Evaporation-induced self-assembly of nanoparticles from a sphere-on-flat geometry

Jun Xu, Jianfeng Xia, Zhiqun Lin

Research output: Contribution to journalArticlepeer-review

208 Scopus citations


(Figure Presented) Nanoscience in coffee rings: Nanoparticles with easily tailored optical and electronic properties can be dynamically self-assembled into spatially ordered, 2D patterns (see SEM picture) simply by allowing a drop of a nanoparticle solution to evaporate in a confined, axially symmetric geometry. Utilizing the "coffee-ring" phenomenon, this approach, which dispenses with the need for lithography and external fields, is fast, cheap, and robust.

Original languageEnglish
Pages (from-to)1860-1863
Number of pages4
JournalAngewandte Chemie - International Edition
Issue number11
StatePublished - 2007


  • Molecular devices
  • Nanotechnology
  • Quantum dots
  • Self-assembly


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