Surface Chemistry of Luminescent Colloidal Silicon Nanoparticles

Czech Technical University, Faculty of Nuclear Sciences and Physical ... Jangsun Hwang , Yoon Jeong , Kwan Hong Lee , Youngmin Seo , Jieun Kim , Jong ...
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1994

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