In work that may help solar panels become a more viable source of mainstream power, a research group has created a dye-based solar cell with a high efficiency and high stability, and that lacks the volatile chemicals used in similar cells. This is a combination so far lacking in the newest solar-cell prototypes.The group, including researchers from the Changchun Institute of Applied Chemistry at the Chinese Academy of Sciences (CAS) and the Swiss Federal Institute of Technology, was studying a new type of solar cell that is being widely researched across the globe, one made of bendy, low-cost, lightweight organic materials rather than rigid, pricey, and often heavy inorganic materials.