Optical limiting of a covalently bonded gold nanoparticle/polylysine hybrid material

被引：46

作者：

Sun, WF ^{[1
]}

Dai, Q

Worden, JG

Huo, Q

机构：

[1] N Dakota State Univ, Dept Chem Biochem & Mol Biol, Fargo, ND 58105 USA

[2] N Dakota State Univ, Dept Coatings & Polymer Mat, Fargo, ND 58105 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2005年 / 109卷 / 44期

关键词：

D O I：

10.1021/jp055109d

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The optical limiting performance of a covalently bonded gold nanoparticle (similar to 2 nm)/polylysine hybrid material (AuNP-PLL) was investigated using 4.1 ns laser pulses at 532 nm. The hybrid material exhibits enhanced optical limiting in comparison to individual nanoparticles, presumably due to the interparticle electromagnetic interactions between particles in close proximity. Reverse saturable absorption and/or free carrier absorption were found to be the dominant contributor(s) to the optical limiting of the hybrid material.

引用

页码：20854 / 20857

页数：4

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