Conferences related to Colloidal lithography

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2020 IEEE Photovoltaic Specialists Conference (PVSC)

Promote science and engineering of photovoltaic materials, devices, systems and applications


2019 20th International Conference on Solid-State Sensors, Actuators and Microsystems & Eurosensors XXXIII (TRANSDUCERS & EUROSENSORS XXXIII)

The world's premiere conference in MEMS sensors, actuators and integrated micro and nano systems welcomes you to attend this four-day event showcasing major technological, scientific and commercial breakthroughs in mechanical, optical, chemical and biological devices and systems using micro and nanotechnology.The major areas of activity in the development of Transducers solicited and expected at this conference include but are not limited to: Bio, Medical, Chemical, and Micro Total Analysis Systems Fabrication and Packaging Mechanical and Physical Sensors Materials and Characterization Design, Simulation and Theory Actuators Optical MEMS RF MEMS Nanotechnology Energy and Power


2019 Compound Semiconductor Week (CSW)

CSW2019 covers all aspects of compound semiconductors – including growth, processing, devices, physics, spintronics, quantum information, MEMS/NEMS, sensors, solar cells, and novel applications. The conference deals with III-V compounds such as GaAs, InP, and GaN; II-VI compounds such as ZnSe and ZnS; carbon related materials; oxide semiconductors; organic semiconductors etc.


2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)

CLEO®/Europe will showcase the latest developments in a wide range of laser and photonics areas including laser source development, materials, ultrafast science, fibre optics, nonlinear optics, terahertz sources, high-field physics, optical telecommunications, nanophotonics, biophotonics.EQEC will feature the fundamentals of quantum optics, quantum information, atom optics, ultrafast optics, nonlinear phenomena and self-organization, plasmonics and metamaterials, fundamental nanooptics, theoretical and computational photonics.


2019 IEEE 19th International Conference on Nanotechnology (IEEE-NANO)

DNA Nanotechnology Micro-to-nano-scale Bridging Nanobiology and Nanomedicine Nanoelectronics Nanomanufacturing and Nanofabrication Nano Robotics and Automation Nanomaterials Nano-optics, Nano-optoelectronics and Nanophotonics Nanofluidics Nanomagnetics Nano/Molecular Heat Transfer & Energy Conversion Nanoscale Communication and Networks Nano/Molecular Sensors, Actuators and Systems


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Periodicals related to Colloidal lithography

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Computer Graphics and Applications, IEEE

IEEE Computer Graphics and Applications (CG&A) bridges the theory and practice of computer graphics. From specific algorithms to full system implementations, CG&A offers a strong combination of peer-reviewed feature articles and refereed departments, including news and product announcements. Special Applications sidebars relate research stories to commercial development. Cover stories focus on creative applications of the technology by an artist or ...


Electron Device Letters, IEEE

Publishes original and significant contributions relating to the theory, design, performance and reliability of electron devices, including optoelectronic devices, nanoscale devices, solid-state devices, integrated electronic devices, energy sources, power devices, displays, sensors, electro-mechanical devices, quantum devices and electron tubes.


Electronics Packaging Manufacturing, IEEE Transactions on

Design for manufacturability, cost and process modeling, process control and automation, factory analysis and improvement, information systems, statistical methods, environmentally-friendly processing, and computer-integrated manufacturing for the production of electronic assemblies, products, and systems.


Nanobioscience, IEEE Transactions on

Basic and applied papers dealing both with engineering, physics, chemistry, and computer science and with biology and medicine with respect to bio-molecules and cells. The content of acceptable papers ranges from practical/clinical/environmental applications to formalized mathematical theory. TAB #73-June 2001. (Original name-IEEE Transactions on Molecular Cellular and Tissue Engineering). T-NB publishes basic and applied research papers dealing with the study ...


Nanotechnology Magazine, IEEE

The scope of the Nanotechnology Magazine is all aspects of nanotechnology including theory, analysis, design, implementation, and applications related to creation of materials, devices, structures, etc. by manipulating matter at the nanometer length scale and taking advantage of novel (physical, chemical, electrical, mechanical, optical, magnetic, biological..) properties which arise solely due to the nanometer scale. Contents are written at a ...


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Most published Xplore authors for Colloidal lithography

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Xplore Articles related to Colloidal lithography

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Aluminum infrared plasmonic perfect absorbers fabricated by colloidal lithography

2015 11th Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2015

We report on the fabrication of large-area aluminum plasmonic perfect absorber (Al-PA) using colloidal lithography combined with reactive ion etching process. Using the Al-PA, we demonstrate selective thermal emitters and tailor-made molecular vibrational sensing.


Fabrication of asymmetric micro- and nanostructure based on stepwise angle-resolved colloidal lithography

2009 9th IEEE Conference on Nanotechnology (IEEE-NANO), 2009

Due to the process simplicity, the low cost, and the accessibility of scaling down the feature size, colloidal lithography has drawn a great deal of attention once being developed. In this work we succeeded in fabricating asymmetric heterogeneous arrays of metallic NPs and asymmetric nanoshells via stepwise angle-resolved colloidal lithography. The present approach is independent of the sphere sizes of ...


Magnetoplasmonics in split ring-ring structures fabricated with hole-mask colloidal lithography

2016 Progress in Electromagnetic Research Symposium (PIERS), 2016

Summary form only given. Large enhancements of the magneto-optical (MO) activity by the localized surface plasmon resonance (LSPR) have been reported in structures like nanodisks, core-shell nanoparticles, dimers, etc.. In this contribution, we extend this application to the magnetoplasmonic split ring- ring structure. With the hole-mask colloidal lithography method (Fig. 1(a)), a split Au ring is generated on the bottom ...


Enhancing light extraction from III-nitride devices using moth-eye nanostructures formed by colloidal lithography

2016 Compound Semiconductor Week (CSW) [Includes 28th International Conference on Indium Phosphide & Related Materials (IPRM) & 43rd International Symposium on Compound Semiconductors (ISCS), 2016

Summary form only given. We report a novel, reliable, and scalable technique for the surface nanostructuring of GaN by colloidal lithography. Moth-eye protuberances of varying dimensions have been formed on bulk GaN substrates and on samples containing an InGaN multiple-quantum-well active layer, grown by metal organic chemical vapor deposition. Angle-resolved optical characterization and photoluminescence (PL) indicates enhanced transmission through these ...


Human Fibroblast and Human Bone Marrow Cell Response to Lithographically Nanopatterned Adhesive Domains on Protein Rejecting Substrates

IEEE Transactions on NanoBioscience, 2007

The separate influence of topographical and chemical cues on cell attachment and spreading are well documented; however, that of duel-cue substrates is less so. In this study graft copolymers that sterically stabilize biological surfaces were employed alongside nanotopographical features fabricated by colloidal lithography. This resulted in the production of a range of substrates whereby the effect of chemistry and or ...


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Educational Resources on Colloidal lithography

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IEEE-USA E-Books

  • Aluminum infrared plasmonic perfect absorbers fabricated by colloidal lithography

    We report on the fabrication of large-area aluminum plasmonic perfect absorber (Al-PA) using colloidal lithography combined with reactive ion etching process. Using the Al-PA, we demonstrate selective thermal emitters and tailor-made molecular vibrational sensing.

  • Fabrication of asymmetric micro- and nanostructure based on stepwise angle-resolved colloidal lithography

    Due to the process simplicity, the low cost, and the accessibility of scaling down the feature size, colloidal lithography has drawn a great deal of attention once being developed. In this work we succeeded in fabricating asymmetric heterogeneous arrays of metallic NPs and asymmetric nanoshells via stepwise angle-resolved colloidal lithography. The present approach is independent of the sphere sizes of colloidal masks and the chemical nature of materials deposited, while it shows a profound dependence on the registry of colloidal masks with respect to the incidence vapor beam and the incidence angle. Such asymmetric heterogeneous arrays and asymmetric nanoshells are hard to construct by otherwise lithographic techniques.

  • Magnetoplasmonics in split ring-ring structures fabricated with hole-mask colloidal lithography

    Summary form only given. Large enhancements of the magneto-optical (MO) activity by the localized surface plasmon resonance (LSPR) have been reported in structures like nanodisks, core-shell nanoparticles, dimers, etc.. In this contribution, we extend this application to the magnetoplasmonic split ring- ring structure. With the hole-mask colloidal lithography method (Fig. 1(a)), a split Au ring is generated on the bottom Au ring with a Co-dot embedded inside (Fig. 1(b)). By properly optimizing the gap angle of the split ring, the electromagnetic field is redistributed and focused in the MO active Co area, therefore the MO activity obtains a boost and is maximized for the structure with a gap of 60 deg angle, by an enhancement factor of 3 compared to the one without gap (Fig. 1(c)). The EM field redistribution and focus around the gap area is confirmed via EELS-TEM mapping (inset Fig. 1(c)).

  • Enhancing light extraction from III-nitride devices using moth-eye nanostructures formed by colloidal lithography

    Summary form only given. We report a novel, reliable, and scalable technique for the surface nanostructuring of GaN by colloidal lithography. Moth-eye protuberances of varying dimensions have been formed on bulk GaN substrates and on samples containing an InGaN multiple-quantum-well active layer, grown by metal organic chemical vapor deposition. Angle-resolved optical characterization and photoluminescence (PL) indicates enhanced transmission through these samples compared to flat, unstructured surfaces. We analyze the potential mechanisms causing this enhancement, such as recycling of PL pump light, improved first-pass extraction, and improved diffuse scattering. The impact of these effects is evaluated using finite-difference time-domain and effective medium theory simulations. Light extraction with moth-eye nanostructures is compared to state-of-the-art methods for c-plane and semipolar GaN surface roughening.

  • Human Fibroblast and Human Bone Marrow Cell Response to Lithographically Nanopatterned Adhesive Domains on Protein Rejecting Substrates

    The separate influence of topographical and chemical cues on cell attachment and spreading are well documented; however, that of duel-cue substrates is less so. In this study graft copolymers that sterically stabilize biological surfaces were employed alongside nanotopographical features fabricated by colloidal lithography. This resulted in the production of a range of substrates whereby the effect of chemistry and or topography on both on human fibroblast and bone marrow cell adhesion and spreading could be observed. The current studies indicate an enhancement of cell response as a consequence of modifications in material topography, whereas the current selected chemical cues inhibited cell function. Critically, in combination, topography modulated the effects of chemical environment.

  • The effects of colloidal nanotopography on initial fibroblast adhesion and morphology

    Colloidal lithography offers a simple, inexpensive method of producing irregular nanotopographies, a pattern not easily attainable utilizing conventional serial writing processes. Colloids with 20- or 50-nm diameter were utilized to produce such an irregular topography and were characterized by calculating the percentage area coverage of particles. Interparticle and nearest neighbor spacing were also assessed for the individual colloids in the pattern. Two-way analysis of variance (ANOVA) indicated significant differences between the number of fibroblasts adhering to planar, 20-, and 50 -nm-diameter colloidal topographies, the number of fibroblasts adhering to the substrates at the time intervals studied, namely 20 min, 1 h, and 3 h and significant interaction between time and topography on fibroblast adhesion (P<0.01). Tukey tests were utilized for sensitive identification of the differences between the sample means and compounded ANOVA results. Cytoskeletal and general cell morphology were investigated on planar and colloidal substrates, and indicated cells in contact with irregular nanotopographies exhibit many peripheral protrusions while such protrusions are absent in cells on planar control surfaces. These protrusions are rich in microtubules on 20-nm-diameter colloidal surfaces while microfilaments are prevalent on 50-nm-diameter surfaces. Moreover, by 3 h, cells on the colloidal substrates initiate cell-cell adhesions, also absent in controls

  • Nanofabrication of polymer surfaces utilizing colloidal lithography and ion etching

    In this paper, we utilize colloidal lithography based on electrostatic self- assembly of polystyrene colloidal particles onto a polymer surface as a nanoscale mask. The pattern is then transferred to the surface by ion beam etching. Each particle acts as an individual mask, resulting in an array of identical structure. Ion beam exposure etches away the unmasked surface between the particles, so the particle mask pattern can be transferred into the polymer surface. This method allows to nanofabricate bulk polymeric surfaces with systematic variation in relief, structure sizes, and aspect ratios. It is a fast, simple, and reliable method to fabricated different polymeric surfaces even on large area samples (&gt;1 cm<sup>2</sup>). The structural variation is achieved by use of different conditions during the self-assembly of the mask (e.g., different particles sizes) or different ion etching conditions during the pattern transfer (e.g., ion energy, ion flux, ion incident angle, etching time, gas environment)

  • The Colloidal Metamorphosis: Time Division Multiplexing of the Reflectance State

    Specular reflection plays an important role in an image's appearance. However, LCDs don't have sufficient contrast to express specular reflection, and ordinary projector screens only have diffuse-reflection surfaces. A new display system projects ultrasound waves to dynamically change the reflection state of a screen made of a colloidal substance--soap film. The system uses time division multiplexing of the diffuse and specular states to produce realistic appearances. It employs an optical illusion that exploits the characteristics of human sight. Optical measurements and a user study validated this approach's effectiveness.

  • Influence of systematically varied nanoscale topography on the morphology of epithelial cells

    With the knowledge that cells can react to lithographically manufactured nanometer-sized surface objects, our interest concerned whether cells would respond to surface structures of systematically increasing size. Our approach to answer this question was to fabricate surfaces with the same surface chemistry and similar surface roughness but increasing size of structural features. To fabricate large areas of patterned surfaces, required for cell culture studies, we used colloidal lithography utilizing colloidal particles as a template for surface nanostructuring. The fabricated surfaces contained hemispherical nanopillars with diameters ranging from 60 to 170 nm. Changes in cell morphology of a pancreatic epithelial cell line (AR4-2J) were studied by evaluating cell area and cell shape. The latter was studied by applying the cell shape classification method using three shape descriptors. The pancreatic cells responded in a systematic way to the surface nanostructures. The cells spread more and became more nonround when cultured on surfaces with increasing size of the topographic features.



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