Thermal conductivity of ZnTe nanowires

Keivan Davami; Annie Weathers; Nazli Kheirabi; Bohayra Mortazavi; Michael T. Pettes; Li Shi; Jeong Soo Lee; M. Meyyappan

doi:10.1063/1.4824687

Thermal conductivity of ZnTe nanowires

Keivan Davami
, Annie Weathers
, Nazli Kheirabi
, Bohayra Mortazavi
, Michael T. Pettes
, Li Shi
, Jeong Soo Lee
, M. Meyyappan

Research output: Contribution to journal › Article › peer-review

21 Scopus citations

Abstract

The thermal conductivity of individual ZnTe nanowires (NWs) was measured using a suspended micro-bridge device with built-in resistance thermometers. A collection of NWs with different diameters were measured, and strong size-dependent thermal conductivity was observed in these NWs. Compared to bulk ZnTe, NWs with diameters of 280 and 107 nm showed approximately three and ten times reduction in thermal conductivity, respectively. Such a reduction can be attributed to phonon-surface scattering. The contact thermal resistance and the intrinsic thermal conductivities of the nanowires were obtained through a combination of experiments and molecular dynamic simulations. The obtained thermal conductivities agree well with theoretical predictions. © 2013 AIP Publishing LLC.

Original language	English
Article number	134314
Journal	Journal of Applied Physics
Volume	114
Issue number	13
DOIs	https://doi.org/10.1063/1.4824687
State	Published - Oct 18 2013
Externally published	Yes

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title = "Thermal conductivity of ZnTe nanowires",

abstract = "The thermal conductivity of individual ZnTe nanowires (NWs) was measured using a suspended micro-bridge device with built-in resistance thermometers. A collection of NWs with different diameters were measured, and strong size-dependent thermal conductivity was observed in these NWs. Compared to bulk ZnTe, NWs with diameters of 280 and 107 nm showed approximately three and ten times reduction in thermal conductivity, respectively. Such a reduction can be attributed to phonon-surface scattering. The contact thermal resistance and the intrinsic thermal conductivities of the nanowires were obtained through a combination of experiments and molecular dynamic simulations. The obtained thermal conductivities agree well with theoretical predictions. {\textcopyright} 2013 AIP Publishing LLC.",

author = "Keivan Davami and Annie Weathers and Nazli Kheirabi and Bohayra Mortazavi and Pettes, \{Michael T.\} and Li Shi and Lee, \{Jeong Soo\} and M. Meyyappan",

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doi = "10.1063/1.4824687",

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T1 - Thermal conductivity of ZnTe nanowires

AU - Davami, Keivan

AU - Weathers, Annie

AU - Kheirabi, Nazli

AU - Mortazavi, Bohayra

AU - Pettes, Michael T.

AU - Shi, Li

AU - Lee, Jeong Soo

AU - Meyyappan, M.

PY - 2013/10/18

Y1 - 2013/10/18

N2 - The thermal conductivity of individual ZnTe nanowires (NWs) was measured using a suspended micro-bridge device with built-in resistance thermometers. A collection of NWs with different diameters were measured, and strong size-dependent thermal conductivity was observed in these NWs. Compared to bulk ZnTe, NWs with diameters of 280 and 107 nm showed approximately three and ten times reduction in thermal conductivity, respectively. Such a reduction can be attributed to phonon-surface scattering. The contact thermal resistance and the intrinsic thermal conductivities of the nanowires were obtained through a combination of experiments and molecular dynamic simulations. The obtained thermal conductivities agree well with theoretical predictions. © 2013 AIP Publishing LLC.

AB - The thermal conductivity of individual ZnTe nanowires (NWs) was measured using a suspended micro-bridge device with built-in resistance thermometers. A collection of NWs with different diameters were measured, and strong size-dependent thermal conductivity was observed in these NWs. Compared to bulk ZnTe, NWs with diameters of 280 and 107 nm showed approximately three and ten times reduction in thermal conductivity, respectively. Such a reduction can be attributed to phonon-surface scattering. The contact thermal resistance and the intrinsic thermal conductivities of the nanowires were obtained through a combination of experiments and molecular dynamic simulations. The obtained thermal conductivities agree well with theoretical predictions. © 2013 AIP Publishing LLC.

UR - https://www.scopus.com/pages/publications/84885464453

U2 - 10.1063/1.4824687

DO - 10.1063/1.4824687

M3 - Article

SN - 0021-8979

VL - 114

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 13

M1 - 134314

ER -

Thermal conductivity of ZnTe nanowires

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