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Better Organic Electronics

At Berkeley Lab’s Molecular Foundry, scientists have provided the first experimental determination of the pathways by which electrical charge is transported from molecule-to-molecule in an organic thin film. These results also show how such organic films can be chemically modified to improve conductance for superior organic electronics.

Solving a Spintronic Mystery:

A collaboration of Berkeley Lab and Notre Dame researchers appear to have resolved a long-standing controversy regarding the semiconductor gallium manganese arsenide, one of the most promising materials for spintronic technology. They’ve determined the source of the ferromagnetic properties that make gallium manganese arsenide such a hot commodity.

New Path to Flex and Stretch Electronics

Berkeley Lab researchers have developed a promising new inexpensive technique for fabricating large-scale flexible and stretchable backplanes using semiconductor-enriched carbon nanotube solutions. To demonstrate the utility of their carbon nanotube backplanes, the researchers constructed an artificial electronic skin device capable of detecting and responding to touch.

Partnership for Progress in Electronics Strengthened by New Lab-Industry Investment

Through the Center for X-Ray Optics, Berkeley Lab and leading semiconductor manufacturers have mutually invested in major new facilities at the Advanced Light Source for advanced extreme-ultraviolet lithography, including clean rooms, wafer processing facilities, and microlithography test tools too costly for individual manufacturers.

A SHARP New Microscope for the Next Generation of Microchips

Scientists at Berkeley Lab’s Advanced Light Source and Center for X-Ray Optics are working with colleagues at leading semiconductor manufacturers to build SHARP, the world’s most advanced extreme-ultraviolet-light microscope, to study and design the photolithography masks, materials, patterns, and mask architectures essential to producing the next generation of integrated circuits.

An Electronic Bucket Brigade Could Boost Solar Cell Voltages

Some ferroelectric materials can develop extremely high voltages when light falls on them, which might greatly improve solar cells if scientists could figure out how they do it. Researchers at Lawrence Berkeley National Laboratory have solved the mystery for one ferroelectric, bismuth ferrite, revealing a principle that should apply to other materials too. The secret is an electronic “bucket brigade” that passes electrons stepwise from one electrically polarized region to the next.

Berkeley Lab Scientists Unveil an X-ray Technique Called HARPES

Berkeley Lab researchers led the development of a technique called HARPES, for Hard x-ray Angle-Resolved PhotoEmission Spectroscopy, that enables the study of electronic structures deep below material surfaces, including the buried layers and interfaces in nanoscale devices. This could pave the way for smaller logic elements in electronics, novel memory architectures in spintronics, and more efficient energy conversion in photovoltaic cells.

A Manganite Changes its Stripes

Manganites that exhibit colossal magnetoresistance and well-known high-temperature superconductors are among the materials that show their stripes – regions where electrical charges concentrate. Until now, only static stripes have been seen. At the Advanced Light Source’s beamline 12.0.1, scientists have discovered a manganite whose stripes form or fall apart depending on the temperature, simultaneously giving rise to colossal changes in electrical conductivity.

Splitsville for Boron Nitride Nanotubes

Berkeley Lab researchers, working with scientists at Rice University, have developed a technique for mass-producing defect-free boron nitride nanoribbons (BNNRs) of uniform length and thickness. BNNRs are predicted to display magnetic and electronic properties that hold enormous potential for future devices.

Enhancing the Magnetism: Berkeley Researchers Find Enhanced and Controllable Magnetization in Unique Bismuth Ferrite Films

Berkeley Lab researchers have enhanced the spontaneous magnetization in a special form of the popular multiferroic bismuth ferrite. What’s more, they can turn this magnetization “on/off” through the application of an external electric field, a critical ability for the advancement of spintronic technology.