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X-Ray Experiments Zero in on COVID-19 Antibodies

In the fight against SARS-CoV-2, scientists have been working on identifying neutralizing antibodies that could be used in preventative treatments or as post-exposure therapies. The latest findings, which include data from the ALS, indicate that antibodies from SARS survivors could potently block entry of SARS-CoV-2 into host cells. Read more »PPT-icon-35

Masks On, Ready to Work: Meet the People Supporting COVID-19 Science

David Richardson’s job is literally to make sure the light stays on. But it’s not just any light—it’s a very special x-ray light that could play a crucial role in an eventual treatment for COVID-19. Richardson is an operator at the ALS, and is one of a handful of workers providing essential services to scientists working on COVID-19-related research. Read more »

A Forked Path for Superconductivity

Uranium ditelluride (UTe2) exhibits a form of superconductivity that could, in theory, enable fault-tolerant quantum computing. Angle-resolved photoemission spectroscopy revealed several aspects of the material’s unusual electronic environment, including one-dimensional conducting channels that are orthogonally oriented. Read more »

Efficient Organic Solar Cell with 16.88% Efficiency Enabled by Refined Acceptor Crystallization and Morphology with Improved Charge Transfer and Transport Properties

Feng Liu and co‐workers report a detailed structure‐performance relationship to help understand the success of Y6 non‐fullerene acceptors. Through the analysis of the single crystal structure of Y6, it is found that Y6 forms a polymer‐like conjugated backbone through its banana‐shaped structure and π‐π interactions between molecules, and forms a 2D electron transport network under the ordered arrangement of the lattice. Read more »

Divergent Adsorption-Dependent Luminescence of Amino-Functionalized Lanthanide Metal–Organic Frameworks for Highly Sensitive NO2 Sensors

A novel gas-sensing mechanism exploiting lanthanide luminescence modulation upon NO2 adsorption is demonstrated. Two isostructural lanthanide MOFs are used, including an amino group as the recognition center for NO2. Energy transfer from the ligands to Ln is strongly dependent on the presence of NO2, resulting in an unprecedented photoluminescent sensing scheme. Read more »

2020 User Meeting Will Be Held Online

Our UEC is continually adapting to the rapidly changing status quo as the COVID-19 pandemic continues. After careful considerations and discussions with ALS management, we have decided to change the format of the ALS User Meeting 2020 to a virtual (online) meeting. Read more »

Shelter-in-Place Message from Director Steve Kevan

A far cry from the familiar, bustling ALS, our facility is running at minimal operations and the majority of our staff is working from home. I speak for the entire ALS staff when I write that we miss all of you, and hope you are healthy and safe. Read more »

Coordination Engineering of Single-Crystal Precursor for Phase Control in Ruddlesden-Popper Perovskite Solar Cells

Chaochao Qin, Alex K.-Y. Jen, Kai Yao and co-workers describe a generic guideline for fine tuning colloidal properties of 2D perovskites via coordination engineering of the single-crystal precursor solution. In nonpolar co-solvent media, the derived colloidal templates prefer to grow along the vertical direction with a narrow phase variation, elucidating the critical role of colloidal chemistry in low-dimensional perovskite solar cells. Read more »

April 2020 Message from the User Office: Proposal Updates

Plans will be developed to phase in research at the ALS, becoming more robust as the COVID-19 timeline plays out. In the meantime, the ALS user office database is tracking the lost beamtime for each proposal. Users can see this information by viewing their proposals in ALSHub and noting the discrepancy between allocated and scheduled beamtime. Read more »

Porous Electrolyte Frameworks for All-Solid-State Batteries

With the help of microtomography at the ALS, researchers developed a method to produce a porous electrolyte framework that they used to construct a working all-solid-state battery. Such batteries potentially offer a higher energy density, longer cycle life, and better inherent safety than state-of-the-art lithium-ion batteries. Read more »