Tag Archives: semiconductors

New Discovery Could Better Predict How Semiconductors Weather Abuse

Research by Berkeley Lab scientists could speed development of solar-fuel generators

Mimicking nature is not easy, but new insights by researchers at the Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) could help create a viable artificial system of photosynthesis. (more…)

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UChicago researchers develop artificial, bonelike material for use with medical devices

Researchers have developed a new approach for better integrating medical devices with biological systems. The researchers, led by Bozhi Tian, assistant professor in chemistry at the University of Chicago, have developed the first skeleton-like silicon spicules ever prepared via chemical processes. (more…)

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Yale’s New Microscope Brings Atoms’ Identities into Focus

Yale’s acquisition of a powerful new transmission electron microscope (TEM) is expected to transform researchers’ ability to examine and manipulate atom-scale materials and devices on campus.

The approximately $2 million, state-of-the-art microscope offers atomic resolution for both physical structure and chemical composition, as well as significantly faster processing times than other devices on campus. It is the first unit of this specific TEM model acquired for university laboratory use. (more…)

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Nanocrystals Go Bare: Berkeley Lab Researchers Strip Material’s Tiny Tethers

Researchers with the U.S. Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab) have discovered a universal technique for stripping nanocrystals of tether-like molecules that until now have posed as obstacles for their integration into devices. These findings could provide scientists with a clean slate for developing new nanocrystal-based technologies for energy storage, photovoltaics, smart windows, solar fuels and light-emitting diodes.

Nanocrystals are typically prepared in a chemical solution using stringy molecules called ligands chemically tethered to their surface. These hydrocarbon-based or organometallic molecules help stabilize the nanocrystal, but also form an undesirable insulating shell around the structure. Efficient and clean removal of these surface ligands is challenging and has eluded researchers for decades. (more…)

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Telecommunications Wavelength Quantum Dot Laser Grown on Silicon Substrate

A new generation of high speed, silicon-based information technology has been brought a step closer by researchers in the Department of Electronic and Electrical Engineering at UCL and the London Centre for Nanotechnology. The team’s research, published in Nature Photonics journal, provides the first demonstration of an electrically driven, quantum dot laser grown directly on a silicon substrate (Si) with a wavelength (1300-nm) suitable for use in telecommunications. (more…)

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Made in IBM Labs: New Chip Technology Paves the Way to a Faster Internet

*Helps networks to keep pace with exploding number of internet users — from people to machines*

ARMONK, N.Y., – 09 Nov 2010: IBM today announced a new chip-making technology that can be used to create advanced semiconductors that can keep pace with the exploding number of internet-connected devices and the tidal wave of data they are generating.

The Cu-32 Custom Logic offering employs unique IBM technology — designed by IBM Research — to dramatically increase the memory capacity and processing speeds of chips used in fiber-optic and wireless networks, and in such gear as routers and switches. The technology can help manufacturers and network operators handle the data deluge driven by consumers’ appetites for smart phones and other Web-connected devices. (more…)

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