Size-Dependent Thermopower of Nickel Nanoparticles

被引：0

作者：

Singh, Jaiveer ^{[1
]}

Kaurav, N. ^{[2
]}

Okram, Gunadhor S. ^{[3
]}

机构：

[1] IPS Acad, ISLE, Dept Phys, Indore 452012, Madhya Pradesh, India

[2] Govt Holkar Sci Coll, Dept Phys, Indore 452017, Madhya Pradesh, India

[3] UGC DAE Consortium Sci Res, Indore 452017, Madhya Pradesh, India

来源：

SOLID STATE PHYSICS: PROCEEDINGS OF THE 58TH DAE SOLID STATE PHYSICS SYMPOSIUM 2013, PTS A & B | 2014年 / 1591卷

关键词：

Nickel nanoparticles; Thermal decomposition method; thermopower;

D O I：

10.1063/1.4872954

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Nickel nanoparticles (Ni-NPs) were prepared by thermal decomposition method using Trioctylphosphine (TOP) and Oleylamine (OA). The average particle size (D) estimated from X-ray diffraction (XRD) using Scherrer equation, to be 1-10nm, systematically decreases with increasing concentration of TOP at constant OA concentration. The observed thermopower strongly depends on particle size particularly at low temperatures reaching a very high value of similar to 10(5) mu V/K (at 20 K), and is attributed to the enhanced grain-boundary scattering combined with quantum confinement.

引用

页码：1348 / 1350

页数：3