Optical properties of conductive silver-nanowire films with different nanowire lengths

Yu, Xiaoming; Xuan, Yi; Zhang, Jianjun; Chen, Liqiao; Long, Yunqian; Zhang, Dekun

doi:10.1007/s12274-017-1583-6

Cited by 24 publications

(9 citation statements)

References 35 publications

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“…[ 41 ] According to the percolation theory, the NW length can strongly affect the electrical and optical properties of a AgNW network. [ 42–44 ] For the same network density, the longer the NWs, the higher the electric conductivity.…”

Section: Resultsmentioning

confidence: 99%

Recycling of Nanowire Percolation Network for Sustainable Soft Electronics

Liu

Wang

Zhu

2021

Adv Elect Materials

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There is an increasing demand for eco‐friendly and sustainable electronics, where recycling of functional materials is the key. Soft electronics have received much attention recently, however, their recycling has been challenging. Here a strategy is reported to recycle silver nanowire (AgNW) percolation network to achieve sustainable soft electronics. The effect of working solvent and ultrasonication time on the morphology and electrical properties of the recycled AgNW network is investigated. Using the selected working solvent with low surface tension (isopropanol) and optimal ultrasonication time (20 s), the AgNW network film can be recycled multiple times (four times in this work) without significant morphology changes and performance degradation. A transient epidermal sensor patch using AgNW as electrodes and a water‐soluble polymer substrate is fabricated and fully recycled. On‐body test of the epidermal sensor patch fabricated by recycled AgNWs demonstrates a working example for the recycling concept of AgNWs. The recycling concept can be extended to other nanomaterials in the form of percolation network.

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Section: Resultsmentioning

confidence: 99%

Recycling of Nanowire Percolation Network for Sustainable Soft Electronics

Liu

Wang

Zhu

2021

Adv Elect Materials

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“…The more AgNWs, the more conductive paths are easily formed, which promotes conductivity. However, when the conductive paths in the coating are well formed, the increase of the number of AgNWs coating layers only slightly reduces contact resistance [11,17]. As the conductive material, AgNWs are likely easy to form conductive networks by overlapping each other due to the two-dimensional wire structure.…”

Section: Resultsmentioning

confidence: 99%

“…When the concentration of AgNWs ink reduces to 2.65 mg·mL −1 , the sheet resistance of AgNW coating increases to 334.90 Ω·sq −1 . The more AgNWs that are are added to a coating achieved percolation, the more effective conductive paths are formed, therefore the conductivity of the AgNWs coating will be improved [11,15,16,17,18].…”

Section: Resultsmentioning

confidence: 99%

“…The properties of silver nanostructures are closely related to morphology and size of AgNWs [17,18,19,20]. Constructing uniformly connected networks of AgNWs with property size is critical for improving the conductivity of electrodes composed of AgNWs and maximizing the potential of AgNWs networks [16,17,18,19,20,21]. However, the preparation of AgNWs with a controllable structure has always been a difficult problem.…”

Section: Introductionmentioning

confidence: 99%

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Silver Nanowires Inks for Flexible Circuit on Photographic Paper Substrate

Yang

Wang

et al. 2018

Micromachines

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Silver nanowires (AgNWs) have inspired many research interests due to their better properties in optical, electric, and flexible applications. One such exploitable use is as the electrical conductive fillers for print electronics. In this paper, AgNWs with mean a diameter of 80 nm and mean length of 13.49 μm were synthesized using the polyol solvothermal method. A sonication-induced scission process was used to obtain AgNWs with a length range of 7.64–11.21 μm. Further AgNWs inks were prepared with the as-synthesized AgNWs as conductive fillers in anhydrous ethanol. The conductive inks were coated on resin coated photographic paper substrate using the knife coating process and dried at room temperature. The effects of the number of layers of AgNWs coating, the concentration of AgNWs, and the length of AgNWs on the microstructure and electrical properties of samples were investigated by scanning electron microscopy and using the four-point probe method. The results show that the conductivity of the AgNWs coating increases with the increase in the number of layers in the AgNWs coating, concentration and length of the AgNWs.

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“…The length of AgNW is a crucial parameter to consider while designing ultraviolet TCE . Although the light scattering of short AgNW (length = 1–20 µm) was larger than that of long AgNW (length = 5–50 µm), the excessive light absorption of short AgNW in the range of 300–400 nm hinders its application as ultraviolet TCE …”

Section: Performance Comparison Of Different Tcesmentioning

confidence: 99%

Low Temperature Fabrication of Transparent Conductive Electrode With High Ultraviolet Transmittance Down to Wavelength of 250 nm

Safaei

Rosli

Noh

et al. 2018

Physica Rapid Research Ltrs

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Indium tin oxide (ITO) is a broadly deployed transparent conductive electrode (TCE) with various applications in solar energy harvesting and optoelectronics. However, the low transmittance of ITO in the ultraviolet range has motivated researchers to opt for alternative materials as TCE. In this paper, the fabrication of a hybrid TCE made up of silver nanowire (AgNW) and peroxo-constructed amorphous strontium stannate (pcaSS) is reported, employing facile spin coating solution-processed method at 150 C. The fabricated TCE demonstrated low sheet resistance of 32.8 Ω sq À1 and high transmittance of 88.2% at 550 nm. Furthermore, benefitting from the ultrahigh band gap of as-synthesized pcaSS (4.5 eV), this TCE maintained its high transmittance (above 80%) inside ultraviolet range down to wavelength of 250 nm. This research contributes to the fabrication of more efficient solar energy and ultraviolet optoelectronic devices.Indium tin oxide (ITO) has been commercialized as a transparent conductive electrode (TCE) with various applications in solar cells, LEDs, and touch screens, to name a few. Nevertheless, the scarcity of indium has necessitated the replacement of ITO with alternative thin films. [1,2] Furthermore, the low transmittance of ITO within ultraviolet region restricts its application in ultraviolet optoelectronics due to inter-band absorption and light scattering by free electrons. [3,4] Numerous alternatives for ITO have proved propitious, including carbonaceous materials, [5][6][7] aluminum doped zinc oxide (AZO), [8,9] fluorine doped tin oxide (FTO), [10,11] and metal nanowire network. [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27] Compared with the aforementioned conductive materials, the higher transmittance of metal nanowires into deep-ultraviolet (%200 nm) has motivated further research into the fabrication of ultraviolettransparent TCE for various optoelectronic applications. [18] In comparison with their gold and copper counterparts, silver nanowire (AgNW) has obtained the attention of numerous research groups due to its lower cost and higher physiochemical stability. [17][18][19][20][21][22][23][24][25][26][27] Although pristine AgNW demonstrated a remarkable transmittance from near-infrared down to deep-ultraviolet, [18] its high junction resistance, resulting from poor interconnections of nanowire networks, has been addressed by several researchers. [18][19][20][21][22][23][24][25][26][27] This issue was resolved by the deposition of transparent conductive materials to fill the pores and empty spaces within nanowire networks to enhance their conductivity. In regards to the physical instability of AgNW at 200 C, [17,20] numerous low temperaturebased techniques were contrived such as electron-beam evaporation, [18] atomic layer deposition, [19] sputtering, [20][21][22] and solution-processed deposition for coating metal oxides and/or conductive polymers on AgNW. [23][24][25][26][27] Diverse metal oxides were deposited on AgNW, including ZnMgO, [19] AZO, [21] indium doped zinc oxi...

show abstract

Optical properties of conductive silver-nanowire films with different nanowire lengths

Cited by 24 publications

References 35 publications

Recycling of Nanowire Percolation Network for Sustainable Soft Electronics

Recycling of Nanowire Percolation Network for Sustainable Soft Electronics

Silver Nanowires Inks for Flexible Circuit on Photographic Paper Substrate

Low Temperature Fabrication of Transparent Conductive Electrode With High Ultraviolet Transmittance Down to Wavelength of 250 nm

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