Carbon nanotube-induced migration of silver nanowire networks into plastic substrates via Joule heating for high stability

Woo, Jong Seok; Kim, Byung Kuk; Kim, Ho Young; Lee, Geon-Woong; Park, Soo‐Young; Han, Joong Tark

doi:10.1039/c6ra17771a

Cited by 7 publications

(4 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A high achieved temperature could enlarge the applicable areas of the heater. The Ag heaters can achieve higher temperature and faster response and recovery time under relatively low applied voltages and have better performance than those based on AgNWs, PEDOT:PSS, graphene, and CNTs. ,,, Figure c,d show fron-side and back-side heating result images of FLIR with a 128 Ω resistor under 18 V applied voltage. It can be found that although a lower temperature is achieved at the back-side surface, the temperature distribution seems more uniform than that of the front-side surface.…”

Section: Resultsmentioning

confidence: 99%

A Novel Flexible Silver Heater Fabricated by a Solution-Based Polyimide Metalization and Inkjet-Printed Carbon Masking Technique

Zhang

Huang

Wan

et al. 2019

ACS Appl. Electron. Mater.

View full text Add to dashboard Cite

An easy-to-fabricate, high-performance, and ultrabendable heater is always essential for the development of flexible devices such as gas sensors. Currently, most of the flexible heaters involve vacuum facilities or special inkjet printers/inks, which leads to complex processes and high fabrication cost. In this work, an innovative polymeric metalization technique was developed on polyimide substrate: in addition to the tunable electrical properties, Ag thin films obtained through the low-temperature solution-based process, the so-called surface modification and ion exchange (SMIE) process, could provide enhanced interfacial adhesion and mechanical stability. With a carbon ink as a masking layer, generated by a common home-/office-use inkjet printer, more than 400 patterned flexible heaters can be batch-fabricated on an A4 size polyimide conveniently. The results indicate that the heaters exhibit good electrical properties as well as superior bending stabilities. For the heaters with dimension of 1 cm × 1 cm, under an applied voltage of 20 Vdc, the maximum temperature achieved is 300 °C. Both the response time and recovery time are less than 15 s. The heaters can bear more than 1200 times bending cycling with a relative resistance change ratio of 0.11%. The developed technology is compatible with current batch fabrication processes such as roll-to-roll and can be employed to develop flexible heaters with high mechanical stability in the future.

show abstract

Section: Resultsmentioning

confidence: 99%

A Novel Flexible Silver Heater Fabricated by a Solution-Based Polyimide Metalization and Inkjet-Printed Carbon Masking Technique

Zhang

Huang

Wan

et al. 2019

ACS Appl. Electron. Mater.

View full text Add to dashboard Cite

show abstract

“…The thermal process can be incompatible with many sensitive materials such as plastic substrates. Various additives to Ag NWs have been shown to effectively improve upon some of these shortcomings, including carbon nanotube and graphene, , precursors for the sol–gel synthesis of metal oxides, , conducting and insulating polymers, and physical-vapor-deposited metal oxides; however, compromises such as increased process complexity and deviations from Ag NWs’ optimal properties often accompany improvements, and a comprehensive solution has not been attainable. Consequently, a method that can simultaneously provide the functions of passivation, protection, surface homogeneity, gas-permeation barrier, and junction-fusing to the Ag NWs film while retaining its flexibility and processability will provide a major breakthrough to the development of the Ag NWs TCF technologies.…”

Section: Introductionmentioning

confidence: 99%

Fabrication, Mechanisms, and Properties of High-Performance Flexible Transparent Conductive Gas-Barrier Films Based on Ag Nanowires and Atomic Layer Deposition

Hsu

Lai

et al. 2019

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Thin films of Ag nanowires (NWs) offer many advantages as transparent electrodes for flexible electronics, but their applications are hindered by issues including poor stability/durability of Ag NWs, high processing temperatures, heterogeneity of surfaces, and lack of gas-barrier function. This study reports novel mechanisms through which a conductive Hf:ZnO (HZO) film by atomic layer deposition (ALD) can be integrated with a sprayed Ag NWs film to address the issues of Ag NWs. First, the ALD surface reactions can induce fusing of the Ag NWs into a connected network without the need for a thermal sintering process. Second, the ALD process can in situ functionalize the Ag NWs to yield defect-free (in terms of blocking gas permeation) coverage of the ALD HZO over the entire nanowire surfaces, which also enhances the ALD-induced fusing of Ag NWs. The composite HZO/Ag NWs films exhibit low sheet resistance (15 Ω sq–1), low water vapor transmission rate (WVTR) (5.1 × 10–6 g m–2 day–1), high optical transmission (92%), excellent flexibility (12.5 mm bending radius), high stability/durability (against an extensive set of degradation modes and photolithographic patterning processes), and low processing temperature (90 °C) and can be used in perovskite solar cells to obtain high power conversion efficiency (14.46%).

show abstract

“…Apart from their low sheet resistance, ≈10 Ω sq −1 , metallic nanowire‐based networks must be very long to minimize junction resistance and they should also be defect free to reach conductivity as close as the corresponding bulk value. Several groups have reported transparent thin‐film heaters based on metallic nanowires, ITO, CNTs and polymer film with composite materials, e.g., with Ag nanowires, etc. Most of these thin‐film heaters are very sensitive to deformation and the applied voltage renders them extremely unsuitable for demanding situations.…”

Section: Introductionmentioning

confidence: 99%

Transparent Conducting Electrodes from Conducting Polymer Nanofibers and Their Application as Thin‐Film Heaters

Düzyer

Sinha-Ray

et al. 2017

Macro Materials & Eng

View full text Add to dashboard Cite

Transparent conducting electrodes attract attention in relation to solar cells, touch panels, displays, e‐readers, and transparent heaters. In many cases, rarefied metal nets with optical transmittance of ≈90% and with minimal sheet resistance are sought after. Here, a mesh of conducting polymer nanofibers is developed as a transparent conducting electrode. A sheet resistance of 8.4 kΩ sq−1 with 84% optical transmittance is achieved with polyethylene oxide/poly(3,4‐ethylenedioxythiophene) polystyrene sulfonate (PEO/PEDOT:PSS) blended polymer nanofibers. This study also demonstrates that such nanofiber being deposited on a glass substrate can be used as a transparent film heater in relevant applications such as window heating or displays at harsh environments. Such a transparent heater is rated at 0.41 W in.−2 for 120 V. It is also capable of heating a substrate up to ≈70 °C in 4 min at 60 V from room temperature without any degeneration of nanofiber network, rendering itself as a practically useful transparent heater. The performance of the PEO/PEDOT:PSS nanofiber‐coated transparent glass heater is comparable to that of the relatively expensive indium tin oxide thin‐film heaters.

show abstract

Carbon nanotube-induced migration of silver nanowire networks into plastic substrates via Joule heating for high stability

Abstract: The hydrothermal and mechanical stability of transparent conducting films is a prerequisite for commercial applications in optoelectronic devices.

Cited by 7 publications

References 30 publications

A Novel Flexible Silver Heater Fabricated by a Solution-Based Polyimide Metalization and Inkjet-Printed Carbon Masking Technique

A Novel Flexible Silver Heater Fabricated by a Solution-Based Polyimide Metalization and Inkjet-Printed Carbon Masking Technique

Fabrication, Mechanisms, and Properties of High-Performance Flexible Transparent Conductive Gas-Barrier Films Based on Ag Nanowires and Atomic Layer Deposition

Transparent Conducting Electrodes from Conducting Polymer Nanofibers and Their Application as Thin‐Film Heaters

Contact Info

Product

Resources

About