Enhanced optical responses of Au@Pd core/shell nanobars.

  title={Enhanced optical responses of Au@Pd core/shell nanobars.},
  author={Ke Zhang and Yanjuan Xiang and Xiaochun Wu and Lili Feng and Weiwei He and Jianbo Liu and Weiya Zhou and Sishen Xie},
  journal={Langmuir : the ACS journal of surfaces and colloids},
  volume={25 2},
A Pd nanoshell was epitaxially grown on a Au nanorod (NR) via simple seed-mediated growth. Compared with the cylindrical shape of the Au NR, the Au core/Pd shell (Au@Pd) nanorods change to a rectangular shape due to the disappearance of {110} facets. The Au NRs exhibit a strong longitudinal surface plasmon resonance (LSPR). As Pd is deposited, damping and broadening occur to the LSPR band. Interestingly, the LSPR band maximum first shows a small red-shift (ca. 40 nm) which then is followed by a… CONTINUE READING