Novel stretchable thermochromic transparent heaters designed for smart window defroster applications by spray coating silver nanowire

Veeramuthu, Loganathan; Chen, Bo‐Yu; Tsai, Cheng-Lun; Liang, Fang‐Cheng; Venkatesan, Manikandan; Jiang, Daihua; Chen, Chin‐Wen; Cai, Xingke; Kuo, Chi‐Ching

doi:10.1039/c9ra06508c

Cited by 51 publications

(43 citation statements)

References 41 publications

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“…For application as conformable electronics, it is worth mentioning that the devices do not necessarily need to have characteristics like ultra-high strain and high transmittance which are appealing for other applications as soft-robotics and smart-architecture. 21,[94][95][96] One of the most common methodology to prepare flexible conductive composite is to make use of percolation networks of metallic nanowires (NWs) or nanofibers (NFs) on flexible, biocompatible substrates. Compared to nanoparticles, the use of these nanostructures results in a lower percolation threshold and thus they influence to a smaller extent the mechanical properties of the matrix.…”

Section: Methodsmentioning

confidence: 99%

Conformable on-skin devices for thermo-electro-tactile stimulation: materials, design, and fabrication

2021

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Section: Methodsmentioning

confidence: 99%

Conformable on-skin devices for thermo-electro-tactile stimulation: materials, design, and fabrication

2021

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“…Many demo products have been fabricated, like defoggers/defrosters for car windows or side mirrors ( Figure a,b), made of patterned AgNWs, [ 232,233 ] AgNFs, [ 234 ] Cu grids [ 56 ] or Ni/Ag microgrids. [ 198 ] A demo motorcycle visor (Figure 16c) dip‐coated with PEDOT:PSS‐EG was fabricated and can be defrosted in a few seconds with a low voltage.…”

Section: Integration Of Transparent Heaters In Devicesmentioning

confidence: 99%

Transparent Heaters: A Review

Papanastasiou

Schultheiss

Muñoz‐Rojas

et al. 2020

Adv Funct Materials

187

191

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Transparent heaters (TH) have attracted intense attention from both scientific and industrial sectors due to the key role they play in many technologies, including smart windows, deicers, defoggers, displays, actuators, and sensors. While transparent conductive oxides have dominated the field for the past five decades, a new generation of THs based on nanomaterials has led to new paradigms in terms of applications and prospects in the past years. Here, the most recent developments and strategies to improve the properties, stability, and integration of these new THs are reviewed.

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“…Transparent heaters (THs) have been studied for multiple potential applications, including smart windows [1,2], defrosters [3,4], thermochromic displays [5,6], physical/ chemical sensors [7,8], and other advanced heat-generating systems [9][10][11]. High optical transparency and excellent electrical conductivity are two important factors for high-performance THs.…”

Section: Introductionmentioning

confidence: 99%

Copper micromesh-based lightweight transparent conductor with short response time for wearable heaters

Kim

2021

Micro and Nano Syst Lett

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Thickness-controlled transparent conducting films (TCFs) were fabricated by transfer printing a 100 nm thick Cu micromesh structure onto poly(vinyl alcohol) (PVA) substrates of different thicknesses (~ 50, ~ 80, and ~ 120 μm) to develop a lightweight transparent wearable heater with short response time. The Cu mesh-based TCF fabricated on a ~ 50 µm thick PVA substrate exhibited excellent optical and electrical properties with a light transmittance of 86.7% at 550 nm, sheet resistance of ~ 10.8 Ω/sq, and figure-of-merit of approximately 236, which are comparable to commercial indium tin oxide film-based transparent conductors. The remarkable flexibility of the Cu mesh-based TCF was demonstrated through cyclic mechanical bending tests. In addition, the Cu mesh-based TCF with ~ 50 μm thick PVA substrate demonstrated a fast Joule heating performance with a thermal response time of ~ 18.0 s and a ramping rate of ~ 3.0 ℃/s under a driving voltage of 2.5 V. Lastly, the reliable response and recovery characteristics of the Cu mesh/PVA film-based transparent heater were confirmed through the cyclic power test. We believe that the results of this study is useful in the development of flexible transparent heaters, including lightweight deicing/defogging films, wearable sensors/actuators, and medical thermotherapy pads.

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Novel stretchable thermochromic transparent heaters designed for smart window defroster applications by spray coating silver nanowire

Abstract: The as-designed heaters proved to be excellent candidates for employment in window defrosters, as they satisfy the essential prerequisites such as lower sheet resistance, high transparency, mechanical robustness and good stability to tensile strain.

Cited by 51 publications

References 41 publications

Conformable on-skin devices for thermo-electro-tactile stimulation: materials, design, and fabrication

Conformable on-skin devices for thermo-electro-tactile stimulation: materials, design, and fabrication

Transparent Heaters: A Review

Copper micromesh-based lightweight transparent conductor with short response time for wearable heaters

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