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Krahl F, Giri A, Hoque MSB, Sederholm L, Hopkins PE, Karppinen M. Experimental Control and Statistical Analysis of Thermal Conductivity in ZnO-Benzene Multilayer Thin Films. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2020; 124:24731-24739. [PMID: 33214799 PMCID: PMC7667989 DOI: 10.1021/acs.jpcc.0c06461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 10/13/2020] [Indexed: 06/11/2023]
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.
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Affiliation(s)
- Fabian Krahl
- Department
of Chemistry and Materials Science, Aalto
University, Fi-00076 Aalto, Finland
| | - Ashutosh Giri
- Department
of Mechanical and Aerospace Engineering, University of Virginia, Charlottesville, Virginia 22904, United States
- Department
of Mechanical, Industrial and Systems Engineering, University of Rhode Island, Kingston, Rhode Island 02881, United States
| | - Md Shafkat Bin Hoque
- Department
of Mechanical and Aerospace Engineering, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Linda Sederholm
- Department
of Chemistry and Materials Science, Aalto
University, Fi-00076 Aalto, Finland
| | - Patrick E. Hopkins
- Department
of Mechanical and Aerospace Engineering, University of Virginia, Charlottesville, Virginia 22904, United States
- Department
of Materials Science and Engineering, University
of Virginia, Charlottesville, Virginia 22904, United States
- Department
of Physics, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Maarit Karppinen
- Department
of Chemistry and Materials Science, Aalto
University, Fi-00076 Aalto, Finland
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Tiittanen T, Vasala S, Karppinen M. Assessment of magnetic properties of A2B′B′′O6 double perovskites by multivariate data analysis techniques. Chem Commun (Camb) 2019; 55:1722-1725. [DOI: 10.1039/c8cc09579e] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Multivariate data analysis is used in search of novel magnetically ordered perovskite oxides of the A2B′B′′O6 type.
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Affiliation(s)
- Taneli Tiittanen
- Department of Chemistry and Materials Science
- Aalto University
- FI-00076 Espoo
- Finland
| | - Sami Vasala
- Department of Chemistry and Materials Science
- Aalto University
- FI-00076 Espoo
- Finland
- Technische Universität Darmstadt
| | - Maarit Karppinen
- Department of Chemistry and Materials Science
- Aalto University
- FI-00076 Espoo
- Finland
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