News Center

Defects Can “Hulk-Up” Materials

A Berkeley Lab study has shown that just as exposure to gamma radiation transforms Bruce Banner into fictional superhero the Hulk, exposure to alpha-particle radiation can transform thermoelectric materials into far more powerful versions of themselves.

Channeling Valleytronics in Graphene

Berkeley Lab researchers, working at the Advanced Light Source, have discovered topologically protected 1D electron conducting channels at the domain walls of bilayer graphene that should prove useful for valleytronics.

On the Road to Spin-orbitronics

Berkeley Lab researchers have discovered a new way of manipulating the magnetic domain walls in ultrathin magnets that could one day revolutionize the electronics industry through a technology called “spin-orbitronics.”

New Pathway to Valleytronics

Berkeley Lab researchers have uncovered a promising new pathway to valleytronics, a potential quantum computing technology in which information is coded based on the wavelike motion of electrons moving through certain 2D semiconductors.

Solving an Organic Semiconductor Mystery

Organic semiconductors are prized for light emitting diodes (LEDs), field effect transistors (FETs) and photovoltaic cells. As they can be printed from solution, they provide a highly scalable, cost-effective alternative to silicon-based devices. Uneven performances, however, have been a persistent problem. That’s now changed.

From the Bottom Up: Manipulating Nanoribbons at the Molecular Level

Researchers at Lawrence Berkeley National Laboratory and the University of California, Berkeley, have developed a new precision approach for synthesizing graphene nanoribbons from pre-designed molecular building blocks. Using this process the researchers have built nanoribbons that have enhanced properties—such as position-dependent, tunable bandgaps—that are potentially very useful for next-generation electronic circuitry.

Piezoelectricity in a 2D Semiconductor

Berkeley Lab researchers have opened the door to low-power off/on switches in micro-electro-mechanical systems (MEMS) and nanoelectronic devices, as well as ultrasensitive bio-sensors, with the first observation of piezoelectricity in a free standing two-dimensional semiconductor.

Switching to Spintronics

Berkeley Lab researchers used an electric field to reverse the magnetization direction in a multiferroic spintronic device at room temperature, a demonstration that points a new way towards spintronics and smaller, faster and cheaper ways of storing and processing data.

Lord of the Microrings

Berkeley Lab researchers report a significant breakthrough in laser technology with the development of a unique microring laser cavity that can produce single-mode lasing on demand. This advance holds ramifications for a wide range of optoelectronic applications including metrology and interferometry, data storage and communications, and high-resolution spectroscopy.

Competition for Graphene

Berkeley Lab reports the first experimental observation of ultrafast charge transfer in photo-excited MX2 materials, the graphene-like two-dimensional semiconductors. Charge transfer time clocked in at under 50 femtoseconds, comparable to the fastest times recorded for organic photovoltaics.