Superlattice Array of Alkanethiolate and Alkanecarboxylate Protected Gold and Silver Nanoparticles
¡@Complex nano-architectures of different materials have very interesting geometry. Combining different metallic nanoparticles should allow the manufacture of novel nanocomposite materials with a plethora of exploitable electronic, optical, and magnetic properties.
¡@Thiolate-capped Au nanoparticles prepared by Brust-Schiffrin two phase method and carboxylate-capped Ag nanoparticles prepared by our one-step synthetic method are reported.
¡@We also developed and prepared Ag colloidal solution which can be used to form a high valuable conductive thin film by spin coating on Si wafer. Specific resistivity of 6.097 £g£[¡Ecm for the silver metallic film (0.7 £gm) on the Si wafer can be simply produced by thermal annealing of Ag MPCs film under an atmosphere of 10 % H2-90 % N2 at 300 ¢J for 1 h. Furthermore, it can be applied to make a micro-circuit by ink-jet printing technique.
¡@The characterizations of TEM, PXRD, UV-Visible, NMR, FT-IR, ESCA, TGA, TA-MS, EI-MS and SEM of Au and Ag nanoparticles are described.
¡@We hope the thiolate-capped Au nanoparticles and carboxylate-capped Ag nanoparticles could spontaneously self-connect to form the nanoscale alloy superlattice structure by the molecular recognizable bifuctional linkage.
Advisor:Chin-Hsing Chou; Teng-Yuan Dong; Nein-Chen Chang; Lan-Chang Liang
School:National Sun Yat-Sen University
School Location:China - Taiwan
Source Type:Master's Thesis
Keywords:gold nanoparticle superlattice thin film silver
Date of Publication:06/23/2008