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Coatings
Special Issues
Micro- and Nanoscale Surface Engineering for Thermal Transport and Harvesting
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Micro- and Nanoscale Surface Engineering for Thermal Transport and Harvesting

A special issue of Coatings (ISSN 2079-6412).

Deadline for manuscript submissions: closed (30 April 2020) | Viewed by 14223

Special Issue Editors

Prof. Dr. Sebastian Volz

E-Mail Website
Guest Editor
Laboratory for Integrated Micro and Mechatronic Systems, CNRS-IIS UMI 2820, The University of Tokyo, Tokyo 153-8505, Japan
Interests: heat transfer; infrared spectroscopy; thermal physics; condensed matter physics; molecular dynamics; phonon transport
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Shiyun Xiong

E-Mail Website
Guest Editor
Department of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
Interests: nanoscale thermal transport; atomistic simulations
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue on “Micro- and Nanoscale Surface Engineering for Thermal Transport and Harvesting” promotes an original corpus of articles featuring the latest fundamental and methodological developments on surface thermal properties. Surface and interfacial properties are intrinsically involved with ultimate scales related to the mode wavelength down to the atomic positions. In this range, how energy is reflected at a surface, transmitted at an interface or propagating along both, remains an open scientific question. While semi-empirical models, including average parameters and often macroscopic quantities, have been the reference for decades, not only key physical concepts but also a large ensemble of crucial microscopic quantities are still missing to correctly address the problem of energy reflection, transmission and propagation at an interface. This question obviously requires the development of advanced theoretical, simulation and experimental tools.

With the progresses of low-dimensional materials, as well as of molecular transport, a new toolbox is now proposed that allows for designing thermal interfacial properties beyond the state-of-the-art. Be they based on graphene, nanotubes, nanowires, nanofilms or on various types of functionalization, such as SAMs (self-assembled monolayers), interfacial properties are governing the performances of nano-composite at broad, thermal interface materials, heat spreaders, radiatively absorbing and coolant films to name a few.

Downstream, thermoelectric conversion, photovoltaics, solar thermal energy harvesters, porous insulators and also thermal management of opto/electronic/mechanical micro devices are, for instance, impacted.

With this Special Issue, we are excited to welcome any creative, state-of-the-art-and-beyond, as well as review, contributions to give body to the here-defined, fertile and amazing field of thermal surface engineering.    

In particular, the topics of interest include, but are not limited to:

  • Fundamentals and new methodologies in thermal interfaces and coatings;
  • Surface/interface thermal design of 2D-materials, nanostructures and polymers;
  • Surface micro- and nanostructuration for the monitoring of radiative properties;
  • Thermal spreaders and interfacial materials, radiative absorbers and coolants;
  • Surface engineering in Thermoelectricity and Photovoltaics.

Prof. Dr. Sebastian Volz
Prof. Dr. Shiyun Xiong
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Coatings is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

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  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
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Further information on MDPI's Special Issue policies can be found here.

Published Papers (2 papers)

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13 pages, 2155 KiB  
Article
Electronic and Thermoelectric Properties of V2O5, MgV2O5, and CaV2O5
by Xiaofei Sheng, Zhuhong Li and Yajuan Cheng
Coatings 2020, 10(5), 453; https://doi.org/10.3390/coatings10050453 - 7 May 2020
Cited by 23 | Viewed by 4538
Abstract
Developing new thermoelectric materials with high performance can broaden the thermoelectric family and is the key to fulfill extreme condition applications. In this work, we proposed two new high-temperature thermoelectric materials—MgV2O5 and CaV2O5—which are derived from [...] Read more.
Developing new thermoelectric materials with high performance can broaden the thermoelectric family and is the key to fulfill extreme condition applications. In this work, we proposed two new high-temperature thermoelectric materials—MgV2O5 and CaV2O5—which are derived from the interface engineered V2O5. The electronic and thermoelectric properties of V2O5, MgV2O5, and CaV2O5 were calculated based on first principles and Boltzmann semi-classical transport equations. It was found that although V2O5 possessed a large Seebeck coefficient, its large band gap strongly limited the electrical conductivity, hence hindering it from being good thermoelectric material. With the intercalation of Mg and Ca atoms into the van der Waals interfaces of V2O5, i.e., forming MgV2O5 and CaV2O5, the electronic band gaps could be dramatically reduced down to below 0.1 eV, which is beneficial for electrical conductivity. In MgV2O5 and CaV2O5, the Seebeck coefficient was not largely affected compared to V2O5. Consequently, the thermoelectric figure of merit was expected to be improved noticeably. Moreover, the intercalation of Mg and Ca atoms into the V2O5 van der Waals interfaces enhanced the anisotropic transport and thus provided a possible way for further engineering of their thermoelectric performance by nanostructuring. Our work provided theoretical guidelines for the improvement of thermoelectric performance in layered oxide materials. Full article
(This article belongs to the Special Issue Micro- and Nanoscale Surface Engineering for Thermal Transport and Harvesting)
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Review

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28 pages, 4723 KiB  
Review
Review of Micro–Nanoscale Surface Coatings Application for Sustaining Dropwise Condensation
by Shoukat Alim Khan, Furqan Tahir, Ahmer Ali Bozdar Baloch and Muammer Koc
Coatings 2019, 9(2), 117; https://doi.org/10.3390/coatings9020117 - 13 Feb 2019
Cited by 48 | Viewed by 9125
Abstract
Condensation occurs in most of the heat transfer processes, ranging from cooling of electronics to heat rejection in power plants. Therefore, any improvement in condensation processes will be reflected in the minimization of global energy consumption, reduction in environmental burdens, and development of [...] Read more.
Condensation occurs in most of the heat transfer processes, ranging from cooling of electronics to heat rejection in power plants. Therefore, any improvement in condensation processes will be reflected in the minimization of global energy consumption, reduction in environmental burdens, and development of sustainable systems. The overall heat transfer coefficient of dropwise condensation (DWC) is higher by several times compared to filmwise condensation (FWC), which is the normal mode in industrial condensers. Thus, it is of utmost importance to obtain sustained DWC for better performance. Stability of DWC depends on surface hydrophobicity, surface free energy, condensate liquid surface tension, contact angle hysteresis, and droplet removal. The required properties for DWC may be achieved by micro–nanoscale surface modification. In this survey, micro–nanoscale coatings such as noble metals, ion implantation, rare earth oxides, lubricant-infused surfaces, polymers, nanostructured surfaces, carbon nanotubes, graphene, and porous coatings have been reviewed and discussed. The surface coating methods, applications, and enhancement potential have been compared with respect to the heat transfer ability, durability, and efficiency. Furthermore, limitations and prevailing challenges for condensation enhancement applications have been consolidated to provide future research guidelines. Full article
(This article belongs to the Special Issue Micro- and Nanoscale Surface Engineering for Thermal Transport and Harvesting)
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