Surfactant-assisted room-temperature synthesis of CdSe nanoclusters

Sathyamoorthy, R.; Manjuladevi, V.; Sudhagar, P.; Senthilarasu, S.; Pal, U.

Abstract

CdSe nanoclusters of about 22 nm average size have been synthesized by a surfactant-assisted chemical method at room temperature. The as-grown nanoclusters were near stoichiometric and 70% of them were of hexagonal wurtzite crystalline phase. With undefined shapes, the crystalline nanoclusters remained arbitrarily oriented in a compact powder form. The morphology and structural behavior of the nanoclusters were studied by scanning electron microscopy and transmission electron microscopy. Thermal stability of the nanoclusters was studied by thermogravimetric analysis. Presence of very small clusters (<5 nm) in the sample revealed a blue shifted excitonic absorption peak along with the excitonic peak of bigger clusters.

Citation

Sathyamoorthy, R., Manjuladevi, V., Sudhagar, P., Senthilarasu, S., & Pal, U. (2007). Surfactant-assisted room-temperature synthesis of CdSe nanoclusters. Materials Chemistry and Physics, 105(1), 20-24. https://doi.org/10.1016/j.matchemphys.2007.04.008

• Journal Article Type: Article
• Acceptance Date: Apr 8, 2007
• Online Publication Date: Apr 13, 2007
• Publication Date: Sep 15, 2007
• Deposit Date: Mar 14, 2023
• Journal: Materials chemistry and physics
• Print ISSN: 0254-0584
• Electronic ISSN: 1879-3312
• Publisher: Elsevier
• Peer Reviewed: Peer Reviewed
• Volume: 105
• Issue: 1
• Pages: 20-24
• DOI: https://doi.org/10.1016/j.matchemphys.2007.04.008
• Keywords: CdSe nanoclusters, Surfactant-assisted synthesis, Structure, Morphology