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Micromachines
Special Issues
Multifunctional Micro/Nanomaterials for Energy Applications
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Multifunctional Micro/Nanomaterials for Energy Applications

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "E：Engineering and Technology".

Deadline for manuscript submissions: closed (30 June 2024) | Viewed by 3379

Special Issue Editors

Dr. Joongbae Kim

E-Mail Website
Guest Editor
Department of Mechanical and Automotive Engineering, Kongju National University, Cheonan 31080, Republic of Korea
Interests: micro/nanoparticles; heat transfer; thermal management; energy
Dr. Caiyan Qin

E-Mail Website
Guest Editor
School of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen 518055, China
Interests: solar thermal utilization; plasmonicsolar heating systems; plasmonic; micro/nanoparticles
Dr. Bumjoo Kim

E-Mail Website
Guest Editor
Department of Mechanical and Automotive Engineering, Kongju National University, Cheonan 31080, Republic of Korea
Interests: micro/nano fluidics; electrokinetics; desalination; ion exchange membrane; lab-on-a-chip
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In recent years, micro/nanomaterials have gained increasing attention in the fields of chemistry, optics, semiconductors, and energy. These materials exhibit behaviors distinct from macroscopic perspectives and bring imaginary technologies to life. For example, it is possible to achieve artificial optical properties through metamaterials that cannot be obtained under natural conditions. This fascinating phenomenon is observed in micro/nanomaterials; it also appears in chemistry, physics, biology, and photonics. Thus, fundamental and application research related to these intriguing phenomena has been extensively investigated, and micro/nanomaterials are expected to provide tremendous opportunities for various applications. 

This Special Issue aims to place a spotlight on the advancements in the theory, fabrication, and, in particular, the energy applications of micro/nanomaterials. By focusing on the intersection of micro/nanomaterials and energy, we seek to provide readers with valuable insights into the latest developments in this dynamic field. We invite you to contribute your research to this Special Issue, highlighting the progress and potential of micro/nanomaterials in energy applications.

Dr. Joongbae Kim
Dr. Caiyan Qin
Dr. Bumjoo Kim
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. Micromachines 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 2100 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.

Keywords

  • micro/nanomaterials
  • fabrication of micro/nanomaterials
  • micro/nanoparticles
  • heat and mass transfer
  • application of micro/nanomaterials
  • energy applications

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Published Papers (1 paper)

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Research

13 pages, 17274 KiB  
Article
Development of High-Performance Flexible Radiative Cooling Film Using PDMS/TiO2 Microparticles
by Junbo Jung, Siwon Yoon, Bumjoo Kim and Joong Bae Kim
Micromachines 2023, 14(12), 2223; https://doi.org/10.3390/mi14122223 - 10 Dec 2023
Cited by 9 | Viewed by 3028
Abstract
Radiative cooling, which cools an object below its surrounding temperature without any energy consumption, is one of the most promising techniques for zero-energy systems. In principle, the radiative cooling technique reflects incident solar energy and emits its thermal radiation energy into outer space. [...] Read more.
Radiative cooling, which cools an object below its surrounding temperature without any energy consumption, is one of the most promising techniques for zero-energy systems. In principle, the radiative cooling technique reflects incident solar energy and emits its thermal radiation energy into outer space. To achieve maximized cooling performance, it is crucial to attain high spectral reflectance in the solar spectrum (0.3–2.5 μm) and high spectral emittance in the atmospheric window (8–13 μm). Despite the development of various radiative cooling techniques such as photonic crystals and metamaterials, applying the cooling technology in practical applications remains challenging due to its low flexibility and complicated manufacturing processes. Here, we develop a high-performance radiative cooling film using PDMS/TiO2 microparticles. Specifically, the design parameters such as microparticle diameter, microparticle volume fraction, and film thickness are considered through optical analysis. Additionally, we propose a novel fabrication process using low viscosity silicone oil for practical fabrication. The fabricated film accomplishes 67.1 W/m2 of cooling power, and we also analyze the cooling performance difference depending on the fabrication process based on the measurement and optical calculation results. Full article
(This article belongs to the Special Issue Multifunctional Micro/Nanomaterials for Energy Applications)
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