Cited by 105Thermal properties of materialsThermal Radiation and Cooling TechnologiesMetal and Thin Film Mechanics

Ultralow Thermal Conductivity of Atomic/Molecular Layer-Deposited Hybrid Organic–Inorganic Zincone Thin Films

Liu, Jun, Yoon, Byunghoon, Kuhlmann, Eli, Tian, Miao, Zhu, Jie, George, Steven M., Lee, Yung-Cheng, Yang, Ronggui·2013·Nano Letters

Abstract

Atomic layer deposition (ALD) and molecular layer deposition (MLD) techniques with atomic level control enable a new class of hybrid organic-inorganic materials with improved functionality. In this work, the cross-plane thermal conductivity and volumetric heat capacity of three types of hybrid organic-inorganic zincone thin films enabled by MLD processes and alternate ALD-MLD processes were measured using the frequency-dependent time-domain thermoreflectance method. We revealed the critical role of backbone flexibility in the structural morphology and thermal conductivity of MLD zincone thin films by comparing the thermal conductivity of MLD zincone films with an aliphatic backbone to that with aromatic backbone. Much lower thermal conductivity values were obtained in ALD/MLD-enabled hybrid organic-inorganic zincone thin films compared to that of the ALD-enabled W/Al2O3 nanolaminates reported by Costescu et al. [Science 2004, 303, 989-990], which suggests that the dramatic material difference between organic and inorganic materials may provide a route for producing materials with ultralow thermal conductivity.

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Crossref · 10.1021/nl403244s

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Authors
Liu, J., Yoon, B., Kuhlmann, E., Tian, M., Zhu, J., George, S. M., Lee, Y.-C., & Yang, R.
Affiliations
  • Department of Mechanical Engineering, University of Colorado, Boulder, Colorado, 80309, United States
  • University of Colorado Boulder (US)
  • Chinese Academy of Sciences (CN)
Corresponding author
Yang, Ronggui
Venue
Nano Letters
Published
2013-10-29
Volume
13
Issue
11
Pages
5594-5599
ISSN
  • 1530-6984 (ISSN-L)
  • 1530-6992
OpenAlex
W2318379119
Cited by
105
References
39
Citations by year
2026: 1 · 2025: 4 · 2024: 5 · 2023: 6 · 2022: 5 · 2021: 5 · 2020: 14 · 2019: 10 · 2018: 9 · 2017: 9 · 2016: 14 · 2015: 14 · 2014: 9
FWCI
5.56
Type
journal article
Language
en
Open access
closed
Locations
  • Nano Letters (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Natural Science Foundation of China
  • Defense Advanced Research Projects Agency
Topics
  • Physical Sciences › Materials Science › Materials Chemistry › Thermal properties of materials
  • Physical Sciences › Engineering › Civil and Structural Engineering › Thermal Radiation and Cooling Technologies
  • Physical Sciences › Engineering › Mechanics of Materials › Metal and Thin Film Mechanics
Keywords
organic-inorganic hybrid materials, molecular layer deposition, atomic layer deposition, ultralow thermal conductivity, volumetric heat capacity, backbone flexibility, through-plane thermal conductivity, time-domain thermoreflectance, thermal insulation
MeSH terms
Formazans, Hot Temperature, Inorganic Chemicals, Organic Chemicals, Particle Size, Surface Properties, Thermal Conductivity, Nanotechnology, Biomimetic Materials, Nanostructures

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