Flexible and transparent silver nanowires/biopolymer film for high-efficient electromagnetic interference shielding

Wang, Gehuan; Hao, Lele; Zhang, Xindan; Tan, Shujuan; Zhou, Ming; Gu, Weihua; Ji, Guangbin

doi:10.1016/j.jcis.2021.08.190

Cited by 61 publications

(28 citation statements)

References 57 publications

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“…3 c and S3. As expected, the transmittance of single Ag NW films decreases with the increase in Ag NW loading density due to the enhancement of photons scattering and reflection [ 34 ]. The insets show the color change of GO suspension, and the color of it becomes darker after adding L-ascorbic acid.…”

Section: Resultsmentioning

confidence: 64%

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Multifunctional Integrated Transparent Film for Efficient Electromagnetic Protection

et al. 2022

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Silver nanowire (Ag NW) has been considered as the promising building block for the fabrication of transparent electromagnetic interference (EMI) shielding films. However, the practical application of Ag NW-based EMI shielding films has been restricted due to the unsatisfactory stability of Ag NW. Herein, we proposed a reduced graphene oxide (rGO) decorated Ag NW film, which realizes a seamless integration of optical transparency, highly efficient EMI shielding, reliable durability and stability. The Ag NW constructs a highly transparent and conductive network, and the rGO provides additional conductive path, showing a superior EMI shielding effectiveness (SE) of 33.62 dB at transmittance of 81.9%. In addition, the top rGO layer enables the hybrid film with reliable durability and chemical stability, which can maintain 96% and 90% EMI SE after 1000 times bending cycles at radius of 2 mm and exposure in air for 80 days. Furthermore, the rGO/Ag NW films also possess fast thermal response and heating stability, making them highly applicable in wearable devices. The synergy of Ag NW and rGO grants the hybrid EMI shielding film multiple desired functions and meanwhile overcomes the shortcomings of Ag NW. This work provides a reference for preparing multifunctional integrated transparent EMI shielding film.

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Section: Resultsmentioning

confidence: 64%

“…According to our previous work, ice crystals are generated on the surface of PET substrate below 0 °C, leading to unsatisfactory optical transmittance [ 34 ]. The electro-thermal ability of transparent EMI shielding films is expected to realize thermal regulation and anti-frozen.…”

Section: Resultsmentioning

confidence: 99%

Multifunctional Integrated Transparent Film for Efficient Electromagnetic Protection

et al. 2022

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“…In recent times, Masahiro Tokita et al 1 has compared the capacitance of nano-fibrous carbon electrodes with various graphitic structures. However, Gehuan Wang et al 2 has reported silver nanowires/biopolymer films as a next generation flexible optoelectronic devices. Nowadays, the rapid development in information technology with extensive applications of electrical and electronic devices has caused environmental pollution in the form of electromagnetic wave radiation.…”

Section: Introductionmentioning

confidence: 99%

CNFs from linseeds oil: a potential source of X-band microwave absorbers

Kshirsagar¹,

Dubey²,

Puri

et al. 2022

Mater. Adv.

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“…The PVP shell made the AgNWs prefer to interconnect with each other easily after being annealed at 150 °C for 1 h . As shown in Figures g and S4, the welded junctions between the AgNWs were formed due to the partial decomposition of PVP after thermal annealing, which contributes to the decreased contact resistance between NWs and provides efficient electron transfer by impeding interfacial slippage. − The nanoscale interlinked interface of AgNWs significantly reduced the interfacial resistance and promoted the EMI shielding performance of the composite film. ,, It is well known that the metal network structure can allow light to pass through the mesh, making the AgNWs/TCP film possess high transparency. , Additionally, a transparent PDMS layer was coated on the AgNW conductive network and the NWs were encapsulated between the TCP and PDMS layers tightly (Figures e and S5), preventing the AgNWs from sliding or falling . The digital photograph in Figure a shows the excellent optical transmittance of the PDMS/AgNWs/TCP composite film with a typical sandwiched structure.…”

Section: Resultsmentioning

confidence: 99%

“…28−30 The nanoscale interlinked interface of AgNWs significantly reduced the interfacial resistance and promoted the EMI shielding performance of the composite film. 28,31,32 It is well known that the metal network structure can allow light to pass through the mesh, making the AgNWs/TCP film possess high transparency. 33,34 Additionally, a transparent PDMS layer was coated on the AgNW conductive network and the NWs were encapsulated between the TCP and PDMS layers tightly (Figures 1e and S5), preventing the AgNWs from sliding or falling.…”

Section: Fabrication and Morphologymentioning

confidence: 99%

Flexible, Transparent, and Hazy Composite Cellulosic Film with Interconnected Silver Nanowire Networks for EMI Shielding and Joule Heating

Zhu

Yan

et al. 2022

ACS Appl. Mater. Interfaces

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An optical transparent and hazy film with admirable flexibility, electromagnetic interference (EMI) shielding, and Joule heating performance meeting the requirements of optoelectronic devices is significantly desirable. Herein, a cellulose paper was infiltrated by epoxy resin to fabricate a transparent cellulose paper (TCP) with high transparency, optical haze, and favorable flexibility, owing to effective light scattering and mechanical enhancement of the cellulose network. Moreover, a highly connected silver nanowire (AgNW) network was constructed on the TCP substrate by the spray-coating method and appropriate thermal annealing technique to realize high electrical conductivity and favorable optical transmittance of the composite film at the same time, followed by coating of a polydimethylsiloxane (PDMS) layer for protection of the AgNW network. The obtained PDMS/AgNWs/TCP composite film features considerable optical transmittance (up to 86.8%) and haze (up to 97.7%), while satisfactory EMI shielding effectiveness (SE) (up to 39.1 dB, 8.2–12.4 GHz) as well as strong mechanical strength (higher than 41 MPa) were achieved. The coated PDMS layer prevented the AgNW network from falling off and ensured the long-term stability of the PDMS/AgNWs/TCP composite film under deformations. In addition, the multifunctional PDMS/AgNWs/TCP composite film also exhibited excellent Joule heating performance with low supplied voltages, rapid response, and sufficient stability. This work demonstrates a novel pathway to improve the performance of multifunctional transparent composite films for future advanced optoelectronic devices.

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Flexible and transparent silver nanowires/biopolymer film for high-efficient electromagnetic interference shielding

Cited by 61 publications

References 57 publications

Multifunctional Integrated Transparent Film for Efficient Electromagnetic Protection

Multifunctional Integrated Transparent Film for Efficient Electromagnetic Protection

CNFs from linseeds oil: a potential source of X-band microwave absorbers

Flexible, Transparent, and Hazy Composite Cellulosic Film with Interconnected Silver Nanowire Networks for EMI Shielding and Joule Heating

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