Assembly of highly ordered nanoparticle monolayers at a water/hexane interface

作者:Park Yong Kyun; Yoo Sang Hoon; Park Sungho*
来源:Langmuir, 2007, 23(21): 10505-10510.
DOI:10.1021/la701445a

摘要

This paper reports a methodology for preparing ordering hydrophilic metal nanoparticles into close-packed 2-dimensional arrays at a hekane-water interface with alkanethiol in the hexane layer. The destabilization of metal nanoparticles by the addition of alcohol caused the nanoparticles to adsorb to an interface where the surface of entrapped An nanoparticle was in situ coated with the long-chain alkanethiols present in a hexane layer. The adsorption of alkanethiol to the nanoparticle surface caused the conversion of the electrostatic repulsive force to a van der Waals interaction, which is a key feature in forming highly ordered close-packed nanoparticle arrays.

  • 出版日期2007-10-9