Synthesis of Fullerene-like Cs2O Nanoparticles by Concentrated Sunlight (pages 2993–2996)
A. Albu-Yaron, T. Arad, M. Levy, R. Popovitz-Biro, R. Tenne, J. M. Gordon, D. Feuermann, E. A. Katz, M. Jansen and C. Mühle
Article first published online: 14 NOV 2006 | DOI: 10.1002/adma.200600983
Application of a solar-driven synthesis approach for the production of fullerene-like Cs2O nanoparticles is presented (see figure). The synthesis is performed directly in evacuated quartz ampoules containing a Cs2O crystallite precursor under continuous irradiation with highly concentrated sunlight. Closed-cage nested Cs2O structures are obtained in a variety of shapes and dimensions. These structures are rather stable, a significant advantage for photoemissive applications involving Cs2O coatings.