Fabrications of dispersive gold one-dimensional nanocrystals using vacuum evaporation

• Published in: Thin solid films Vol. 471; no. 1; pp. 91 - 95
• Main Authors: Okumura, Yasuaki, Miyazaki, Takuya, Taniguchi, Yoshio, Sasaki, Yuji C.
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 03-01-2005; Elsevier Science
• Subjects: Chemical synthesis methods; Cross-disciplinary physics: materials science; rheology; Epitaxy; Exact sciences and technology; Gold; Materials science; Methods of nanofabrication; Nanocrystalline materials; Nanoscale materials and structures: fabrication and characterization; Nanostructure; Physics; X-ray diffraction; 61.10.-i; X-ray diffraction; Gold; 02.70.Ns; Nanostructure; Epitaxy; Inorganic compounds; 74.72Bk Epitaxy; X-ray diffraction 02.70.Ns':'61.10.-i; Crystal growth from vapors; XRD; Experimental study; Preferred orientation; Transition elements; 74.60Jg; Vacuum evaporation; Nanostructured materials; 74.60Ge; Nanocrystal; 74.40+k
• ISSN: 0040-6090; 1879-2731
• DOI: 10.1016/j.tsf.2004.04.033

We report the fabrication of dispersive one-dimensional gold nanocrystals which is an essential technology for the X-ray single-molecule technique. Gold nanocrystals approximately 16 nm in diameter, fabricated by vacuum evaporation (deposited gold thickness: 2.0 nm; substrate temperature: 375 °C) on cleaved NaCl (100) substrates, were stably dispersed in aqueous solutions by dissolving the substrate. We confirmed from their X-ray diffraction patterns that the fabricated gold nanocrystals have a single orientation (200). We succeeded in monitoring diffracted X-ray spots (Laue spots) from individual gold nanocrystals with a diameter of approximately 16 nm at an exposure time of <10 ms.