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http://dx.doi.org/10.5012/bkcs.2014.35.2.397

Synthesis of CdS Nanocrystals with Different Shapes via a Colloidal Method  

Bai, Jie (Key Laboratory for Special Functional Materials of Ministry of Education, Henan University)
Liu, Changsong (Key Laboratory for Special Functional Materials of Ministry of Education, Henan University)
Niu, Jinzhong (Key Laboratory for Special Functional Materials of Ministry of Education, Henan University)
Wang, Hongzhe (Key Laboratory for Special Functional Materials of Ministry of Education, Henan University)
Xu, Shasha (Key Laboratory for Special Functional Materials of Ministry of Education, Henan University)
Shen, Huaibin (Key Laboratory for Special Functional Materials of Ministry of Education, Henan University)
Li, Lin Song (Key Laboratory for Special Functional Materials of Ministry of Education, Henan University)
Publication Information
Bulletin of the Korean Chemical Society / v.35, no.2, 2014 , pp. 397-400 More about this Journal
Abstract
Size- and shape-controlled monodisperse wurtzite structured CdS nanorods have been successfully synthesized using a facile solution-based colloidal method. Depending on the control of injection/growth temperatures and the variation of Cd-to-S molar ratios, the morphology of the CdS nanocrystals (NCs) can be adjusted into bullet-like, rod-like, and dot-like shapes. X-ray diffraction (XRD), transition electron microscopy (TEM), and absorption spectroscopy were used to characterize the structure, morphology, and optical properties of as-synthesized CdS NCs. It was found that uniform CdS nanorods could be successfully synthesized when the injection and growth temperatures were very high (> $360^{\circ}C$). The aspect ratios of different shaped (bullet-like or rod-like) CdS NCs could be controlled by simply adjusting the molar ratios between Cd and S.
Keywords
CdS nanorods; Colloidal processing; Semiconductors; Wurtzite;
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