Application of Gold Powder Made from Gold Leaf for Conductive Inks

Sayaka YAMASHITA  Heisuke SAKAI  Hideyuki MURATA  

IEICE TRANSACTIONS on Electronics   Vol.E102-C   No.2   pp.176-179
Publication Date: 2019/02/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.2018OMS0009
Type of Manuscript: BRIEF PAPER
gold leaf,  gold powder,  gold particles,  conductive ink,  percolation network,  

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In this work, gold powder made from gold leaf investigated to have the potential as a filler of conductive ink. The resistance of a conductive film decreased from 6.2kΩ to 1 Ω by adding only 2.0wt% of gold powder to conductive polymer (PEDOT:PSS) ink. The change of the resistance depends on the characteristics of gold powder. Gold powder with smaller and uniform sizes and good dispersibility is beneficial to form a continuous percolation network.