Angewandte Chemie International Edition
© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Cover Picture: Low-Cost Copper Zinc Tin Sulfide Counter Electrodes for High-Efficiency Dye-Sensitized Solar Cells (Angew. Chem. Int. Ed. 49/2011)
A novel environmentally friendly Pt-free counter-electrode (CE) for dye-sensitized solar cells (DSSCs) based on low-cost quaternary copper zinc tin sulfide (CZTS) nanocrystals is described by Z. Lin and co-workers in their Communication on page 11 739 ff. CZTS nanocrystals were synthesized and spin-coated onto fluorine-doped tin oxide glass. After selenization of the CZTS semiconductor, the power conversion efficiency of the resulting DSSC was comparable to that of the device with a Pt CE.
Also of Interest
F. C. Küpper, L. Kloo, and co-workers look back on 200 years of iodine research in their Review on page 11 598 ff. and highlight the significance of this element to nature as well as to chemical research and industry.
In their Communication on page 11 622 ff. Z. Dai and co-workers report on the development of a cerasomal photosensitizer of high stability that shows intrinsic fluorescence and significant damage to tumor cells.
In their Communication on page 11 685 ff., A. Steiner and co-workers determine the solid-state structures of the classic organometallic compounds dimethylzinc and diethylzinc by X-ray crystallography.