Journal
POLYHEDRON
Volume 30, Issue 12, Pages 2162-2170Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.poly.2011.06.002
Keywords
Nickel tetraamino phthalocyanine; CdTe quantum dots; Cyclic voltammetry; Electrochemical impedance spectroscopy; Atomic force microscopy
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Funding
- Department of Science and Technology (DST)
- National Research Foundation (NRF) of South Africa through DST/NRF South African Research Chairs Initiative
- Rhodes University
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This work reports on the synthesis of conjugates of cadmium telluride quantum dots (CdTe-QDs) caped with thioglycolic acid and peripherally substituted nickel tetraamino phthalocyanine (NiTAPc) complex. The conjugates are characterized using cyclic (CV) and differential pulse (DPV) voltammetries, electro-chemical impedance spectroscopy, X-ray powder diffraction, infrared spectroscopy, Raman spectroscopy, atomic force microscopy and time correlated single photon counting. CV and DPV show that NiTAPc stabilizes the CdTe QDs against oxidation to metallic products. (C) 2011 Elsevier Ltd. All rights reserved.
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