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One-pot aqueous synthesis of cysteine-capped CdTe/CdS core-shell nanowires
Australian Institute for Innovative Materials - Papers
  • Yukai Shan, Yunnan University
  • Zhen Xiao, Yunnan University
  • Yongming Chuan, Yunnan University
  • Hongli Li, Yunnan University
  • Minglong Yuan, Yunnan University
  • Zhen Li, University of Wollongong
  • S X Dou, University of Wollongong
RIS ID
90376
Publication Date
1-1-2014
Publication Details

Shan, Y., Xiao, Z., Chuan, Y., Li, H., Yuan, M., Li, Z. & Dou, S. (2014). One-pot aqueous synthesis of cysteine-capped CdTe/CdS core-shell nanowires. Journal of Nanoparticle Research, 16 (2420), 1-11.

Abstract
Highly fluorescent cysteine-capped CdTe/CdS core-shell nanowires were successfully synthesized by reacting CdCl2 with NaHTe in aqueous solution under refluxing at 100 °C for 140 min. On increasing the reaction time from 10 to 140 min, CdTe/CdS nanocrystals gradually grew into nanorods and eventually completely evolved into nanowires. The nanowires have amino and carboxyl functional groups on their surfaces and can be well dispersed in aqueous solution. The as-prepared CdTe/CdS nanowires show a fluorescence quantum yield (QY) of 7.25 % due to the unique nature of cysteine and the formation of a CdS shell on the surface of the CdTe core, they have a narrower diameter distribution (d = ~5 nm) and a length in the range of 175-275 nm, and their aspect ratio is between 1/35 and 1/55.
Citation Information
Yukai Shan, Zhen Xiao, Yongming Chuan, Hongli Li, et al.. "One-pot aqueous synthesis of cysteine-capped CdTe/CdS core-shell nanowires" (2014) p. 1 - 11
Available at: http://works.bepress.com/sxdou/580/