Highly flexible and transparent film heaters based on polyimide films embedded with silver nanowires

Huang, Qijin; Shen, Wenfeng; Fang, Xingzhong; Chen, Guofei; Guo, Junchao; Xü, Wei; Tan, Ruiqin; Song, Weijie

doi:10.1039/c5ra06529a

Cited by 99 publications

(75 citation statements)

References 36 publications

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“…In this study, we use the latter technique that allows to fabricate large‐area transparent heaters. So far, transparent, flexible, stretchable, and even inkjet printed thin‐film heaters based on AgNWs and AgNW‐nanocomposites were studied in terms of transient thermal response, infrared properties, spatial heat distribution as well as for different carrier substrates such as poly(ethylene terephthalate) (PET), poly(ethylene naphthalate) (PEN), polyimide (PI), and glass .…”

Section: Introductionmentioning

confidence: 99%

Infrared, transient thermal, and electrical properties of silver nanowire thin films for transparent heaters and energy‐efficient coatings

Bobinger

Angeli

Colasanti

et al. 2016

Physica Status Solidi (a)

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n this study, we investigate the infrared and electrical propertiesas well as the thermal response of transparent silvernanowire (AgNW) based thin-ﬁlm heaters, when subjected toJoule heating. Controlling the number of layers and hence thedeposition time, our spray-coating technique allows to modulatethe thermal and electrical properties of the thin ﬁlms in a precisemanner. In addition, this technique enables the fabrication ofhomogeneous and large-area heaters, which, in terms of theirelectro-optical properties, nicely compare to the performances ofstate-of-the-art AgNW transparent electrodes. The thermal response and the electrical properties are accurately reproducedby a purposely developed physical model, which shows that thetemperature dependence of the AgNW ﬁlm resistance is loweredby a factor of 2 compared to bulk silver, independently of thenumber of deposited layers. Compared to uncoated glass,the emissivity decreases by 58% at a coverage rate of 58%. At thesame time, the AgNW ﬁlm can sustain a transparency as high as81.3%. Therefore, AgNW-based thin ﬁlms can be used as a low-emissivity coating, for e.g., energy-efﬁcient window glazingapplications. Finally, we accurately determine the fragmentationtemperature of AgNWs, which sets the ultimate limitation of usefor heating applications

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Section: Introductionmentioning

confidence: 99%

Infrared, transient thermal, and electrical properties of silver nanowire thin films for transparent heaters and energy‐efficient coatings

Bobinger

Angeli

Colasanti

et al. 2016

Physica Status Solidi (a)

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“…The nominal bending strain, ɛ, is defined as ɛ = d/R b , where d is the substrate thickness. 22 In the present case, ɛ is 0.01 for the CFH with T = 96%. The corresponding resistance change is expressed as ΔR s = (R s − R s0 )/ R s0 , where R s0 is the initial resistance and R s is the resistance after the bending test.…”

Section: Flexibility and Stretchabilitymentioning

confidence: 89%

“…Above all, the most critical issue is the limited power (P) that can be supplied to such materials. This severely restricts the maximum attainable temperature (T s ), since T s ∝ P. For example, the temperature ranges of graphene heaters, silver nanowire heaters, and heaters utilizing hybrid materials combining graphene and silver nanowires are 100-206°C, [19][20][21] 48-160°C, [22][23][24][25][26][27] and up to 225°C, 28,29 respectively.…”

Section: Introductionmentioning

confidence: 99%

Highly flexible, stretchable, patternable, transparent copper fiber heater on a complex 3D surface

Jo¹,

An²,

Lee³

et al. 2017

NPG Asia Mater

125

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A highly transparent, flexible, stretchable and patternable copper fiber heater was successfully fabricated for potential use in smart windows and other applications. The thickness of the electrospun polymer nanofibers was controlled during subsequent copper plating by adjusting the electroplating time, with minimal sacrifice in transparency. Self-fused junctions, formed via electroplating, significantly reduced the contact resistance between the intersecting copper-plated fibers. The heater temperature remained constant up to 300% sheet stretching. De-icing tests confirmed the potential applicability of such heaters in smart windows or vehicle defrosters. The copper-plated fibers may be transferred onto any surface with a complex 3D structure, as demonstrated by fabricating a heat-radiating Venus statue covered with the copper-plated fibers. The highest temperature of 328°C was achieved by using a transparent fibrous film having 90% transparency and 0.058 Ω sq − 1 sheet resistance.

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“…QJ Huang reported AZO/AgNWs/AZO deposited onto polyimide films, which displays excellent thermostability and mechanical flexibility with the low surface roughness ( R -rms < 8 nm). Huang et al [16, 17] reported silver nanowires successfully embedded in polyimide films to prepare highly flexible and transparent film heaters.…”

Section: Introductionmentioning

confidence: 99%

Stable and Controllable Synthesis of Silver Nanowires for Transparent Conducting Film

et al. 2017

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Silver nanowires without particles are synthesized by a solvothermal method at temperature 150 °C. Silver nanowires are prepared via a reducing agent of glycerol and a capping agent of polyvinylpyrrolidone (M w ≈ 1,300,000). Both of them can improve the purity of the as-prepared silver nanowires. With controllable shapes and sizes, silver nanowires are grown continuously up to 10–20 μm in length with 40–50 nm in diameter. To improve the yield of silver nanowires, the different concentrations of AgNO3 synthesis silver nanowires are discussed. The characterizations of the synthesized silver nanowires are analyzed by UV-visible absorption spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), and atomic force microscope (AFM), and silver nanowires are pumped on the cellulose membrane and heated stress on the PET. Then, the cellulose membrane is dissolved by the steam of acetone to prepare flexible transparent conducting thin film, which is detected 89.9 of transmittance and 58 Ω/□. Additionally, there is a close loop connected by the thin film, a blue LED, a pair of batteries, and a number of wires, to determinate directly the film if conductive or not.

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Highly flexible and transparent film heaters based on polyimide films embedded with silver nanowires

Abstract: Highly flexible AgNW/PI transparent film heaters with superior mechanical and thermal response behavior were fabricated using an all solution-coating method.

Cited by 99 publications

References 36 publications

Infrared, transient thermal, and electrical properties of silver nanowire thin films for transparent heaters and energy‐efficient coatings

Infrared, transient thermal, and electrical properties of silver nanowire thin films for transparent heaters and energy‐efficient coatings

Highly flexible, stretchable, patternable, transparent copper fiber heater on a complex 3D surface

Stable and Controllable Synthesis of Silver Nanowires for Transparent Conducting Film

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