Effect of silver nanowire length in a broad range on optical and electrical properties as a transparent conductive film

Marus, Mikita; Hubarevich, Aliaksandr; Lim, R.J.; Huang, Hui; Smirnov, A.; Wang, Wanjun; Fan, Weijun; Sun, Xiao Wei

doi:10.1364/ome.7.001105

Cited by 29 publications

(28 citation statements)

References 44 publications

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“…[ 43 ] In addition, the diameter of AgNWs is also a critical parameter correlated to the transparency and sheet resistance of the electrode. According to the studies by Bergin et al [ 44 ] and Marus et al, [ 45 ] a larger AgNW diameter is needed to maximize the photocurrent generation in ST‐devices due to more scattered light from the larger surface area while decreasing optical transmission simultaneously. Therefore, as the geometry of AgNWs and the optoelectronic performance of networks are mutually, but nonsynergistically influenced, there exist trade‐offs between the transmission and efficiency when choosing the dimensions of AgNW to cater to the photovoltaics demands of ST‐OPVs.…”

Section: Resultsmentioning

confidence: 99%

“…It is found that these behaviors are in good agreement with other reports. [ 45,51,52 ] Compared with the reference samples, AgNW‐BM films exhibit the highest transparency at a given sheet resistance and lowest sheet resistance at a given transmittance. Moreover, the combination of AgNW‐BM and PEDOT:PSS film achieves a mean optical transmission of ≈80% over the visible light spectrum with sheet resistance less than 10 Ω □ −1 , which allows it to be used as a highly transparent conducting electrode.…”

Section: Resultsmentioning

confidence: 99%

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Novel Bimodal Silver Nanowire Network as Top Electrodes for Reproducible and High‐Efficiency Semitransparent Organic Photovoltaics

et al. 2020

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Semitransparent organic photovoltaics (ST-OPVs) provide a potentially facile route for some applications in building integrated photovoltaics. One of the challenges in developing large-scale, printable ST-OPVs is to address the need for highperformance and fully solution-processed top electrodes, allowing the replacement of the evaporated thin metallic films (Ag, Au, and Al). Silver nanowire (AgNW) is considered a promising candidate for the substitution due to its excellent transparency, conductivity, and solution processability. Herein, a novel bimodal AgNW (AgNW-BM) electrode is reported, comprising AgNWs of two different aspect ratios. It is shown that the AgNW-BM film achieves lower sheet resistance and higher visible transmittance than each monodisperse AgNW film, respectively. Furthermore, ST-OPVs based on PTB7-Th:IEICO-4F with AgNW-BM top electrodes are fabricated, which can obtain a maximum power conversion efficiency (PCE) of 7.49% with an average visible transmittance (AVT) of 33%. The ST-devices also demonstrate an enhanced reproducibility and excellent color-rendering index of 90. In addition, the bimodal top electrode is successfully implemented in the PM6:Y6 system with a higher PCE of 9.79% and with an AVT of 23%, demonstrating the universality for various semiconductor systems. Our work provides a simple strategy to realize fully solution-processed, highly efficient ST-OPVs.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Novel Bimodal Silver Nanowire Network as Top Electrodes for Reproducible and High‐Efficiency Semitransparent Organic Photovoltaics

et al. 2020

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“…Among them, silver nanowire (AgNW) networks have been the most intensively investigated because of their desirable optical and electrical performance, excellent flexibility, and straightforward fabrication techniques . Meanwhile, it has been reported that TEs based on ultralong AgNW networks show superior performance to commercially high‐grade ITO films since ultralong AgNWs can effectively increase the electrical conductivity without sacrificing optical transmittance . However, there are still technical challenges hindering the further development of AgNW networks in practical applications, including high contact resistance that requires special postdeposition treatment, poor reproducibility due to the random distribution of AgNWs, and relatively high fabrication expense for high‐aspect‐ratio AgNWs …”

Section: Introductionmentioning

confidence: 99%

“…First, fabricated metallic nanofibers can easily achieve an aspect ratio up to 10 5 because of the extremely long profile of electrospun polymer nanofibers; this aspect ratio is much larger than that of ultralong AgNWs (≈1000) . Therefore, MNFN‐TEs can provide improved electrical conductivity and optical transmittance . Meanwhile, compared to microscale metal grid TEs, the nanoscale diameter of metallic nanofibers can reduce the nonconductive gaps between metallic structures and generate a more uniform electrical field distribution for enhanced charge carrier injection and transportation, which is essential for many optoelectronic devices, such as organic light‐emitting diodes (OLEDs) and photovoltaic devices .…”

Section: Introductionmentioning

confidence: 99%

Scalable Fabrication of Metallic Nanofiber Network via Templated Electrodeposition for Flexible Electronics

Zhang

Cai

Liang

et al. 2019

Adv Funct Materials

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Metallic nanofiber networks (MNFNs) are very promising for next-generation flexible transparent electrodes (TEs) since they can retain outstanding optical and electrical properties during bending due to their ultralong and submicron profile. However, it is still challenging to achieve cost-effective and highthroughput fabrication of MNFNs with reliable and consistent performance. Here, a cost-effective method is reported to fabricate high-performance MNFN-TEs via templated electrodeposition and imprint transfer. The fabricated electrodeposition template has a trilayer structure of glass/indium tin oxide/SiO 2 with nanotrenches in the insulating SiO 2 that can be utilized for repeated electrodeposition of the MNFNs, which are then transferred to flexible substrates. The fabricated TEs exhibit excellent optical transmittance (>84%) and electrical conductivity (<0.9 Ω sq −1 ) and show desirable mechanical flexibility with a sheet resistance <2 Ω sq −1 under a bending radius of 3 mm. Meanwhile, the MNFN-TEs reproduced from the reusable template show consistent and reliable performance. Additionally, this template-based method can realize the direct patterning of MNFN-TEs with arbitrary conductive patterns by selective masking of the template. As a demonstration, a flexible dynamic electroluminescent display is fabricated using TEs made by this method, and the light-emitting pattern is observable from both sides.

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“…In recent years, people have become more and more inclined to use a conductive network composed of nanowires. Considering various issues, AgNWs have received extensive attention [6,7,8,9,13,14,15,16,17,18,19,20,21,22,23,24,25]. Due to the high conductivity and flexibility of AgNW networks, AgNWs have shown promise in high visual transparency and conductivity essential for optoelectronic applications, such as solar cells, radio frequency identification technology, organic light-emitting devices and so on [7,8,9,13,14,15,16,17].…”

Section: Introductionmentioning

confidence: 99%

Silver Nanowires from Sonication-Induced Scission

Wang

Yang

2019

Micromachines

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Silver nanowires (AgNWs) have great potential to be used in the flexible electronics industry for their applications in flexible, transparent conductors due to high conductivity and light reflectivity. Those applications always involve size which strongly affects the optical and electrical properties of AgNWs. AgNWs of mean diameter 70 nm and mean length 12.5 μm were achieved by the polyol solvothermal method. Sonication-induced scission was used to obtain the small size AgNWs. The relationship between the size of AgNWs and the ultrasonic time, ultrasonic power, and concentration of AgNWs were studied. The results show that the length of AgNWs gradually reduces with the increase of the ultrasonic time and ultrasonic power, and with the decrease of concentration of AgNWs. Meanwhile, there is an existence of a limiting length below which fragmentation of AgNWs no longer occurs. Further, the mechanics of sonication-induced scission for the fragmentation of AgNWs was discussed.

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Effect of silver nanowire length in a broad range on optical and electrical properties as a transparent conductive film

Cited by 29 publications

References 44 publications

Novel Bimodal Silver Nanowire Network as Top Electrodes for Reproducible and High‐Efficiency Semitransparent Organic Photovoltaics

Novel Bimodal Silver Nanowire Network as Top Electrodes for Reproducible and High‐Efficiency Semitransparent Organic Photovoltaics

Scalable Fabrication of Metallic Nanofiber Network via Templated Electrodeposition for Flexible Electronics

Silver Nanowires from Sonication-Induced Scission

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