Paper Title:

Characteristic Microstructure Evolution of Polycrystalline Ag Films Prepared from Ink-Jetted Ag Nanoparticle Suspension

Periodical Materials Science Forum (Volumes 558 - 559)
Main Theme Recrystallization and Grain Growth III
Edited by S.-J.L. Kang, M.Y. Huh, N.M. Hwang, H. Homma, K. Ushioda and Y. Ikuhara
Pages 1243-1248
DOI 10.4028/www.scientific.net/MSF.558-559.1243
Citation Jung Kyu Jung et al., 2007, Materials Science Forum, 558-559, 1243
Online since October, 2007
Authors Jung Kyu Jung, Soo Hong Choi, Myoung Joon Jang, Jae Woo Joung, Young Chang Joo
Keywords Abnormal Grain Growth, Inkjet Printing, Microstructure, Porosity
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Abstract

Use of silver (Ag) nanoparticle suspension for various applications such as ink-jet printing of electronic circuits has been of prime interest. We observed the microstructure evolution of the inkjet-printed Ag thin films on Si substrates under various annealing conditions using the field-emission scanning electron microscopy (FE-SEM). Abnormal grain growth characteristics were identified when annealed at about 240 oC under ambient air. Growth characteristics of pores were found to be in accordance with that of grains. Competition between grain and pore growth is attributed to small grain sizes, low packing density and high porosity, which are characteristic of inkjet-printed Ag films as dried.