Gold nanoshells improve single nanoparticle molecular sensors

被引：226

作者：

Raschke, G

Brogl, S

Susha, AS

Rogach, AL

Klar, TA

Feldmann, J

Fieres, B

Petkov, N

Bein, T

Nichtl, A

Kurzinger, K

机构：

[1] Univ Munich, Photon & Optoelect Grp, Dept Phys, D-80799 Munich, Germany

[2] Univ Munich, CeNS, D-80799 Munich, Germany

[3] Univ Munich, Dept Chem, D-81377 Munich, Germany

[4] Univ Munich, CeNS, D-81377 Munich, Germany

[5] Roche Diagnost GmbH, D-82372 Pnezberg, Germany

来源：

NANO LETTERS | 2004年 / 4卷 / 10期

关键词：

D O I：

10.1021/nl049038q

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Molecular sensors based on scattering spectroscopy of single gold nanoparticles can be improved three-fold by the use of gold nanoshells instead of solid gold nanoparticles. The particle plasmon resonance responds more sensitively to changes in the environment, the biological spectral window is accessible, and the scattering spectra show sharper resonances. In particular, we focus our discussion on the narrow homogeneous line width of only 180 meV.

引用

页码：1853 / 1857

页数：5

共 31 条

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