Communication

A Microfabricated Gas–Liquid Segmented Flow Reactor for High-Temperature Synthesis: The Case of CdSe Quantum Dots†

  1. Brian K. H. Yen2,
  2. Axel Günther1,
  3. Martin A. Schmidt Prof.3,
  4. Klavs F. Jensen Prof.1,
  5. Moungi G. Bawendi Prof.2

Article first published online: 20 JUN 2005

DOI: 10.1002/anie.200500792

Issue

Angewandte Chemie International Edition

Angewandte Chemie International Edition

Volume 44, Issue 34, pages 5447–5451, August 26, 2005

Additional Information

How to Cite

Yen, B. K. H., Günther, A., Schmidt, M. A., Jensen, K. F. and Bawendi, M. G. (2005), A Microfabricated Gas–Liquid Segmented Flow Reactor for High-Temperature Synthesis: The Case of CdSe Quantum Dots. Angewandte Chemie International Edition, 44: 5447–5451. doi: 10.1002/anie.200500792

Author Information

  1. 1

    Massachusetts Institute of Technology, Department of Chemical Engineering, Institute for Soldier Nanotechnologies, 77 Massachusetts Avenue, 66–566, Cambridge, MA 02139, USA, Fax: (+1) 617-258-8224

  2. 2

    Massachusetts Institute of Technology, Department of Chemistry, Institute for Soldier Nanotechnologies, 77 Massachusetts Avenue, 6–221, Cambridge, MA 02139, USA, Fax: (+1) 617-253-7030

  3. 3

    Massachusetts Institute of Technology, Microsystems Technology Laboratories, Department of Electrical Engineering and Computer Science, Cambridge, MA 02139, USA

  1. †

    This research was funded in part by the NSF-CRC program (CHE-0209898), the Microchemical Systems Technology Center, and the U.S. Army through the Institute for Soldier Nanotechnologies (under contract DAAD-19-02-0002 with the U.S. Army Research Office). B.K.H.Y. acknowledges support from the NDSEG Fellowship Program. We thank the staff of the MIT Microsystems Technology Laboratories for assistance with microfabrication.

Publication History

  1. Issue published online: 22 AUG 2005
  2. Article first published online: 20 JUN 2005
  3. Manuscript Received: 3 MAR 2005

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Keywords:

  • microreactors;
  • nanostructures;
  • nanotechnology;
  • quantum dots;
  • segmented flow

Graphical Abstract

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Monodisperse CdSe quantum dots (QDs) with excellent optical properties can be prepared with a gas–liquid segmented flow microreactor with multiple temperature zones (see picture; red=heated; blue=cooled quench zone). The enhanced mixing and narrow residence time distributions of segmented flow produce QDs superior to those prepared in single-phase operations.

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