Single-crystalline star-shaped nanocrystals and their evolution: Programming the geometry of nano-building blocks

Sang Min Lee, Young wook Jun, Sung Nam Cho, Jinwoo Cheon

Research output: Contribution to journalArticle

502 Citations (Scopus)


We demonstrate a novel synthetic scheme that can be used to differentially guide the shape of PbS semiconductor nanocrystals. Our study first demonstrates the discovery of single-crystalline star-shaped nanocrystals as novel transient species. We then carefully probe their shape evolution toward other novel nanostructures (e.g., tadpole-, L-, T-, cross-shapes, highly faceted star shapes, truncated octahedrons and cubes, etc.) and systematically elucidate the key parameters that control these final structures. In principle, through programming these growth parameters, the desired architecture of building blocks of other kinds of nano materials can be constructed.

Original languageEnglish
Pages (from-to)11244-11245
Number of pages2
JournalJournal of the American Chemical Society
Issue number38
Publication statusPublished - 2002 Sep 25


All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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