New synthetic route of alkyl-terminated silicon nanoparticles and their optical characteristics.
New synthetic route and characterization of alkyl-capped nanocrystalline silicon (R-n-Si) were achieved from the reaction of silicon tetrachloride with sodium/benzophenone ketal, followed by n-butyllithium. Optical characteristics of silicon nanoparticles were characterized by Fourier transform infrared spectroscopy (FT-IR), ultraviolet-visible spectroscopy (UV-vis), and photoluminescence (PL) spectroscopy. Butyl-capped silicon nanoparticles exhibited an emission band at 410 nm with excitation wavelength of 360 nm. Average size of n-butyl-capped silicon nanoparticles was obtained by particle size analyzer (PSA) and transmission electron microscopy (TEM). Average size of n-butyl-capped Si nanoparticles was about 6.5 nm.
Jang
Seunghyun
S
Department of Chemistry, Chosun University, 375 Seo-Suk Dong, Dong-gu, Gwangju 501-759, Korea.
Kim
Jihoon
J
Koh
Youngdae
Y
Jung
Kyoungsun
K
Woo
Hee-Gweon
HG
Sohn
Honglae
H