Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/97347
Title: Cadmium telluride nanocrystals : synthesis, growth mode and effect of reaction temperature on crystal structures
Authors: Boey, Freddy Yin Chiang
Zhang, Hua
Wang, Lianhui
Huang, Wei
Tang, Duo-Feng
Fan, Qu-Li
Qi, Xiaoying
Pu, Kan-Yi
Fang, Chun
Wen, Gui-An
Keywords: DRNTU::Engineering::Materials::Nanostructured materials
Issue Date: 2008
Source: Qi, X. Y., Pu, K. Y., Fang, C., Fan, Q. L., Tang, D. F., Wen, G. A., et al. (2008). Cadmium Telluride Nanocrystals: Synthesis, Growth Mode and Effect of Reaction Temperature on Crystal Structures. Nano, 3(2), 109-115.
Series/Report no.: Nano
Abstract: A series of cadmium telluride (CdTe) nanocrystals were synthesized by a modified organometallic synthesis method at various reaction temperatures ranging from 130 to 250°C. In this method, octadecylamine (ODA) was introduced as an additional coordinating component to the mixture of trioctylphosphine oxide (TOPO) and trioctylphosphine (TOP). CdO was used as a precursor. The prepared CdTe nanocrystals were studied by the absorption and emission spectra as well as the powder X-ray diffraction (XRD) patterns. The result shows that besides the traditional continuous-growth mode observed frequently at relatively high reaction temperature, a discontinuous-growth mode was confirmed at the initial growth stage of CdTe nanocrystals, arising from the change of the absorption spectra of CdTe nanocrystals with the reaction time at relatively low reaction temperature. The structures of CdTe nanocrystals, e.g., the cubic zinc blende structure at 160°C and the hexagonal wurtzite structure at 250°C, were characterized by XRD.
URI: https://hdl.handle.net/10356/97347
http://hdl.handle.net/10220/10520
ISSN: 1793-2920
DOI: 10.1142/S1793292008000873
Rights: © 2008 World Scientific Publishing Company.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

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