A5080948356- Advancements in Photolithography Techniques
- 2D Materials and Applications
- Integrated Circuits and Semiconductor Failure Analysis
- Nanofabrication and Lithography Techniques
- Perovskite Materials and Applications
- Chalcogenide Semiconductor Thin Films
- Electron and X-Ray Spectroscopy Techniques
- Force Microscopy Techniques and Applications
- Semiconductor Lasers and Optical Devices
- Semiconductor materials and devices
- Graphene research and applications
- MXene and MAX Phase Materials
- Photonic and Optical Devices
- Silicone and Siloxane Chemistry
- 3D IC and TSV technologies
- Semiconductor materials and interfaces
- Inorganic Fluorides and Related Compounds
- Advanced Surface Polishing Techniques
- Advancements in Battery Materials
- Nanowire Synthesis and Applications
- Advanced optical system design
- Nanoplatforms for cancer theranostics
- Extraction and Separation Processes
- Advanced Thermoelectric Materials and Devices
- Heavy Metals in Plants
Multibeam (United States)
2010-2024
Northwestern University
2016-2022
Urbana University
2020
Stanford University
2013-2015
Uniformed Services University of the Health Sciences
2010
Micron (United States)
2008
Micron (Singapore)
2005
Communications Research Centre Canada
1985
Palo Alto Research Center
1976
Massachusetts Institute of Technology
1974-1976
Here we report that a covalent organic framework (COF), which contains 2,5-di(imine)-substituted 1,4-dihydroxybenzene (diiminol) moieties, undergoes color changes in the presence of solvents or solvent vapor are rapid, passive, reversible, and easily detectable by naked eye. A new visible absorption band appears polar solvents, especially water, suggesting reversible conversion to another species. This reversibility is attributed ability diiminol rapidly tautomerize an iminol/cis-ketoenamine...
To increase the efficiency of bulk heterojunction (BHJ) solar cells beyond 15%, 300 nm thick devices with 0.8 fill factor (FF) and external quantum (EQE) >90% are likely needed. This work demonstrates that numerical device simulators a powerful tool for investigating charge‐carrier transport in BHJ useful rapidly determining what semiconductor properties needed to reach these performance milestones. The electron hole mobility must be ≈10 −2 cm 2 V −1 s order attain FF recombination rate...
Expression of energy filtering to boost thermoelectric performance through grain boundary engineering utilising graphene.
Transparent top electrodes for solid‐state dye‐sensitized solar cells (ssDSCs) allow fabrication of mechanically stacked ssDSC tandems, partially transparent ssDSCs building integration, and on metal foil substrates. A solution‐processed, highly transparent, conductive electrode based PEDOT:PSS [poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate)] spray‐deposited silver nanowires (Ag NWs) is developed as an effective contact ssDSCs. The solution‐deposited using conditions solvents that...
Layered indium selenide (InSe) presents unique properties for high-performance electronic and optoelectronic device applications. However, efforts to process InSe using traditional liquid phase exfoliation methods based on surfactant-assisted aqueous dispersions or organic solvents with high boiling points compromise due residual surface contamination chemical degradation. Here, these limitations are overcome by utilizing a surfactant-free, low point, deoxygenated cosolvent system. The...
Printed 2D materials, derived from solution-processed inks, offer scalable and cost-effective routes to mechanically flexible optoelectronics. With micrometer-scale control broad processing latitude, aerosol-jet printing (AJP) is of particular interest for all-printed circuits systems. Here, AJP utilized achieve ultrahigh-responsivity photodetectors consisting well-aligned, percolating networks semiconducting MoS2 nanosheets graphene electrodes on polyimide substrates. Ultrathin (≈1.2 nm...
Isopycnic density gradient ultracentrifugation (iDGU) has been widely applied to sort nanomaterials by their physical and electronic structure. However, the commonly used density-gradient medium iodixanol a finite maximum buoyant that prevents use of iDGU for high-density nanomaterials. Here, we overcome this limit adding cesium chloride (CsCl) iodixanol, thus increasing its point where two-dimensional nanomaterial rhenium disulfide (ReS2) can be sorted in layer-by-layer manner with iDGU....
Germanium sulfide (GeS) is an emerging layered material with high promise in its two-dimensional (2D) exfoliated form for energy storage applications. While liquid-phase exfoliation (LPE) has been utilized the low-cost, scalable production of related 2D materials, it not yet demonstrated GeS nanosheets due to chemical instability ambient conditions. Here, LPE achieved anhydrous N-methyl-2-pyrrolidone using a customized sealed-tip sonication system, yielding sub-10 nm thick that are...
Abstract WS 2 nanoflakes have great potential as electrode materials of lithium‐ion batteries (LIBs) and sodium‐ion (SIBs) because their unique 2D structure, which facilitates the reversible intercalation extraction alkali metal ions. However, a fundamental understanding electrochemical lithiation/sodiation dynamics especially at nanoscale level, remains elusive. Here, by combining battery measurements, density functional theory calculations, in situ transmission electron microscopy,...
To analyze the solutes leaching from glass containers into aqueous solutions, and to show that these have enzyme activity stabilizing effects in very dilute solutions. Enzyme assays with acetylcholine esterase were used serially succussed diluted (SSD) solutions prepared plastic containers. Aqueous SSD preparations starting various solutes, or water alone, under several conditions, tested for their solute content ability affect stability solution. We confirm acts dissolve constituents vials,...
Abstract Memristive systems present a low‐power alternative to silicon‐based electronics for neuromorphic and in‐memory computation. 2D materials have been increasingly explored memristive applications due their novel biomimetic functions, ultrathin geometry ultimate scaling limits, potential fabricating large‐area, flexible, printed devices. While the switching mechanism in memristors based on single nanosheets is similar conventional oxide memristors, nanosheet composite films complicated...
The semiconductor industry is moving to highly regular designs, or 1D gridded layouts, enable scaling advanced nodes, as well improve process latitude, chip size and energy consumption. fabrication of ICs straightforward. Poly metal layers are arranged into layouts. These layouts facilitate a two-step patterning approach: line-creation step, followed by line-cutting form the desired IC pattern (See Figure 1). first line creation, can be accomplished with variety lithography techniques...
Indium monoselenide (InSe) is an emerging two-dimensional semiconductor with superlative electrical and optical properties whose full potential for high-performance electronics optoelectronics has been limited by the lack of reliable large-area thin-film synthesis methods. The difficulty in InSe lies complexity indium-selenium phase diagram inadequate understanding how this manifested growth thin films. Herein, we present a systematic method synthesizing films pulsed laser deposition...
α-RuCl3 is a layered transition metal halide that possesses range of exotic magnetic, optical, and electronic properties including fractional excitations indicative proximate Kitaev quantum spin liquid (QSL). While previous reports have explored these on idealized single crystals or mechanically exfoliated samples, the scalable production nanosheets has not yet been demonstrated. Here, we perform liquid-phase exfoliation (LPE) through an electrochemically assisted approach, which yields...
Abstract Polymeric thin-film deposition in a capacitively coupled rf glow discharge of styrene has been investigated. A kinetic scheme for the polymerization was proposed which initiation monomers by electron impact followed propagation and termination as conventional polymerization, rate constant being function temperature alone. Four mechanism models were examined, depending on where each reaction step takes place: gas phase or substrate. Free-radical assumed. Experiments carried out at...
193nm Optical lithography has powered the industry's growth for last 10 years and multiple patterning is poised to extend even further. There a growing trend in Logic design manufacturing, with high-volume manufacturing (HVM) firms adopting layout style using unidirectional single-pitch straight lines poly metal layers. These layouts lend themselves complementary approach. First, are patterned lithography. Second, these "cut" form desired layout. In this paper, we present EBDW as complement...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of poly(carbon monofluoride) in a fluorine plasmaR. J. Lagow, L. A. Shimp, D. K. Lam, and R. F. BaddourCite this: Inorg. Chem. 1972, 11, 10, 2568–2570Publication Date (Print):October 1, 1972Publication History Published online1 May 2002Published inissue 1 October 1972https://pubs.acs.org/doi/10.1021/ic50116a063https://doi.org/10.1021/ic50116a063research-articleACS PublicationsRequest reuse permissionsArticle...
Developers of e-beam lithography systems are pursuing diverse strategies to bolster throughput. To achieve parallelism, some efforts focus on building multiple-columns, and others developing columns with multiple beamlets. In this paper, we discuss the benefits throughput a column approach for particular application: Complementary E-Beam Lithography (CEBL). CEBL is novel where system used only pattern smallest features. Everything else patterned existing optical equipment. By working...
Recent developments in optoelectronic broadband switch matrices based on GaAs photoconductive detectors are described. Integrated arrays of crosspoints have been constructed and tested to show 70 dB crosstalk rejection for an array density 100 crosspoints/mm2 at a frequency MHz. Such devices may application large-scale circuit switching networks carrying such signals as high definition television. A 3 X3 with isolation greater than 45 frequencies up 3.8 GHz has also demonstrated....
Single-column e-beam systems are used in production for the detection of electrical defects, but too slow to be small physical and can't meet future inspection requirements. This paper presents a multiplecolumn technology high throughput wafer inspection. Multibeam has developed all-electrostatic columns high-resolution imaging. The elimination magnetic coils enables small; deflection is faster absence hysteresis. Multiple miniaturecolumns assembled an array. An array 100 covers entire...
historically kept it out of mainstream fabs. Thanks to continuing EBDW advances combined with the industry's move unidirectional (1D) gridded layout style, promises cost-efficiently complement 193nm ArF immersion (193i) optical lithography in high volume manufacturing (HVM). Patterning conventional 2D design layouts 193i is a major roadblock device scaling: resolution limitations equipment have led higher mask cost and increased complexity. To overcome challenge, IC designers used 1D "lines...
Abstract The demand for flexible biochemical sensors has increased with advances in computational functionality and wireless communication. Advances materials science biochemistry have enabled the development fabrication of biosensors selective detection biological analytes leveraging ink-printed technologies, including form-factors. However, despite these advances, minimal effort been devoted to translating multi-material, three-electrode electrochemical cell, which is widely regarded as...
Multibeam Corporation has overcome the productivity limitations of conventional single-electron-beam lithography to enable high-speed, flexible, and high-resolution patterning in a range new existing applications. The high-productivity Multicolumn Electron Beam Lithography (MEBL) system combines modular architecture with unique miniature e-beam columns achieve that is taking from lab fab. MEBL exhibits 10 100x most applications compared lithography. Beyond its superior resolution, also...