS), lab-on-a-chip, microfluidics, engineered materials and composites, microelectronics, tissue engineering, and biosystems are reviewed. Parallel advances on materials and techniques are still required in order to employ the full potential of 3D printing of multifunctional nanocomposites.

show abstract

Multiphoton Lithography of Organic Semiconductor Devices for 3D Printing of Flexible Electronic Circuits, Biosensors, and Bioelectronics

et al. 2022

View full text Add to dashboard Cite

In recent years, 3D printing of electronics have received growing attention due to their potential applications in emerging fields such as nanoelectronics and nanophotonics. Multiphoton lithography (MPL) is considered the state‐of‐the‐art amongst the microfabrication techniques with true 3D fabrication capability owing to its excellent level of spatial and temporal control. Here, a homogenous and transparent photosensitive resin doped with an organic semiconductor material (OS), which is compatible with MPL process, is introduced to fabricate a variety of 3D OS composite microstructures (OSCMs) and microelectronic devices. Inclusion of 0.5 wt% OS in the resin enhances the electrical conductivity of the composite polymer about 10 orders of magnitude and compared to other MPL‐based methods, the resultant OSCMs offer high specific electrical conductivity. As a model protein, laminin is incorporated into these OSCMs without a significant loss of activity. The OSCMs are biocompatible and support cell adhesion and growth. Glucose‐oxidase‐encapsulated OSCMs offer a highly sensitive glucose sensing platform with nearly tenfold higher sensitivity compared to previous glucose biosensors. In addition, this biosensor exhibits excellent specificity and high reproducibility. Overall, these results demonstrate the great potential of these novel MPL‐fabricated OSCM devices for a wide range of applications from flexible bioelectronics/biosensors, to nanoelectronics and organ‐on‐a‐chip devices.

show abstract

Laser direct writing of high refractive index polymer/TiO2 nanocomposites

Cited by 5 publications

References 0 publications

Comparison of in Situ and ex Situ Methods for Synthesis of Two-Photon Polymerization Polymer Nanocomposites

Comparison of in Situ and ex Situ Methods for Synthesis of Two-Photon Polymerization Polymer Nanocomposites

Three‐Dimensional Printing of Multifunctional Nanocomposites: Manufacturing Techniques and Applications

Multiphoton Lithography of Organic Semiconductor Devices for 3D Printing of Flexible Electronic Circuits, Biosensors, and Bioelectronics

Contact Info

Product

Resources

About