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Researcher Spotlight: Atom­Thick Material Offers 2D Imaging Possibilities

Rice University scientists have developed a two-­dimensional, atom­-thick, light-­sensitive material called CIS, a single­-layer matrix of copper, indium, and selenium atoms. Sidong Lei, a graduate student, also built a prototype — a three-­pixel charge­-coupled device (CCD) sensor — to prove the material’s ability to capture an image. The optoelectronic memory material may be the basis for future flat imaging devices and two­-dimensional electronics.

Posted in: Articles, Sensors

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Customizing Visual 3D Optical Coatings

There are many ways to coat an optic and optimize the coating for a specific application, some more interesting than others. But any thin film coating process requires raw materials, coating capabilities, deposition chamber(s), coating software, a spectrophotometer, and an efficient production system that can produce the desired coating or effect while keeping within the customer’s requisite specifications. This article will focus on the challenge of customizing a non-polarizing cube beamsplitter for a 3D visual application and detail the steps taken to make this challenge a reality.

Posted in: Articles, Features, Coatings & Adhesives, Optics, Photonics

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Achieve Better Process Controls with Light Cure Technology

In manufacturing, process controls are used to ensure that products are made to the highest standard possible. When effective procedures are laid out for each step in the manufacturing process, it's much easier to reduce the risk of damage, failure, and loss. Employees are able to understand what to do, when to do it, and how to do it well. Good process controls help a company turn out the best version of its product and have fewer headaches along the way. But some technologies lend themselves to smoother processes than others. Light-curable materials in the manufacturing process actually allow for better process controls than other adhesive options. This white paper shows the benefits of using them, and what those process controls look like.

Posted in: White Papers

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Zinc Oxide Materials Power Tiny Energy Harvesting Devices

Many types of smart devices are readily available and convenient to use. The goal now is to make wearable electronics that are flexible, sustainable, and powered by ambient renewable energy. This last goal inspired researchers to explore how the attractive physical features of zinc oxide (ZnO) materials could be used to tap into abundant mechanical energy sources to power micro devices. They discovered that inserting aluminum nitride insulating layers into ZnO-based energy harvesting devices led to a significant improvement of the devices’ performance. The group’s findings are expected to provide an effective approach for realizing “nanogenerators” for self-powered electronic systems such as portable communication devices, healthcare monitoring devices, environmental monitoring devices, and implantable medical devices. Source:

Posted in: News, Electronic Components, Energy Harvesting, Renewable Energy, Metals

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Glass as Electrode Makes Batteries More Efficient

Today’s batteries provide a reliable power supply for our smartphones, electric cars and laptops, but are unable to keep up with the growing demands placed on them. Researchers have discovered a material that may have the potential to double battery capacity: vanadate-borate glass. The glass is being used as a cathode material, which is made of vanadium oxide (V2O5) and lithium-borate (LiBO2) precursors, and was coated with reduced graphite oxide (RGO) to enhance the electrode properties of the material. The vanadate-borate glass powder was used for battery cathodes, which were placed in prototypes for coin cell batteries to undergo numerous charge/discharge cycles. In tests, the glass electrodes demonstrated a vast improvement in these batteries’ capacity and energy density. Source:

Posted in: News, Batteries, Electronic Components, Energy Efficiency

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Photo-Chemical Machining (PCM) of metals…faster & more cost effective than you’d think!

Photo-Chemical Machining (PCM) or photo-etching of metals is a mature process used to create very accurate metal components. This process emerged in the 1960s as an offshoot of the printed circuit board industry. PCM can produce highly complex parts with very fine details, quickly, accurately and economically. Photo etching is a cost effective alternative to stamping, punching, laser cutting, water jet cutting, or electrical discharge machining (EDM) of thin gauge precision parts.

Posted in: Webinars, On-Demand Webinars, Metals

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Microcapsule Method Captures Carbon

Researchers has developed a novel class of materials that enable a safer, cheaper, and more energy-efficient process for removing greenhouse gas from power-plant emissions. The team, led by scientists from Harvard University and Lawrence Livermore National Laboratory, employed a microfluidic assembly technique to produce microcapsules that contain liquid sorbents, or absorbing materials, encased in highly permeable polymer shells. The capsules have significant performance advantages over the carbon-absorbing materials used in current capture and sequestration technology.The new technique employs an abundant and environmentally benign sorbent: sodium carbonate, which is kitchen-grade baking soda. The microencapsulated carbon sorbents (MECS) achieve an order-of-magnitude increase in CO2 absorption rates compared to sorbents currently used in carbon capture. The carbon sorbents are produced using a double-capillary device in which the flow rates of three fluids — a carbonate solution combined with a catalyst for enhanced CO2 absorption, a photo-curable silicone that forms the capsule shell, and an aqueous solution — can be independently controlled.The MECS-based approach could also be tailored to industrial processes like steel and cement production, which are significant greenhouse gas sources.SourceRead other Materials tech briefs.

Posted in: News, Greenhouse Gases, Remediation Technologies

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