Nanotemplated lead telluride thin films

Xiaohong Li, Iris S. Nandhakumar, George S. Attard, Matthew L. Markham, David C. Smith, Jeremy J. Baumberg

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Direct lyotropic liquid crystalline templating has been successfully applied to produce nanostructured IV-VI semiconductor PbTe thin films by electrodeposition both on gold and n-type (1 0 0) silicon substrates. The PbTe films were characterized by transmission electron microscopy, X-ray diffraction and polarized optical microscopy and the results show that the films have a regular hexagonal nanoarchitecture with a high crystalline rock salt structure and exhibit strong birefringence. The optical absorption measurements using Fourier transform infrared spectroscopy show that the nanostructured PbTe films have a direct band gap of 0.37 eV.

Original languageEnglish
Pages (from-to)403-407
Number of pages5
JournalMicroporous and Mesoporous Materials
Volume118
Issue number1-3
DOIs
StatePublished - Feb 1 2009
Externally publishedYes

Keywords

  • Electrodeposition
  • IV-VI semiconductors
  • Nanostructured materials
  • Templates
  • Thin films

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