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
收藏
页码：1348 / 1350
页数：3
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