Sintering of alkanethiol-capped gold and platinum nanoclusters

被引：34

作者：

Martin, JE ^{[1
]}

Odinek, J ^{[1
]}

Wilcoxon, JP ^{[1
]}

Anderson, RA ^{[1
]}

Provencio, P ^{[1
]}

机构：

[1] Sandia Natl Labs, Albuquerque, NM 87185 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2003年 / 107卷 / 02期

关键词：

D O I：

10.1021/jp020489d

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：

One of the unusual properties of metal nanoclusters is the size dependence of the melting temperature. Studies show that the melting temperature is a decreasing function of the cluster diameter, although the actual dependence is not known, due to the difficulties associated with the experimental measurements. We have synthesized narrow dispersity alkanethiol-functionalized An and Pt nanoclusters in inverse micellar solutions and have measured the sintering temperatures of these films using a capacitance technique to determine the onset of film conductivity. Cluster sintering is accompanied by pronounced optical changes and a thermal signature that can be observed in differential thermal analysis. The large optical absorbance of nanocluster films makes laser sintering a practical method for the formation of metallization layers.

引用

页码：430 / 434

页数：5

共 14 条

[1] SYNTHESIS OF THIOL-DERIVATIZED GOLD NANOPARTICLES IN A 2-PHASE LIQUID-LIQUID SYSTEM [J].