Optical Properties of Silicon Nanoparticles by Ultrasound-Induced Solution Method

White-light-emitting silicon nanoparticles, whose surfaces were passivated with butyl, were prepared using a focused ultrasonic energy. The white light was achieved by controlling only the size distribution without adding any fluorescent ions. The white-light-emitting silicon nanoparticles had a wid...

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Veröffentlicht in:Japanese Journal of Applied Physics 2004-06, Vol.43 (6B), p.L784
Hauptverfasser: Lee, Soojin, Cho, Woon Jo, Chin, Chong Shik, Han, Il Ki, Choi, Won Jun, Park, Yong Ju, Song, Jin Dong, Lee, Jung Il
Format: Artikel
Sprache:eng
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Zusammenfassung:White-light-emitting silicon nanoparticles, whose surfaces were passivated with butyl, were prepared using a focused ultrasonic energy. The white light was achieved by controlling only the size distribution without adding any fluorescent ions. The white-light-emitting silicon nanoparticles had a wide size distribution of 1–5 nm and an average size of 2.7 nm, which were sufficiently small to indicate the quantum confinement effect for silicon. The photoluminescence spectrum covered a wide range of 320 nm–700 nm with a full width at half maximum of approximately 190 nm.
ISSN:0021-4922
1347-4065
DOI:10.1143/JJAP.43.L784