Dry-transferred single-walled carbon nanotube thin films for flexible and transparent heaters

Zhao, Zhang; Dong, Haohao; Liao, Yongping; Ding, Er‐Xiong; Lv, Lihua; Li, Hong; Yan, Jun; Kauppinen, Esko I.

doi:10.1016/j.surfin.2022.101992

Cited by 6 publications

(7 citation statements)

References 48 publications

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“…Of note is the tendency of the hybrid papers presented in this work to achieve higher values of Δ Τ in response to lower values of V DC than that of previously reported GRM-based heaters. For instance, Δ Τ = 100 °C, V DC = 15 V, Δ Τ = 130 °C, V DC = 8 V, Δ Τ = 80 °C, V DC = 7 V, Δ Τ = 70 °C, V DC = 15 V, and Δ Τ = 150 °C, V DC = 10 V are some characteristic examples of the performance of similar heating elements found in the literature.…”

Section: Resultsmentioning

confidence: 89%

“…Figure c–e contains IR thermographs obtained via the thermal imaging method on a MWCNT_GNP_20 sample after it achieved steady state under V DC = 3 V, V DC = 4 V, and V DC = 5 V, respectively. Apart from the anticipated behavior of film edges remaining cooler than the rest of the sample due to higher heat dissipation there, the films show a slight shift of the distribution toward the top edge of the film as heating of this region of upright orientated samples is enhanced by convection. Nonetheless, the widest area of the sample maintains a uniform distribution with point values from the IR thermal imager software corresponding well to measurements recorded using the thermocouple in contact with the center of each film.…”

Section: Resultsmentioning

confidence: 90%

“…Composite resistive heaters exhibit low heating rates or high response times as a trade-off for mechanical robustness. , The thermal resistance at the GRM/polymer interface and the dielectric nature of the polymer matrix result in accordingly longer electrothermal response times and lower steady-state temperatures at corresponding values of V DC. This is demonstrated in the studies of Zhou et al on composite heating elements that achieve a steady-state Δ Τ of 100 °C at 5 V for Δ t within the order of ∼100 s and of Zhan et al on a GRM-containing rubber heater requiring 20 s to reach a plateau of 50 °C at 15 V. Ultrathin-film GRM heaters exhibit similarly sub-optimal working parameters while introducing the requirement for a substrate, as a trade-off for transparency . On the other hand, CNT and CNT/GRM-based paper-like films have relatively low resistance and are expected to exhibit smaller response times for higher Δ T at smaller voltages.…”

Section: Introductionmentioning

confidence: 99%

“…This is demonstrated in the studies of Zhou et al 36 on composite heating elements that achieve a steady-state ΔΤ of 100 °C at 5 V for Δt within the order of ∼100 s and of Zhan et al 13 on a GRM-containing rubber heater requiring 20 s to reach a plateau of 50 °C at 15 V. Ultrathin-film GRM heaters exhibit similarly sub-optimal working parameters while introducing the requirement for a substrate, as a trade-off for transparency. 37 On the other hand, CNT and CNT/GRM-based paper-like films have relatively low resistance and are expected to exhibit smaller response times for higher ΔT at smaller voltages. This kind of performance was demonstrated by Guo et al 38 with rGO papers achieving a ΔT of 180 °C at 8 V in a few seconds.…”

Section: Introductionmentioning

confidence: 99%

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Rapid Resistive Heating in Graphene/Carbon Nanotube Hybrid Films for De-icing Applications

Kostaras

Pavlou

Koutroumanis

et al. 2023

ACS Appl. Nano Mater.

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Paper-like hybrid films based on carbon nanotubes (CNTs) are considered as favorable materials for electromagnetic interference shielding, energy storage, water treatment, and other contemporary high-performance applications due to their unique combination of excellent physical properties, multifunctional capabilities, and ease of fabrication. The present work reports the development, mechanical, electrical, and thermal characterization of multiwalled CNTs-based paper-like networks supporting a wide variety of two-dimensional graphene related materials (2D GRMs), in the absence of a matrix, for rapid de-icing applications. A multitude of hybrid CNT/GRM papers were produced, using graphene oxide (GO), chemically reduced GO, thermally reduced GO, and graphene nanoplatelets at weight fractions ranging from 0 up to 100 wt %. The mechanical response of the papers under uniaxial tension revealed that their toughness was dependent on both the 2D GRM type and nanotube modification method, while the materials exhibited a favorable combination of multifunctional behavior and mechanical robustness. The latter was evidenced by high values of Young's modulus of up to 13 GPa, an ultimate strength of up to 120 MPa, and a fracture energy of up to 1.84 MJ/m 3 . High values of electrical conductivity of up to ca. 12,500 S/m were coupled with dramatically fast heating responses to temperatures above 300 °C due to the Joule heating effect, which reached unprecedented rates of 355 °C/s and brought forward an impressive potential of the materials for electrothermal applications. In particular, the observed unique combination of low power draw, up to 16 W, high heating power densities of ca. 40,000 W/m 2 , and small mass renders the films ideal candidates for de-icing applications with a negligible weight burden on critical surfaces.

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Section: Resultsmentioning

confidence: 89%

Section: Resultsmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Rapid Resistive Heating in Graphene/Carbon Nanotube Hybrid Films for De-icing Applications

Kostaras

Pavlou

Koutroumanis

et al. 2023

ACS Appl. Nano Mater.

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“…The SWCNT film thickness was controlled by varying the collection time, and the transmittance and sheet resistance were determined (Figure 3e). [ 91 ] The transmittance data showed that while the p ‐doping effect increased the transmittance marginally, the difference was insignificant in both T = 70% and 90% cases (Figure 3f). Both transparency and conductivity determine the performance of TCEs.…”

Section: Resultsmentioning

confidence: 99%

Highly Transparent and Mechanically Robust Energy‐harvestable Piezocomposite with Embedded 1D P(VDF‐TrFE) Nanofibers and Single‐walled Carbon Nanotubes

Kim

Lee

Nam

et al. 2023

Adv Funct Materials

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Herein, highly transparent, flexible, and ultrathin piezocomposite, in which electrospun poly(vinylidene fluoride-co-trifluoroethylene) [P(VDF-TrFE)] nanofibers (NFs) and aerosol-synthesized single-walled carbon nanotubes (SWCNTs) are embedded in elastomer matrix, is fabricated. The P(VDF-TrFE) NF mat is exploited as a piezoelectric layer of the piezocomposite while the SWCNT film is applied as a transparent conductive electrode thereof. The use of these 1D nanomaterials allows the piezocomposite not only to be high transparency along with low diffusion of light (i.e., haze factor) but also to exhibit enhanced mechanical properties. In addition, the coupling effect of piezo-and flexoelectricity exhibited from the electrospun NFs and the aciddoping effect conducted on the SWCNTs facilitates a significant improvement in kinetic energy-harvesting performance, leading to a maximum output voltage of 26.8 V. Moreover, electrospinning and aerosol chemical vapor deposition methods employed here are facile, scalable, and cost-effective, thus are expected to accelerate the development of industrially feasible nextgeneration wearable electronics.

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Advancement in Carbon Nanotubes Optoelectronic Devices for Terahertz and Infrared Applications

Wang,

Sun,

Zhang

et al. 2024

Adv Elect Materials

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Benefiting from the outstanding optical, thermal, electrical, and mechanical properties, carbon nanotubes (CNTs) hold significant potential in the fields of materials, physics, chemistry, biology, as well as emerging disciplines such as electronics and optoelectronics. This paper provides a comprehensive review of the latest developments of CNTs optoelectronic devices operating in the terahertz (THz) and infrared (IR) wave range. At the beginning of this review, the unique structural characteristics of CNTs are introduced, overviewing their fundamental electronic structure, and emphasizing their impact on optoelectronics behavior. Further, on various synthesis techniques are discussion employed for the growth of single nanotube and the preparation of CNTs films. The penultimate section, the optical properties of CNTs are analyzed within the THz and IR spectral region and overview the application of THz time‐domain spectroscopy in extracting key material parameters of CNTs, and further discuss the theoretical models describing THz conductivity in CNTs. In the end, the most promising CNTs‐based device concepts are highlighted for sources, detectors, modulators, absorbers, and sensors within in THz and IR frequency band. This comprehensive review provides a valuable insight into the utilization of CNTs across various aspects of THz and IR optoelectronic devices.

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Dry-transferred single-walled carbon nanotube thin films for flexible and transparent heaters

Cited by 6 publications

References 48 publications

Rapid Resistive Heating in Graphene/Carbon Nanotube Hybrid Films for De-icing Applications

Rapid Resistive Heating in Graphene/Carbon Nanotube Hybrid Films for De-icing Applications

Highly Transparent and Mechanically Robust Energy‐harvestable Piezocomposite with Embedded 1D P(VDF‐TrFE) Nanofibers and Single‐walled Carbon Nanotubes

Advancement in Carbon Nanotubes Optoelectronic Devices for Terahertz and Infrared Applications

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