Paper Title:
Sonochemical Synthesis of Silicon Nanocrystals
  Abstract

Silicon nanocrystals in a range from 2 nm to 5 nm were prepared from Zintl salt, soldium silicide (NaSi) by sonochemical method. This synthesis permits that the reaction be completed in only a few hours and the easy alkyl-modification of nanocrystals surface at room temperature and ambient pressure. The average size of nanocrystals measured by the dynamic light scattering analysis was 2.7 nm. The high-resolution transmission electron micrograph confirmed the material identity of nanocrystals as crystalline silicon. FT-IR spectra are consistent with the surface states of nanocrystals that are chlorine-or butyl-capped. The emission peak center moved to a longer wavelength (up to 430 nm) with the reaction time, under a 325 nm excitation.

  Info
Periodical
Key Engineering Materials (Volumes 277-279)
Edited by
Kwang Hwa Chung, Yong Hyeon Shin, Sue-Nie Park, Hyun Sook Cho, Soon-Ae Yoo, Byung Joo Min, Hyo-Suk Lim and Kyung Hwa Yoo
Pages
995-999
DOI
10.4028/www.scientific.net/KEM.277-279.995
Citation
S. J. Lee, W. J. Cho, C. S. Chin, I. K. Han, "Sonochemical Synthesis of Silicon Nanocrystals", Key Engineering Materials, Vols. 277-279, pp. 995-999, 2005
Online since
January 2005
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: W.Q. Peng, S.C. Qu, G.W. Cong, Z.G. Wang
Abstract:Using a solution-based chemical method, we have prepared ZnS nanocrystals doped with high concentration of Mn2+. The X-ray diffraction...
1795
Authors: P.T. Huy, P.H. Duong
Abstract:Photoluminescence (PL) from silicon nanocrystals deposited on top of silica-glass template and from silicon nanocrystals in nc_Si/SiO2...
74
Authors: C.D. Gutiérrez-Lazos, M. Ortega-López, E. Rosendo-Andrés, Y. Matsumoto-Kuwabara, V. Sánchez-Reséndiz, J. Morales-Corona, R. Olayo-González, E. Barrera-Calva, T. Díaz-Becerril
Abstract:CdTe nanocrystals have been synthesized in aqueous solution at 92oC under open-air conditions. During the reaction, aliquots of the samples...
374
Authors: Zhen Li, Li Wei Peng, Fei Gao, Deng Yu Pan, Ming Hong Wu
Micro/Nano Materials
Abstract:In this paper, a rapid, facile and green strategy — electron beam irradiation has been developed to prepare CdSe nanoparticles. 10 mA GJ-2-II...
697
Authors: Xu Yao Xu, Lin Ma, Xiao Ping Zhou
Chapter 10: Material Preparation, Properties and Failure
Abstract:LaF3 and LaF3: Re (Re= Ce3+, Eu3+ and Tb3+) nanocrystals have been successfully...
1547