Communication

Surfactant-Directed Synthesis of Branched Bismuth Telluride/Sulfide Core/Shell Nanorods†

  1. Arup Purkayastha1,
  2. Qingyu Yan1,
  3. Makala S. Raghuveer1,
  4. Darshan D. Gandhi1,
  5. Huafang Li1,
  6. Zhong W. Liu3,
  7. Raju V. Ramanujan3,
  8. Theodorian Borca-Tasciuc2,
  9. Ganapathiraman Ramanath1,*

Article first published online: 2 JUN 2008

DOI: 10.1002/adma.200702572

Issue

Advanced Materials

Advanced Materials

Volume 20, Issue 14, pages 2679–2683, July 17, 2008

Additional Information

How to Cite

Purkayastha, A., Yan, Q., Raghuveer, M. S., Gandhi, D. D., Li, H., Liu, Z. W., Ramanujan, R. V., Borca-Tasciuc, T. and Ramanath, G. (2008), Surfactant-Directed Synthesis of Branched Bismuth Telluride/Sulfide Core/Shell Nanorods. Advanced Materials, 20: 2679–2683. doi: 10.1002/adma.200702572

Author Information

  1. 1

    Department of Materials Science and Engineering Rensselaer Polytechnic Institute Troy, NY 12180 (USA)

  2. 2

    Department of Mechanical, Aerospace and Nuclear Engineering Rensselaer Polytechnic Institute Troy, NY 12180 (USA)

  3. 3

    School of Materials Science and Engineering Nanyang Technological University Singapore (Singapore)

*Department of Materials Science and Engineering Rensselaer Polytechnic Institute Troy, NY 12180 (USA).

  1. †

    We gratefully acknowledge support from the Interconnect Focus Center funded by MARCO, DARPA, and NY state, the National Foundation under grants ECS 0501488 and DMR 0519081, and CTS 0348613, and a research initiation grant from Honda. Supporting Information is available online from Wiley InterScience or from the authors.

Publication History

  1. Issue published online: 23 JUL 2008
  2. Article first published online: 2 JUN 2008
  3. Manuscript Revised: 29 JAN 2008
  4. Manuscript Received: 12 OCT 2007

Funded by

  • MARCO
  • DARPA
  • NY state
  • National Foundation. Grant Numbers: ECS 0501488, DMR 0519081, CTS 0348613

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Keywords:

  • core/shell materials;
  • inorganic nanostructures;
  • surfactants;
  • tellurides

Graphical Abstract

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Branched core/shell bismuth telluride/bismuth sulfide nanorod heterostructures are prepared by using a biomimetic surfactant, L-glutathionic acid. Trigonal nanocrystals of bismuth telluride are encapsulated by nanoscopic shells of orthorhombic bismuth sulfide. Crystallographic twinning causes shell branching. Such heteronanostructures are attractive for thermoelectric power generation and cooling applications.

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