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Trioctylphosphine as Both Solvent and Stabilizer to Synthesize CdS Nanorods

Shutang Chen1, Xiaoling Zhang1*, Qiuhua Zhang1 and Weihong Tan2

Author Affiliations

1 Department of Chemistry, School of Science, Beijing Institute of Technology, 100081, Beijing, People’s Republic of China

2 Center for Research at the Bio/Nano Interface, University of Florida, Gainesville, FL, 32611-7200, USA

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Nanoscale Research Letters 2009, 4:1159-1165  doi:10.1007/s11671-009-9375-x

Published: 17 June 2009


High quality CdS nanorods are synthesized reproducibly with cadmium acetate and sulfur as precursors in trioctylphosphine solution. The morphology, crystalline form and phase composition of CdS nanorods are characterized by transmission electron microscopy (TEM), high-resolution TEM and X-ray diffraction (XRD). CdS nanorods obtained are uniform with an aspect ratio of about 5:1 and in a wurtzite structure. The influence of reaction conditions on the growth of CdS nanorods demonstrates that low precursor concentration and high reaction temperature (260 °C) are favorable for the formation of uniform CdS nanorods with 85.3% of product yield.

CdS nanorods; Trioctylphosphine; Size control; Photoluminescence