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A Different Type of 2D Semiconductor

Peidong image peovskite best

Berkeley Lab researchers have produced the first atomically thin 2D sheets of organic-inorganic hybrid perovskites. These ionic materials exhibit optical properties not found in 2D covalent semiconductors such as graphene, making them promising alternatives to silicon for future electronic devices.

Making 3D Objects Disappear

Xiang Zhang feature image cloak

Berkeley researchers have devised an ultra-thin invisibility “skin” cloak that can conform to the shape of an object and conceal it from detection with visible light. Although this cloak is only microscopic in size, the principles behind the technology should enable it to be scaled-up to conceal macroscopic items as well.

Defects Through the Looking Glass

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Berkeley Lab researchers have demonstrated a new method that can be applied to study individual defects in a widely used bulk insulating material, hexagonal boron nitride (h-BN), by employing scanning tunneling microscopy (STM).

Soaking Up Carbon Dioxide and Turning it into Valuable Products

Structural model showing a covalent organic framework (COF)  embedded with a cobalt porphyrin.

Berkeley Lab researchers have incorporated molecules of porphyrin CO2 catalysts into the sponge-like crystals of covalent organic frameworks (COFs) to create a molecular system that not only absorbs CO2, but also selectively reduces it to CO, a primary building block for a wide range of chemical products.

Another Milestone in Hybrid Artificial Photosynthesis

Peidong Yang CJC Bioinorganic Solar to Chemical Text

Berkeley Lab researchers using a bioinorganic hybrid approach to artificial photosynthesis have combined semiconducting nanowires with select microbes to create a system that produces renewable molecular hydrogen and uses it to synthesize carbon dioxide into methane, the primary constituent of natural gas.

At the American Chemical Society Meeting in Boston: Berkeley Lab’s Paul Alivisatos and Noah Bronstein Discuss Nanoparticles and Solar Energy Applications

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At the ACS Meeting in Boston, Berkeley Lab Director Paul Alivisatos discussed quantum dots and next generation luminescent solar concentrators (LSCs).

Surprising Discoveries about 2D Molybdenum Disulfide

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Working at the Molecular Foundry, Berkeley Lab researchers used their “Campanile” nano-optical probe to make some surprising discoveries about molybdenum disulfide, a member of the “transition metal dichalcogenides (TMDCs) semiconductor family whose optoelectronic properties hold great promise for future nanoelectronic and photonic devices.

Meet the High-Performance Single-Molecule Diode

Researchers from Berkeley Lab and Columbia University have
created the world’s highest-performance single-molecule diode using a combination of gold electrodes and an ionic solution. (Image courtesy of Latha Venkataraman, Columbia University)

Researchers from Columbia University and Berkeley Lab have created the world’s highest-performance single-molecule diode. Development of a functional single-molecule diode is a major pursuit of the electronics industry.

Opening a New Route to Photonics

In this adiabatic elimination scheme, the movement of light through two outer waveguides is controlled via a “dark” middle waveguide that does not accumulate any light. (Image by Zhosia Rostomian)

Berkeley scientists have developed a technique for effectively controlling pulses of light in closely packed nanoscale waveguides, an essential requirement for ultrahigh density, ultracompact integrated photonic circuitry.

A New Look at Surface Chemistry

Jim Ciston feature image

A multi-institutional team of researchers, including scientists from Berkeley Lab, have used a new scanning electron microscopy technique to resolve the unique atomic structure at the surface of a material. This new technique holds promise for the study of catalysis, corrosion and other critical chemical reactions.