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The structure and electrical properties of the thin gold leaves fabricated by Vietnam traditional laminating technology are introduced. The gold leaves are usually created with the average size of 3x3cm, and 200nm thickness, they can easily be broken when handling carelessly. By the measurements of X-ray Diffraction (XRD), and Electron Scanning Microscopy (SEM), the structure and surface morphology were investigated. | Communications in Physics, Vol. 24, No. 3S1 (2014), pp. 29-32 DOI:10.15625/0868-3166/24/3S1/5072 STRUCTURE AND ELECTRICAL PROPERTIES OF THE THIN GOLD LEAVES FABRICATED BY VIETNAM TRADITIONAL LAMINATING TECHNOLOGY NGUYEN KHAC THUAN AND HOANG NAM NHAT University of Engineering and Technology, Vietnam National University, Hanoi E-mail: namnhat@gmail.com Received 04 June 2014 Accepted for publication 24 August 2014 Abstract. The structure and electrical properties of the thin gold leaves fabricated by Vietnam traditional laminating technology are introduced. The gold leaves are usually created with the average size of 3x3cm, and 200nm thickness, they can easily be broken when handling carelessly. By the measurements of X-ray Diffraction (XRD), and Electron Scanning Microscopy (SEM), the structure and surface morphology were investigated. We have also measured the absorption spectra and determined the resistivity of the samples and found that the gold films possessed the Ca impurities stuck on the surface of the leaves. The conductivity of the films is relatively higher and the absorption maximum is red-shifted in comparison with that of the bulk. Keywords: ??????????????. I. INTRODUCTION The jewellery that utilizes gold and silver as the main raw materials appeared for a quite long time in Vietnam. The products made up of gold and silver are often very expensive, but those products inlaid with gold leaves are often of much cheaper prices while preserving the basic characteristics of gold which include its color, conductivity and inertness. In the North of Vietnam, the gold laminating technology preserves only in the Kieu Ki village, in the suburb area of Hanoi. The manufacturing technology includes a number of production stages, conducted under a strict order: ink-made, mixed Dzo paper, surf ink on the paper and smash gold into the paper, the finishment etc. . . Bulk gold is a metal trasmitting a color of yellow, but as known, its shows the different colors in the .
