Articles
  • A study of the behavior of MUA-coated Au colloid in ethanol solution 
  • Haiyan Songa, Young-Min Lima, Hyun-Woo Kwona, Min-Sang Leeb and Yeon-Tae Yua,*
  • a Division of Advanced Materials Engineering and Research Center for Advanced Materials Development, College of Engineering, Chonbuk National University, Chonju 561-756, Korea b LED Lab, Central R&D Institute, Samsung Electron-Mechanics Co., Ltd. Suwon 443-743, Korea
Abstract
A stable gold colloid dispersed in ethanol solution was prepared by coating with MUA. The stability of MUA-gold particles in the ethanol solution was studied using UV-Vis absorption spectra, which were affected by the MUA concentration, water concentration, initial particle size of the gold and heat treatment. A stable MUA-gold colloid in ethanol was obtained when the concentrations of MUA and water were 0.02 mM and 16.7 M, respectively. The small sizes of the gold particles before encapsulation and a low temperature were preferable for the stability of MUA-gold particles in the ethanol solution.

Keywords: MUA; gold colloid; concentration; stability; ethanol

This Article

  • 2007; 8(5): 341-346

    Published on Oct 30, 2007