Near-field radiative transfer in spectrally tunable double-layer phonon-polaritonic metamaterials

Name: Near-field radiative transfer in spectrally tunable double-layer phonon-polaritonic metamaterials
Author: Azadeh, Didari, Elçioğlu, E. B., Okutucu-Özyurt, T., Mengüç, Mustafa Pınar

İsim	Near-field radiative transfer in spectrally tunable double-layer phonon-polaritonic metamaterials
Yazar	Azadeh, Didari, Elçioğlu, E. B., Okutucu-Özyurt, T., Mengüç, Mustafa Pınar
Basım Tarihi:	2018-06
Basım Yeri	- Elsevier
Konu	Near-field thermal radiation, Surface phonon polariton, Double-layer, Metamaterial, Nano-scale gap, Corrugated surface
Tür	Süreli Yayın
Dil	İngilizce
Dijital	Evet
Yazma	Hayır
Kütüphane:	Özyeğin Üniversitesi
Demirbaş Numarası	0022-4073
Kayıt Numarası	df4ba394-db70-4beb-a65b-01524e9d5a7c
Lokasyon	Mechanical Engineering
Tarih	2018-06
Notlar	TÜBİTAK ; Ozyegin University
Örnek Metin	Understanding of near-field radiative transfer is crucial for many advanced applications such as nanoscale energy harvesting, nano-manufacturing, thermal imaging, and radiative cooling. Near-field radiative transfer has been shown to be dependent on the material and morphological characteristics of systems, the gap distances between structures, and their temperatures. Surface interactions of phononic materials in close proximity of each other has led to promising results for novel near-field radiative transfer applications. For systems involving thin films and small structures, as the dimension(s) through which the heat transfer takes place is/are on the order of sub-micrometers, it is important to identify the impacts of size-related parameters on the results. In this work, we investigated the impact of geometric design and characteristics in a double-layer metamaterial system made up of GaN, SiC, h-BN; all of which have potential importance in micro-and nano-technological systems. The numerical study is performed using the NF-RT-FDTD algorithm, which is a versatile method to study near-field thermal radiation performances of advanced configurations of materials, even with arbitrary shapes. We have systematically investigated the thin film thickness, the substrate material, and the nanostructured surfaces effects, and reported on the best combination of scenarios among the studied cases to obtain maximum enhancement of radiative heat transfer rate. The findings of this work may be used in design and fabrication of new corrugated surfaces for energy harvesting purposes.
DOI	10.1016/j.jqsrt.2018.03.015
Cilt	212

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Near-field radiative transfer in spectrally tunable double-layer phonon-polaritonic metamaterials

Yazar Azadeh, Didari, Elçioğlu, E. B., Okutucu-Özyurt, T., Mengüç, Mustafa Pınar

Basım Tarihi 2018-06

Basım Yeri - Elsevier

Konu Near-field thermal radiation, Surface phonon polariton, Double-layer, Metamaterial, Nano-scale gap, Corrugated surface

Tür Süreli Yayın

Dil İngilizce

Dijital Evet

Yazma Hayır

Kütüphane Özyeğin Üniversitesi

Demirbaş Numarası 0022-4073

Kayıt Numarası df4ba394-db70-4beb-a65b-01524e9d5a7c

Lokasyon Mechanical Engineering

Tarih 2018-06

Notlar TÜBİTAK ; Ozyegin University

Örnek Metin Understanding of near-field radiative transfer is crucial for many advanced applications such as nanoscale energy harvesting, nano-manufacturing, thermal imaging, and radiative cooling. Near-field radiative transfer has been shown to be dependent on the material and morphological characteristics of systems, the gap distances between structures, and their temperatures. Surface interactions of phononic materials in close proximity of each other has led to promising results for novel near-field radiative transfer applications. For systems involving thin films and small structures, as the dimension(s) through which the heat transfer takes place is/are on the order of sub-micrometers, it is important to identify the impacts of size-related parameters on the results. In this work, we investigated the impact of geometric design and characteristics in a double-layer metamaterial system made up of GaN, SiC, h-BN; all of which have potential importance in micro-and nano-technological systems. The numerical study is performed using the NF-RT-FDTD algorithm, which is a versatile method to study near-field thermal radiation performances of advanced configurations of materials, even with arbitrary shapes. We have systematically investigated the thin film thickness, the substrate material, and the nanostructured surfaces effects, and reported on the best combination of scenarios among the studied cases to obtain maximum enhancement of radiative heat transfer rate. The findings of this work may be used in design and fabrication of new corrugated surfaces for energy harvesting purposes.

DOI 10.1016/j.jqsrt.2018.03.015

Cilt 212