Thin films

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Silicon nanowires trap sunlight

Silicon nanowires trap sunlight

Solar cells made from silicon are projected to be a prominent factor in future renewable green energy equations, but so far the promise has far exceeded the reality. While there are now silicon photovoltaics that can convert sunlight into electricity at impressive 20% efficiencies, the cost of this solar power is prohibitive for large-scale use. Researchers with the Lawrence Berkeley National Laboratory (Berkeley Lab), however, are developing a new approach that could substantially reduce these costs.

Stamping microelectromechanical devices onto plastic

Stamping microelectromechanical devices onto plastic

MIT researchers have discovered a way to make microelectromechanical devices, or MEMS, by stamping them onto a plastic film. This discovery should reduce their cost, and open up the possibility of large sheets of sensors that could, one day, cover the wings of an airplane to gauge their structural integrity.

Water may not run uphill, but it practically flies off new surface

Water may not run uphill, but it practically flies off new surface

Engineering researchers at the Univ. of Florida have crafted a flat surface that refuses to get wet. Water droplets skitter across it like ball bearings tossed on ice. They say they it is a nearly perfect hydrophobic surface, but not because the structure they have invented is "perfect".

Tiny crystals under stress display unexpected movement

Johns Hopkins researchers have discovered that, under the right conditions, nanocrystalline materials—like those found in some integrated circuits—exhibit surprising activity in the tiny spaces between the geometric clusters of atoms called nanocrystals, from which they are made. This has implications for those who use thin films or manufacture MEMS.

Flexible solar cells created with silicon wire arrays

Flexible solar cells created with silicon wire arrays

Using arrays of long, thin silicon wires embedded in a polymer substrate, a team of scientists from the California Institute of Technology (Caltech) has created a new type of flexible solar cell that enhances the absorption of sunlight and efficiently converts its photons into electrons.

Graphene electronics

Graphene electronics

A simple one-step process that produces both n-type and p-type doping of large-area graphene surfaces could facilitate use of the promising material for future electronic devices. The doping technique can also be used to increase conductivity in graphene nanoribbons used for interconnects.

Partnership to launch bright, liquid-free future for solar energy

Partnership to launch bright, liquid-free future for solar energy

P2i, a leading maker of liquid repellent nano-coating technology, has teamed up with U.S.-based to commercialize a new plasma process that dramatically reduces the surface energy of a material so that when liquids come into contact with it, they form beads and simply roll off.

UNCD Wafers – Diamond MEMS 101

UNCD Wafers – Diamond MEMS 101

Processing UNCD for incorporation at wafer scale into devices uses the same equipment as for processing silicon (Si). Patterning of UNCD may be done via a hard mask gas etching (see recipe on next page). Diamond windows may be created by backside etching the silicon from the UNCD Wafer. The following UNCD property data provides some starting points for creating devices using UNCD wafers.

Energy-harvesting rubber sheets could power pacemakers

Energy-harvesting rubber sheets could power pacemakers

Power-generating rubber films developed by Princeton Univ. engineers could harness natural body movements such as breathing and walking to power pacemakers, mobile phones and other electronic devices.

Watching crystals grow provides clues to making smoother thin films

Cornell researchers shed new light on how atoms arrange themselves into thin films. The team recreated conditions of layer-by-layer crystalline growth using particles much bigger than atoms, but still small enough that they behave like atoms.

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Lunar tires, space MRSA, and resonating microfluidics

Lunar tires, space MRSA, and resonating microfluidics

I typically attend the annual Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy each year in pursuit of specific coverage. This year, I sought out candidates for coverage in a vacuum technology article, and pulled together some instruments for a spectroscopy guide. But as busy as that kept me, it wasn’t all mass spectrometers and vacuum pumps on the show floor.  

A clean energy America…is it coming or not?

A clean energy America…is it coming or not?

Almost a year ago, the buzz during the downturn was that the economic stimulus will help boost jobs in a sort of national improvement program reminiscent of the 1930s. Our coal would be phased out. Our grids would get smart. Our cars would get hybridized.

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NuGard Coating Ashburn Hill

NuGard Coating Ashburn Hill

NuGard First Response Protective Clothing are lightweight coveralls, jackets, and pants that provide protection from heat and flame while keeping the wearers body temperature constant.

Multi-Touch Music Maker

Multi-Touch Music Maker

Professor David Wessel shows his multi-touch interface that uses computer technologies that allow him to experiment with fine controls to "caress" the instrument.

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Submersible FlowCAM catches particle images and data in-situ and real-time
Submersible FlowCAM catches particle images and data in-situ and real-time

Fluid Imaging Technologies recently introduced its Submersible FlowCAM particle and cell imaging and analysis system at Ocean Sciences 2010 in Portland, Ore. The remote sensing platform can be used for continuous, unattended monitoring tethered to research vessels or autonomous submersibles.

Daytime running light has just two LEDs

The new OSTAR Compact LED from OSRAM has been developed specifically for use in vehicle headlights. Despite drawing just 5 W, the device provides 300 lumens of power and meets ECE/SAE color binning requirements for use on motor vehicles.

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Bioisostere generator
Bioisostere generator

Cresset released a new version of its FieldStere bioisostere generator. FieldStere delivers shorter lead optimization cycles to computational and medicinal chemists by enabling them to choose the best syntheses, to fine-tune portions of lead molecules, and to scaffold hop to expand into new areas of chemical space.

Multi-gas incubator microscope imaging system

Olympus has introduced the VivaView MG (Multi-Gas) incubator microscope, a long-term live cell incubation and imaging system optimized for stem cell, cancer, and other research requiring independent control of both oxygen and carbon dioxide levels, along with other environmental parameters.

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