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J. Phys. Chem. B 2006, 110, 1994-1998
Surface Chemistry of Luminescent Colloidal Silicon Nanoparticles Anton Fojtik* Czech Technical UniVersity, Faculty of Nuclear Sciences and Physical Engineering, Department of Physical Electronics, V HolesoVicka´ ch 2, 18000 Prague 8, Czech Republic
Arnim Henglein† Hahn-Meitner Institute, 14109 Berlin, Germany ReceiVed: May 31, 2005
Luminescent colloidal silicon particles are obtained by burning silane and slowly etching the product with hydrogen fluoride. Depending on their size, the particles emit red-orange or blue-green light with decay times between 28 µs and