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

doi:10.1021/acs.jpcc.0c06461

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 journal › Article › Scientific › peer-review

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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 language	English
Pages (from-to)	24731-24739
Number of pages	9
Journal	Journal of Physical Chemistry C
Volume	124
Issue number	45
DOIs	https://doi.org/10.1021/acs.jpcc.0c06461
Publication status	Published - 12 Nov 2020
MoE publication type	A1 Journal article-refereed

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10.1021/acs.jpcc.0c06461

acs.jpcc.0c06461Final published version, 2.47 MBLicence: CC BY

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2 Finished

Novel hybrid materials by ALD/MLD: from fundamentals towards applications
Aleksandrova, I., Medina, E., Thomas, C., Karppinen, M., Haggren, A., Multia, J., Ghazy, A., Mustonen, O., Khayyami, A., Revitzer, H., Sederholm, L., Johansson, L. & Madadi, M.
01/09/2016 → 31/08/2020
Project: Academy of Finland: Other research funding
Molecular-Layer-Engineered Inorganic-Organic Hybrid Materials
Giedraityte, Z., Mustonen, O., Multia, J., Philip, A., Srivastava, D., Tripathi, T., Jin, H., Khayyami, A., Krahl, F., Safdar, M., Thomas, C., Ahvenniemi, E., Heiska, J., Medina, E., Ghazy, A., Hagen, D., Lepikko, S., Johansson, L., Karppinen, M., Aleksandrova, I., Haggren, A. & Nisula, M.
23/12/2013 → 31/01/2019
Project: EU: ERC grants

OtaNano - Nanomicroscopy Center
Jani Seitsonen (Manager)
Department of Applied Physics
Facility/equipment: Facility
Raw Materials Research Infrastructure
Maarit Karppinen (Manager)
School of Chemical Engineering
Facility/equipment: Facility

Cite this

@article{3e0e090d87914731b42483a362dd297e,

title = "Experimental Control and Statistical Analysis of Thermal Conductivity in ZnO-Benzene Multilayer Thin Films",

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. ",

author = "Fabian Krahl and Ashutosh Giri and Hoque, {Md Shafkat Bin} and Linda Sederholm and Hopkins, {Patrick E.} and Maarit Karppinen",

note = "| openaire: EC/FP7/339478/EU//LAYERENG-HYBMAT",

year = "2020",

month = nov,

day = "12",

doi = "10.1021/acs.jpcc.0c06461",

language = "English",

volume = "124",

pages = "24731--24739",

journal = "Journal of Physical Chemistry C",

issn = "1932-7447",

publisher = "AMERICAN CHEMICAL SOCIETY",

number = "45",

}

Experimental Control and Statistical Analysis of Thermal Conductivity in ZnO-Benzene Multilayer Thin Films. / Krahl, Fabian; Giri, Ashutosh; Hoque, Md Shafkat Bin; Sederholm, Linda; Hopkins, Patrick E.; Karppinen, Maarit.

In: Journal of Physical Chemistry C, Vol. 124, No. 45, 12.11.2020, p. 24731-24739.

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

TY - JOUR

T1 - Experimental Control and Statistical Analysis of Thermal Conductivity in ZnO-Benzene Multilayer Thin Films

AU - Krahl, Fabian

AU - Giri, Ashutosh

AU - Hoque, Md Shafkat Bin

AU - Sederholm, Linda

AU - Hopkins, Patrick E.

AU - Karppinen, Maarit

N1 - | openaire: EC/FP7/339478/EU//LAYERENG-HYBMAT

PY - 2020/11/12

Y1 - 2020/11/12

N2 - 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.

AB - 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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DO - 10.1021/acs.jpcc.0c06461

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VL - 124

SP - 24731

EP - 24739

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

SN - 1932-7447

IS - 45

ER -

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

Abstract

Access to Document

Novel hybrid materials by ALD/MLD: from fundamentals towards applications

Molecular-Layer-Engineered Inorganic-Organic Hybrid Materials

OtaNano - Nanomicroscopy Center

Raw Materials Research Infrastructure

Cite this