scholarly journals An Origami Heat Radiation Fin for Use in a Stretchable Thermoelectric Generator

Micromachines ◽  
2020 ◽  
Vol 11 (3) ◽  
pp. 263
Author(s):  
Momoe Akuto ◽  
Eiji Iwase
Keyword(s):  
Surface Area ◽  
Thermoelectric Generator ◽  
Electronic Devices ◽  
High Heat ◽  
Large Surface Area ◽  
Heat Radiation ◽  
Thermoelectric Generators ◽  
Folded Structure ◽  
Highly Stretchable ◽  
The Stability

Recently, some studies have addressed the use of a folded substrate to realize stretchable electronic devices including stretchable thermoelectric generators (TEGs). However, the utilization of the folded substrate as a heat radiation fin has not been achieved. Herein, we have proposed the construction of a TEG with an origami-like folded structure substrate called an “origami-fin” that can achieve a high heat radiation performance and is also highly stretchable. The origami-fin increases the stretchability of the TEG by bending a non-stretchable material into a folded shape, and it also works as a heat radiator because of its large surface area compared to that of a flat structure. We evaluated the heat radiation performance of the origami-fin and the stability of the performance when it was stretched. The results demonstrate that the origami-fin works as a heat radiator and enhances the output of the TEG, while also exhibiting a high stretchability with only a slight output reduction.

scholarly journals Large-surface-area diamond (111) crystal plates for applications in high-heat-load wavefront-preserving X-ray crystal optics

2016 ◽  
Vol 23 (5) ◽  
pp. 1118-1123 ◽  
Author(s):  
Stanislav Stoupin ◽  
Sergey Antipov ◽  
James E. Butler ◽  
Alexander V. Kolyadin ◽  
Andrey Katrusha
Keyword(s):  
Surface Area ◽  
Heat Load ◽  
Crystal Surface ◽  
High Heat ◽  
Peak Position ◽  
Large Surface Area ◽  
Crystal Optics ◽  
Rocking Curve ◽  
X Ray ◽  
High Heat Load

Fabrication and results of high-resolution X-ray topography characterization of diamond single-crystal plates with large surface area (10 mm × 10 mm) and (111) crystal surface orientation for applications in high-heat-load X-ray crystal optics are reported. The plates were fabricated by laser-cutting of the (111) facets of diamond crystals grown using high-pressure high-temperature methods. The intrinsic crystal quality of a selected 3 mm × 7 mm crystal region of one of the studied samples was found to be suitable for applications in wavefront-preserving high-heat-load crystal optics. Wavefront characterization was performed using sequential X-ray diffraction topography in the pseudo plane wave configuration and data analysis using rocking-curve topography. The variations of the rocking-curve width and peak position measured with a spatial resolution of 13 µm × 13 µm over the selected region were found to be less than 1 µrad.

Functional Two-Dimensional Black Phosphorus Nanostructures towards Next-Generation Devices

2021 ◽  
Author(s):  
Mengke Wang ◽  
Jun Zhu ◽  
You Zi ◽  
Zheng-Guang Wu ◽  
Haiguo Hu ◽  
...  
Keyword(s):  
Surface Area ◽  
Biomedical Applications ◽  
Black Phosphorus ◽  
Large Surface Area ◽  
Two Dimensional ◽  
Next Generation

In recent years, two-dimensional (2D) black phosphorus (BP) has been widely applied in many fields, such as (opto)electronics, transistors, catalysis and biomedical applications due to its large surface area, tunable...

Research on metallic chalcogen-functionalized monolayer-puckered V2CX2 (X = S, Se, and Te) as promising Li-ion battery anode materials

2021 ◽  
Author(s):  
Chunmei Tang ◽  
Xiaoxu Wang ◽  
Shengli Zhang
Keyword(s):  
Surface Area ◽  
Anode Materials ◽  
Large Surface Area ◽  
Two Dimensional ◽  
Li Ion Batteries ◽  
Li Ion Battery ◽  
Li Ion ◽  
Battery Anode

Two-dimensional MXene nanomaterials are promising anode materials for Li-ion batteries (LIBs) due to their excellent conductivity, large surface area, and high Li capability.

scholarly journals Strategic use of nanotechnology in drug targeting and its consequences on human health: A focused review

2019 ◽  
Vol 11 (1) ◽  
pp. 38-54 ◽  
Author(s):  
Anand Maurya ◽  
Anurag Kumar Singh ◽  
Gaurav Mishra ◽  
Komal Kumari ◽  
Arati Rai ◽  
...  
Keyword(s):  
Human Health ◽  
Surface Area ◽  
Medical Diagnosis ◽  
Drug Targeting ◽  
Pharmaceutical Market ◽  
Large Surface Area ◽  
Mass Ratio ◽  
Disease Therapy ◽  
Significant Interest ◽  
Medical Benefits

Since the development of first lipid-based nanocarrier system, about 15% of the present pharmaceutical market uses nanomedicines to achieve medical benefits. Nanotechnology is an advanced area to meliorate the delivery of compounds for improved medical diagnosis and curing disease. Nanomedicines are gaining significant interest due to the ultra small size and large surface area to mass ratio. In this review, we discuss the potential of nanotechnology in delivering of active moieties for the disease therapy including their toxicity evidences. This communication will help the formulation scientists in understanding and exploring the new aspects of nanotechnology in the field of nanomedicine.

Synthesis of functional hollow WS2 particles with large surface area for Near-Infrared (NIR) triggered drug delivery

2021 ◽  
Vol 875 ◽  
pp. 160034
Author(s):  
Na Liu ◽  
Fan Fan ◽  
Wei Xu ◽  
Hao Zhang ◽  
Qi Zhou ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Surface Area ◽  
Near Infrared ◽  
Large Surface Area

scholarly journals Stretchable Electronic Devices: Design Criteria for Horseshoe and Spiral‐Based Interconnects for Highly Stretchable Electronic Devices (Adv. Funct. Mater. 7/2021)

2021 ◽  
Vol 31 (7) ◽  
pp. 2170048
Author(s):  
Nadeem Qaiser ◽  
Asrar Nabil Damdam ◽  
Sherjeel Munsif Khan ◽  
Saleh Bunaiyan ◽  
Muhammad Mustafa Hussain
Keyword(s):  
Electronic Devices ◽  
Design Criteria ◽  
Highly Stretchable

scholarly journals Topology optimized thermoelectric generator: a parametric study

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
John Mativo ◽  
Kevin Hallinan ◽  
Uduak George ◽  
Greg Reich ◽  
Robin Steininger
Keyword(s):  
Topology Optimization ◽  
Thermoelectric Generator ◽  
Volume Fraction ◽  
Power Conversion ◽  
Power Production ◽  
Power Reduction ◽  
Void Volume Fraction ◽  
Thermoelectric Generators ◽  
Maximal Power ◽  
Design Yield

Abstract Typical thermoelectric generator legs are brittle which limits their application in vibratory and shear environments. Research is conducted to develop compliant thermoelectric generators (TEGs) capable of converting thermal loads to power, while also supporting shear and vibratory loads. Mathematical structural, thermal, and power conversion models are developed. Topology optimization is employed to tailor the TEG design yield maximal power production while sustaining the applied shear and vibratory loads. As a specific example, results are presented for optimized TEG legs with a void volume fraction of 0.2 that achieve compliance shear displacement of 0.0636 (from a range of 0.0504 to 0.6079). In order to achieve the necessary compliance to support the load, the power reduction is reduced by 20% relative to similarly sized void free TEG legs.

Towards highly conducting bicarbazole redox polymer films with plateau-like conductivities

2020 ◽  
Vol 8 (43) ◽  
pp. 15393-15405
Author(s):  
Claudia Malacrida ◽  
Yushi Lu ◽  
Klaus Dirnberger ◽  
Sergio Gámez-Valenzuela ◽  
M. Carmen Ruiz Delgado ◽  
...  
Keyword(s):  
Polymer Films ◽  
Electronic Devices ◽  
Hole Transport ◽  
Chemical Doping ◽  
Redox Polymer ◽  
Hole Transport Layers ◽  
The Stability

Chemical doping of bicarbazole redox polymer films leads to plateau-conductivities up to 2 × 10−2 S cm−1. The stability due to crosslinking and the transparency make them e.g. suitable as hole-transport layers in organic opto-electronic devices.

Accelerating ion diffusion with unique three-dimensionally interconnected nanopores for self-membrane high-performance pseudocapacitors

Nanoscale ◽  
2017 ◽  
Vol 9 (46) ◽  
pp. 18311-18317 ◽  
Author(s):  
Yuan Gao ◽  
Yuanjing Lin ◽  
Zehua Peng ◽  
Qingfeng Zhou ◽  
Zhiyong Fan
Keyword(s):  
Aspect Ratio ◽  
Surface Area ◽  
Structural Stability ◽  
High Aspect Ratio ◽  
High Performance ◽  
Three Dimensional ◽  
Rate Capability ◽  
Large Surface Area ◽  
Nanoporous Structure ◽  
Ion Diffusion

Three-dimensional interconnected nanoporous structure (3-D INPOS) possesses high aspect ratio, large surface area, as well as good structural stability. Profiting from its unique interconnected architecture, the 3-D INPOS pseudocapacitor achieves a largely enhanced capacitance and rate capability.

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