Interlayer thermal conductivity of rubrene measured by ac-calorimetry

H. Zhang, J. W. Brill

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12 Scopus citations

Abstract

We have measured the interlayer thermal conductivity of crystals of the organic semiconductor rubrene, using ac-calorimetry. Since ac-calorimetry is most commonly used for measurements of the heat capacity, we include a discussion of its extension for measurements of the transverse thermal conductivity of thin crystals of poor thermal conductors, including the limitations of the technique. For rubrene, we find that the interlayer thermal conductivity, ≈0.7 mW/cm·K, is several times smaller than the (previously measured) in-layer value, but its temperature dependence indicates that the interlayer mean free path is at least a few layers.

Original languageEnglish
Article number043508
JournalJournal of Applied Physics
Volume114
Issue number4
DOIs
StatePublished - Jul 28 2013

Bibliographical note

Funding Information:
We thank Vitaly Podzorov and Yuanzhen Chen for providing rubrene samples, John Anthony for providing TIPS-pn samples, and Emily Bittle, Xiunu Lin, and Yulong Yao for technical assistance. This research was supported in part by the U.S. National Science Foundation through Grant Nos. DMR-0800367 and EPS-0814194 and the Center for Advanced Materials.

ASJC Scopus subject areas

  • Physics and Astronomy (all)

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