Theoretical and experimental investigation on enhanced thermal behaviour in chunk-shaped nano ZnO

被引：5

作者：

Rajamanickam, N. ^{[1
]}

Rajashabala, S. ^{[1
]}

Ramachandran, K. ^{[1
]}

机构：

[1] Madurai Kamaraj Univ, Sch Phys, Madurai 625021, Tamil Nadu, India

来源：

MOLECULAR PHYSICS | 2014年 / 112卷 / 01期

关键词：

photoacoustics; chunk-shaped ZnO nanostructures; thermal conductivity; molecular dynamics simulation; ZINC-OXIDE; OPTICAL-PROPERTIES; THIN-FILMS; PHOTOLUMINESCENCE; CONDUCTIVITY; COATINGS; SOLIDS; GREEN; STATE;

D O I：

10.1080/00268976.2013.805265

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：

Thermal properties of chunk-shaped ZnO nanostructures are studied for diffusivity, conductivity, and effusivity by photoacoustics (PA) and simulation methods. Thermal conductivity of nano ZnO was determined from simulation in the temperature range of 100-1000K. Thermal conductivity of ZnO nanostructures at room temperature is approximately 52 and 128times lower than that of bulk ZnO for PA and simulation, respectively. For simulation, Tersoff potential is used for the interatomic interaction. The velocity autocorrelation function and Green-Kubo relation are used to compute the thermal conductivity.

引用

页码：142 / 150

页数：9

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