Fabrication and optical studies of monolayer assemblies of Au nanoparticles

Kavita Borgohain, Fu Han Ho, Hau Ming Chen, Ru Shi Liu, Shu Fen Hu, Din Ping Tsai*


研究成果: 雜誌貢獻期刊論文同行評審

1 引文 斯高帕斯(Scopus)


Two-dimensional nanoparticle self-assemblies provide a means of tuning the optical properties by manipulation of the fabrication parameters, thereby controlling the light-matter interaction. We report fabrication of self-assembled monolayers of colloidal gold nanoparticles on organosilane-coated substrates and a study of the linear and nonlinear optical properties. With increase in particle coverage of the gold monolayer self assemblies, an additional band in the absorption spectrum due to the collective particle surface plasmon resonance could be seen. The intensity and λ max of this feature depends on the interparticle spacing and particle aggregation. Z-scan measurements show a saturable absorption behavior and a negative nonlinear refractive index of the monolayer films. A strong correlation between particle density and the linear and nonlinear optical properties is established.

頁(從 - 到)I83-I89
發行號5 SUPPL.
出版狀態已發佈 - 2004

ASJC Scopus subject areas

  • 原子與分子物理與光學
  • 儀器


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