@article{Wang2015, 
author = {Jiahong Wang and Hao Huang and Daquan Zhang and Ming Chen and Yafang Zhang and Xuefeng Yu and Li Zhou and Ququan Wang},
title = {Synthesis of gold/rare-earth-vanadate core/shell nanorods for integrating plasmon resonance and fluorescence},
year = {2015},
journal = {Nano Research},
volume = {8},
number = {8},
pages = {2548-2561},
keywords = {fluorescence, gold nanorods, ion exchange, rare-earth vanadates, core/shell heterostructures},
url = {https://www.sciopen.com/article/10.1007/s12274-015-0761-7},
doi = {10.1007/s12274-015-0761-7},
abstract = {The nanoscale core/shell heterostructure is a particularly efficient motif to combine the promising properties of plasmonic materials and rare-earth compounds; however, there remain significant challenges in the synthetic control due to the large interfacial energy between these two intrinsically unmatched materials. Herein, we report a synthetic route to grow rare-earth-vanadate shells on gold nanorod (AuNR) cores. After modifying the AuNR surface with oleate through a surfactant exchange, well-packaged rare-earth oxide (e.g., Gd2O3: Eu) shells are grown on AuNRs as a result of the multiple roles of oleate. Furthermore, the composition of the shell has been altered from oxide to vanadate (GdVO4: Eu) using an anion exchange method. Owing to the carefully designed strategy, the AuNR cores maintain the morphology during the synthesis process; thus, the final Au/GdVO4: Eu core/shell NRs exhibit strong absorption bands and high photothermal efficiency. In addition, the Au/GdVO4: Eu NRs exhibit bright Eu3+ fluorescence with quantum yield as high as ~17%; bright Sm3+ and Dy3+ fluorescence can also be obtained by changing the lanthanide doping in the oxide formation. Owing to the attractive integration of the plasmonic and fluorescence properties, such core/shell heterostructures will find particular applications in a wide array of areas, from biomedicine to energy.}
}