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Nanotemplated lead telluride thin films

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


Direct lyotropic liquid crystalline templating has been successfully applied to produce nanostructured<br/>IV–VI semiconductor PbTe thin films by electrodeposition both on gold and n-type (100) silicon substrates.<br/>The PbTe films were characterized by transmission electron microscopy, X-ray diffraction and<br/>polarized optical microscopy and the results show that the films have a regular hexagonal nanoarchitecture<br/>with a high crystalline rock salt structure and exhibit strong birefringence. The optical absorption<br/>measurements using Fourier transform infrared spectroscopy show that the nanostructured PbTe films<br/>have a direct band gap of 0.37 eV.<br/

Topics: QD, QC
Year: 2009
OAI identifier:
Provided by: e-Prints Soton

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