Electrothermal Performance of Heaters Based on Laser-Induced Graphene on Aramid Fabric

Naseri, Iman; Ziaee, Morteza; Nilsson, Zach N.; Lustig, Danielle; Yourdkhani, Mostafa

doi:10.1021/acsomega.1c06572

Cited by 23 publications

(19 citation statements)

References 39 publications

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“…is the heat conduction distance. The thickness of the substrate is the key (b) laser-induced method [22], and (c) ultrafast laser ablation method [23]. Reprinted with permission from MDPI, ACS, and ELSEVIER.…”

Section: Heat Transfer Modelsmentioning

confidence: 99%

“… Structures of microheaters based on graphene fabricated with ( a ) inkjet-printed method [ 21 ], ( b ) laser-induced method [ 22 ], and ( c ) ultrafast laser ablation method [ 23 ]. Reprinted with permission from MDPI, ACS, and ELSEVIER.…”

Section: Figurementioning

confidence: 99%

“…Recently, with the development of flexible electronics, low power consumption and fast response microheater are desired in many areas [ 6 , 19 ]. Because of the unique electrical and thermal conductivity, the graphene-based electrothermal heater has shown the properties of fast response, flexibility, and high-efficiency energy conversion [ 20 , 21 , 22 , 23 ]. Graphene-based typical structures fabricated with different methods are shown in Figure 1 .…”

Section: Introductionmentioning

confidence: 99%

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Design and Thermal Analysis of Flexible Microheaters

Ruan

Chen

et al. 2022

Micromachines

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With the development of flexible electronics, flexible microheaters have been applied in many areas. Low power consumption and fast response microheaters have attracted much attention. In this work, systematic thermal and mechanical analyses were conducted for a kind of flexible microheater with two different wire structures. The microheater consisted of polyethylene terephthalate (PET) substrate and copper electric wire with graphene thin film as the middle layer. The steady-state average temperature and heating efficiency for the two structures were compared and it was shown that the S-shaped wire structure was better for voltage-controlled microheater other than circular-shaped structure. In addition, the maximum thermal stress for both structures was from the boundary of microheaters, which indicated that not only the wire structure but also the shape of micro heaters should be considered to reduce the damage caused by thermal stress. The influence resulting from the thickness of graphene thin film also has been discussed. In all, the heating efficiency for flexible microheaters can be up to 135 °C/W. With the proposed PID voltage control system, the response time for the designed microheater was less than 10 s. Moreover, a feasible fabrication process flow for these proposed structures combing thermal analysis results in this work can provide some clues for flexible microheaters design and fabrication in other application areas.

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Section: Heat Transfer Modelsmentioning

confidence: 99%

Section: Figurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Design and Thermal Analysis of Flexible Microheaters

Ruan

Chen

et al. 2022

Micromachines

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“…Recently, owing to graphene's advantages such as flexibility, high‐electron conductivity, transparency, and mechanical robustness, it has been extensively used in variety of new functional materials especially for the applications such as defrosters and defoggers, anti‐icing, vehicle windows, photothermal materials, interfacial heating devices and so on 27 . Some of the recent reports on graphene based joule heaters explain the heating efficiency of the graphene‐polymer system considering the highest temperature reached under specific voltage and input electrical energy 28,29 . It has been suggested that decreasing the resistance of graphene‐polymer composites/films is the key factor in enhancing the joule heating efficiency.…”

Section: Introductionmentioning

confidence: 99%

“…27 Some of the recent reports on graphene based joule heaters explain the heating efficiency of the graphene-polymer system considering the highest temperature reached under specific voltage and input electrical energy. 28,29 It has been suggested that decreasing the resistance of graphene-polymer composites/films is the key factor in enhancing the joule heating efficiency. PVDF due to its properties such as ease of solubility, film forming ability, chemical resistance and thermal stability up to 170 C, it is one of the best polymer matrices to host the graphene sheets through dipole-dipole interactions for the fabrication of flexible self-heating films or composites.…”

Section: Introductionmentioning

confidence: 99%

Enhanced mechanical properties and self‐heating performance of few‐layer graphene‐poly vinylidene fluoride based nanocomposites

Dayananda

Makari²,

Sreepad

2022

Polymers for Advanced Techs

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The development of a lower voltage induced high‐performance self‐heating nanocomposite materials for jole‐heating applications has been an intense challenge. Here in, we report a poly vinylidene fluoride (PVDF)/few layer graphene (FLG) based high‐performance self‐heating nanocomposites fabricated via facile solution casting method. The as fabricated PVDF‐FLG nanocomposites were tested by various characterization techniques such as X‐ray diffraction, infrared spectroscopy, Raman spectroscopy, and field emission‐scanning electron microscopy. Mechanical and electrothermal properties were investigated by universal testing machine and IR thermography. Use of increasing content of FLG from 4 to 16 wt%, as an electrically and thermally conductive filler significantly enhanced the electrical conductivity, mechanical properties, and joule heating efficiency of the nanocomposites. The conductivity of PVDF‐FLG nanocomposites increased from 0.022 S/cm to 0.815 S/cm and tensile stress improved from 27.1 MPa to 48.6 MPa with increase of FLG content from 4 wt% to 16 wt% respectively. As revealed by the IR thermography results, the joule heating effect of the nanocomposites was dominated by applied voltage and FLG content of the nanocomposites. The temperature of the nanocomposite with the highest FLG content that is, PVDF‐FLG 16 exhibited significant increase in temperature from 38.6 to 155°C °C with increase of applied voltage from 4 to 16 V respectively. Therefore, these self‐heating PVDF‐FLG nanocomposites have the great potential to be used in various joule heating applications owing to their efficient heating with low‐power consumption.

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High‐Performance Electrothermal Film Based on Laser‐Induced Graphene

et al. 2022

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The flexible heaters have attracted growing interest due to their wide applications including biosensors, [1,2] gas sensors, [3] defoggers, [4] and microfluidics. [5] Generally, these electrothermal film heaters contain electrically conductive layers that operate under the principle of Joule heating. An excellent electrothermal heater requires not only fast response time, stable working temperature, and uniform temperature distribution but also flexibility, arbitrary shape, biocompatibility, and cost-effectiveness. [6] Much effort has been devoted to studying the indium tin oxide (ITO)-based heater due to its optical transparency, mechanical strength, and conductivity. [7] However, the poor ductility and fragility, long response time, and complex manufacturing processes limited its flexible usage. [8,9] Ceramic heaters were also widely investigated; one problem is that they do not work well for people with breathing problems. During the past few decades, metal nanowires (MNWs) such as silver nanowires (AgNWs), copper nanowires (CuNWs), and gold nanowires (AuNWs), have been investigated as alternative materials, due to there are many strategies that can fabricate their networks by simple drop casting, spin coating, and inkjet printing. [10][11][12][13] Nevertheless, the MNWsbased heaters may universally suffer from the exorbitant price of raw materials, [14] the potential presence of "super-Joule" heating hotspots induces local degradation, [15] relative low stability under electrical and/or thermal loading conditions, [16] and poor adhesion to substrates. [17] Moreover, the mentioned examples are based on the deposition of the self-heating layer on a substrate, which means that additional posting processes such as drying, curing, or sintering are needed. [18,19] Consequently, novel materials-based heating elements and strategies are highly required to achieve high-performance electrothermal heaters with a simple process and integration.Recently, carbon nanomaterials such as graphene have attracted much attention as heating elements due to their excellent electrical conductivity, mechanical strength, thermal properties, and biocompatibility. [20][21][22] Graphene-based heaters fabricated by chemical vapor deposition, [23] thermally reduced graphene oxide, [24] chemical reduced graphene oxide, [25] laser reduced graphene oxide, and [26] laser-induced graphene (LIG) from polymers [27] have been reported. Among them, LIG from polymers offers the idea of directly converting certain types of polyimides into graphene/graphite structures via photothermal or photochemical effects under ambient conditions. Due to the high-efficiency, low-cost, custom-designed pattern, scalable process, and one-step procedure without the transferring processes, this straightforward method of synthesizing LIG becomes a promising fabrication strategy for sensors, heaters, actuators, electromagnetic shielding, and smart devices. [6,21,[28][29][30] For LIG-based heaters, various investigations have been conducted, for example, Chen et al. propo...

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Electrothermal Performance of Heaters Based on Laser-Induced Graphene on Aramid Fabric

Cited by 23 publications

References 39 publications

Design and Thermal Analysis of Flexible Microheaters

Design and Thermal Analysis of Flexible Microheaters

Enhanced mechanical properties and self‐heating performance of few‐layer graphene‐poly vinylidene fluoride based nanocomposites

High‐Performance Electrothermal Film Based on Laser‐Induced Graphene

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