Experimental Control and Statistical Analysis of Thermal Conductivity in ZnO-Benzene Multilayer Thin Films

Fabian Krahl, Ashutosh Giri, Md Shafkat Bin Hoque, Linda Sederholm, Patrick E. Hopkins, Maarit Karppinen*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)
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Abstract

We have fabricated a model system of precisely layer-engineered inorganic-organic thin-film structures using atomic/molecular-layer deposition (ALD/MLD). The samples consist of nanoscale polycrystalline ZnO layers and intervening benzene layers, covering a broad range of layer sequences. The samples characterized in this study combined with previous publications provide an excellent sample set to examine thermal transport properties in inorganic-organic thin films. The cross-plane thermal conductivity is found to depend on multiple factors, with the inorganic-organic interface density being the dominating factor. Our work highlights the remarkable capability of interface engineering in suppressing the thermal conductivity of hybrid inorganic-organic materials, e.g., for thermoelectric applications.

Original languageEnglish
Pages (from-to)24731-24739
Number of pages9
JournalJournal of Physical Chemistry C
Volume124
Issue number45
DOIs
Publication statusPublished - 12 Nov 2020
MoE publication typeA1 Journal article-refereed

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