Inside Cover, Volume 113, Issue 7


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Density functional theory is applied to the study of the electronic structure properties of AR20, an efficient Rutheniumdye in dyesensitized solar cells, as presented by Jie Chen, Jian Wang, Fu-Quan Bai, Qing-Jiang Pan, and Hong-Xing Zhang on page 891. Ancillary ligands are found to influence molecular orbital energy levels, and in the case of introduction of thiophene groups, enhance the absorption efficiency of the dye-sensitized solar cells in the visible range.