Title: Spectroscopy of a single Sb(2)Se(3) nanorod
Authors: Sun, Kien Wen
Yang, Cheng-Hang
Ko, Ting-Yu
Chang, Hao-Wei
Liu, Chen-Wei
Department of Applied Chemistry
Institute of Molecular science
Issue Date: 1-Aug-2009
Abstract: In this paper, we present solvothermal methods to chemically synthesize Sb(2)Se(3) 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 Sb(2)Se(3) nanorod with an average size of 60 nm in diameter and a length less than 1 mu m. 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 (similar to 1 mu m) to perform optical spectroscopy on an individual nano-object less than 100 nm in size. Raman spectroscopy reveals that Sb(2)Se(3) nanorods synthesized at a lower temperature contain a small amount of Sb(2)Se(3). 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.
URI: http://dx.doi.org/10.1351/PAC-CON-08-08-34
ISSN: 0033-4545
DOI: 10.1351/PAC-CON-08-08-34
Volume: 81
Issue: 8
Begin Page: 1511
End Page: 1522
Appears in Collections:Articles