Spectroscopy of a single Sb2Se3 nanorod

Kien-Wen Sun, Cheng Hang Yang, Ting Yu Ko, Hao Wei Chang, Chen Wei Liu

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Abstract

In this paper, we present solvothermal methods to chemically synthesize Sb2Se3 nanorods using dialkyl diselenophosphate (dsep) complexes of antimony. Energy-dispersive X-ray analysis shows the products are phase pure. We have also studied the Raman and photoluminescence spectroscopy of a single Sb2Se3 nanorod with an average size of 60 nm in diameter and a length less than 1 |μm. Techniques have been devised to immobilize and allocate a single nano-object on an electron beam (E-beam) patterned smart substrate with metallic coordination markers. This also overcomes the limitation of spatial resolution of conventional optical techniques (∼1 |jm) to perform optical spectroscopy on an individual nano-object less than 100 nm in size. Raman spectroscopy reveals that Sb 2Se3 nanorods synthesized at a lower temperature contain a small amount of Sb2Se3. The broad linewidth observed in luminescence spectra from a single rod is attributed to the increasing number of surface defects, impurities, and dangle bonds attached on the surface as the nanoparticle size reduced to nanometer scale.

Original languageEnglish
Pages (from-to)1511-1522
Number of pages12
JournalPure and Applied Chemistry
Volume81
Issue number8
DOIs
StatePublished - 14 Sep 2009

Keywords

  • Electron beam lithography
  • Nanorods
  • Photoluminescence
  • Raman
  • Solvothermal

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    Sun, K-W., Yang, C. H., Ko, T. Y., Chang, H. W., & Liu, C. W. (2009). Spectroscopy of a single Sb2Se3 nanorod. Pure and Applied Chemistry, 81(8), 1511-1522. https://doi.org/10.1351/PAC-CON-08-08-34