The beauty and wild colors of bird feathers are derived from the combinations of relatively few molecules. Research at the ALS shows that the expression of colors (or melanin), depends on the proportion of the molecules.
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Science Briefs
Minding the Gap Makes for More Efficient Solar Cells
Using novel materials to develop thin, flexible, and more efficient photovoltaic cells is one of the hottest topics in current materials research. A class of transition metals undergoes a dramatic change that makes them ideal for solar energy applications. Read more »
New Light on a Famous Insulator: Photoinduced Polaronic Conduction in Anatase
Using angle-resolved photoemission spectroscopy (ARPES), researchers have shown that the number of conduction electrons in anatase, as well as their degree of correlation, can be patterned by exposure to UV light in a controllable and reversible way. Read more »
Chloride Depletion in Aged Sea Salt Particles
Elemental and chemical imaging analyses showed that sea salt particles react with water-soluble organic acids in the atmosphere through a unique mechanism which had been overlooked in atmospheric chemistry. The reactions release volatile hydrogen chloride into the atmosphere and leave behind sea salt particles drained of chloride.
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