Mixing Does the Magic: A Rapid Synthesis of High Surface Area Noble Metal Nanosponges Showing Broadband Nonlinear Optical Response

被引：116

作者：

Krishna, Katla Sai ^{[1
]}

Sandeep, C. S. Suchand ^{[2
]}

Philip, Reji ^{[2
]}

Eswaramoorthy, Muthusamy ^{[1
]}

机构：

[1] Jawaharlal Nehru Ctr Adv Sci Res, DST Unit Nanosci, Chem & Phys Mat Unit, Nanomat & Catalysis Lab, Bangalore 560064, Karnataka, India

[2] Raman Res Inst, Light & Matter Phys LAMP Grp, Bangalore 560080, Karnataka, India

来源：

ACS NANO | 2010年 / 4卷 / 05期

关键词：

nanosponges; porous nanostructures; noble metals; optical limiting; SERS; NANOWIRE NETWORKS; GOLD CATALYSTS; POROUS GOLD; SILVER; OXIDATION;

D O I：

10.1021/nn100320s

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Here we report an instantaneous formation of high surface area metal nanosponges through a one-step inexpensive method in a completely green solvent, water. Merely by optimizing the concentration of the precursors and the reducing agent, we were able to generate a three-dimensional porous structure made up of nanowire networks. This is a general process, involves a simple, room temperature reduction of metal salts with sodium borohydride, and is therefore scalable to any amount. Further, these nanoporous metals because of their network structures show optical limiting behavior of a true broadband nature that would find applications in optoelectronic nanodevices.

引用

页码：2681 / 2688

页数：8

共 43 条

[21] Picosecond optical nonlinearity in monolayer-protected gold, silver, and gold-silver alloy nanoclusters [J].