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Synthesis of Fulleride Thin Films with Ultra-low Thermal Conductivity.

Published online by Cambridge University Press:  22 August 2011

Michael H. Check ,
Douglas S. Dudis ,
John B. Ferguson ,
Jamie J. Gengler ,
Jianjun Hu ,
Zachary S. Votaw  and
Andrey A. Voevodin
Michael H. Check
Affiliation:
Universal Technology Corporation, 1270 North Fairfield Road, Dayton, OH 45432 Thermal Sciences and Materials Branch, Materials and Manufacturing Directorate, Air Force Research Laboratory (AFRL), 2941 Hobson Way, Wright-Patterson AFB, OH 45433
Douglas S. Dudis
Affiliation:
Thermal Sciences and Materials Branch, Materials and Manufacturing Directorate, Air Force Research Laboratory (AFRL), 2941 Hobson Way, Wright-Patterson AFB, OH 45433
John B. Ferguson
Affiliation:
Thermal Sciences and Materials Branch, Materials and Manufacturing Directorate, Air Force Research Laboratory (AFRL), 2941 Hobson Way, Wright-Patterson AFB, OH 45433
Jamie J. Gengler
Affiliation:
Thermal Sciences and Materials Branch, Materials and Manufacturing Directorate, Air Force Research Laboratory (AFRL), 2941 Hobson Way, Wright-Patterson AFB, OH 45433 Spectral Energies,LLC, 5100 Springfield St., Suite 301, Dayton, OH 45431
Jianjun Hu
Affiliation:
University of Dayton Research Institute, 300 College Park, Dayton, OH 45469
Zachary S. Votaw
Affiliation:
Thermal Sciences and Materials Branch, Materials and Manufacturing Directorate, Air Force Research Laboratory (AFRL), 2941 Hobson Way, Wright-Patterson AFB, OH 45433 SOCHE, 3155 Research Blvd., Suite 204, Dayton, OH 45420
Andrey A. Voevodin
Affiliation:
Thermal Sciences and Materials Branch, Materials and Manufacturing Directorate, Air Force Research Laboratory (AFRL), 2941 Hobson Way, Wright-Patterson AFB, OH 45433
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Abstract:

In the past two decades, there has been growing interests in the design and improvement of thermoelectric (TE) materials and devices largely due to their potential use in technologies such as: 1) the conversion of waste heat to electricity, 2) solid-state refrigeration and heating, 3) biomedical batteries, and 4) power sources for both ground and space-based electronics.1 Recent research has suggested that by using nanotechnology (i.e. nanostructuring / nanoengineering) large advances can be gained in controlling interfaces to hinder thermal transport while allowing electrical movement. Thin film structuring of thermoelectric materials potentially offers several advantages over bulk thermoelectric materials especially for cooling applications. Furthermore, others have advocated that by making thermoelectric materials very small, one can achieve an enhanced ZT (the thermoelectric figure of merit) due to quantum confinement effects.2-5 The structure and physical properties of doped fullerene materials were investigated for use as electrically conducting phonon blocking layers. The synthesis and thermal properties of ZnxC60 thin films are reported. Preliminary results have shown the formation of amorphous fullerides structures with thermal conductivities as low as 0.13 Wm-1K-1. Physical and structural measurements (e.g. Electron Microscopy, Electron Diffraction, and Raman Spectroscopy) will be reported detailing the unique structure-property relationships in these materials.

Keywords

Znthin filmthermal conductivity
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1329: Symposium I – Nanoscale Heat Transfer–Thermoelectrics, Thermophotovoltaics and Emerging Thermal Devices , 2011 , mrss11-1329-i10-27
Copyright
Copyright © Materials Research Society 2011

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