Platinum has been inserted into corroles for the first time and three oxidized PtIV(corrole˙2−)ArAr′ complexes have been structurally characterized. The Soret maxima of these complexes exhibit an unusually strong dependence on the meso-aryl substituents on the corrole, indicating aryl → corrole˙2− charge transfer character in these transitions. Read more »
All News & Updates
Karen Nunez, Procedures Center Manager
Procedures Center Manager Karen Nunez has been working somewhat “behind the scenes” at the ALS for the past seven years, ensuring that documentation for the many procedures involved in ALS operations is clear, correct, and up to date. She works with a plethora of ALS engineers, operators, technicians, and scientists, who all lend their technical expertise to her work. Read more »
Youngest ALS Users Go to the White House
Two seventh graders from Black Pine Circle (BPC) School in Berkeley, who came to the ALS last November on a field trip that included actual beam time earned through peer-reviewed proposals, have now made it all the way to the White House. Read more »
New ALS Technique Gives Nanoscale Views of Complex Systems
A new broadband imaging technique looks inside the mesoscale realm with unprecedented sensitivity and range. Synchrotron Infrared Nano-Spectroscopy (SINS) will enable in-depth study of complex molecular systems, including liquid batteries, living cells, novel electronic materials, and stardust.
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Recollections of Tom Alber
Tom Alber passed away in late March 2014 after a long and courageous fight with illness. Two people that worked closely with Tom at the ALS recall their memories of a dear friend and colleague. Read more »
Our Youngest Users Win Big at Maker Faire
Over the last couple of months we have been telling the story of Black Pine Circle teacher Chris Mytko (left) and her intrepid group of grade-seven students who came to the ALS to conduct experiments and then recreated their results using 3D printing. Their story continues this month with the happy news that while showingRead More Read more »
Tim Kuneli, Electronics Maintenance Group
The recent ALS power supply failure was one of the most challenging projects that Electronics Engineer Technical Superintendent Tim Kuneli has worked on in his 12 years at the ALS. And judging by how quickly ALS engineering and accelerator physics staff resolved the issue and the ingenuity involved in the fix, it may also be one of the most successful projects he’s been involved in. Read more »
The influence of molecular orientation on organic bulk heterojunction solar cells
Work done on ALS Beamlines 11.0.1.2, 7.3.3, and 5.3.2.2. reveals that preferential orientation of polymer chains with respect to the fullerene domain leads to a high photovoltaic performance. Read more »
ALS Technique Gives Novel View of Lithium Battery Dendrite Growth
Lithium-ion batteries, popular in today’s electronic devices, could gain significant energy density if their graphite anodes were replaced with lithium metal anodes. But there’s a major concern with substituting lithium—when the battery cycles, microscopic fibers of the lithium anodes (“dendrites”) form on the surface of the lithium electrode and spread across the electrolyte until they reach the other electrode, possibly leading to short circuiting. Researchers have recently discovered that the x-ray microtomography capabilities at ALS Beamline 8.3.2 can give them a novel view of dendrite growth that’s likely to provide the insight needed to stop it. Read more »
Ken Goldberg, Deputy Director of the Center for X-Ray Optics
Kenneth Goldberg, deputy director of the Center for X-Ray Optics (CXRO), has been a part of the ALS since 1993, when he began setting up one of the first experiments on the floor, a project in coherent EUV optics. After completing his PhD in physics at Cal in 1997, Goldberg joined CXRO as a staff scientist. Read more »
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