One-pot protocol for the synthesis of PbS-Au heterodimers consisting of Au nanoparticle on PbS nanooctahedrons

作者：Fang, Zhen^*; Wang, Xiaoqing; Wang, Qin; Wang, Chenyan; Fan, Fan; Liu, Xiaowang

来源：Micro & Nano Letters, 2012, 7(2): 101-104.

DOI：10.1049/mnl.2011.0602

• CORE-SHELL NANOCRYSTALS
• CHARGE-DISTRIBUTION
• OPTICAL-PROPERTIES
• CONTROLLED GROWTH
• CDS NANOPARTICLE
• FACILE SYNTHESIS
• GOLD
• HETEROSTRUCTURE
• NANOSTRUCTURES
• LUMINESCENCE

PbS-Au heterodimer with Au nanoparticles grown on the tips of PbS nanooctahedrons has been successfully fabricated in ethylene glycol by a facile one-pot method. The morphology of the heterodimers could be changed by the displacement of the capping agent. The products were characterised by powder X-ray diffraction, scanning electron microscopy, transmission electron microscopy, energy-dispersive spectrometer analysis and UV-vis absorption spectra. Compared with traditional synthesis methods of the heterodimers, the one-pot process is facile for large-scale synthesis. Owing to the charge transition between the heterointerface, a broad absorption peak around 372 nm is observed in UV-vis absorption spectra.

• 出版日期2012-2
• 单位安徽师范大学