Demonstration of wide spectrum transparent conductive composite films based on silver nanowires and graphene

Wang, Shengyong; Liu, Huan; Pan, Yongqiang; Bai, Minyu; Xie, Fei; Zhao, Jijie; Xue, Kaihao; Wen, Shuai; Chen, Peng

doi:10.1016/j.infrared.2022.104172

Cited by 4 publications

(4 citation statements)

References 29 publications

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“…Conductive composite films based on silver nanowires and graphene measured in infrared range demonstrate relative transmittance over 60% (absolute transmittance of 70%) and sheet resistance of 28 Ω Sq −1 . [ 21 ] The numerically calculated infrared transmittivities of TCEs implemented on high refractive index substrate are presented in Figure S7 (Supporting Information). The calculations reveal that TCEs based on ITO, AZO, FTO, metal plates, and grids reach the level of Fresnel transmittance when their sheet resistance exceeds 100 Ω Sq −1 .…”

Section: Resultsmentioning

confidence: 99%

“…This heightened response leads to increased absorption and reflection, and as a result the transmittivity of infrared TCEs is significantly lower [36][37][38] compared to TCEs used in the visible range. Recently, S. Wang et al [21] demonstrated record high infrared light transmittance and low sheet resistance using conductive composite films based on silver nanowires and graphene implemented on a BaF 2 substrate, achieving transmittance over 70% and sheet resistance of 28 Ω Sq −1 . However, there is a general lack of research on TCEs in the infrared region, despite their wide range of possible applications in devices for thermal imaging, free space communication, eye-safe LIDARs, and the detection of toxic gases-which in the wavelength range of 4 to 10 upmum have strong absorption lines.…”

Section: Introductionmentioning

confidence: 99%

“…Other alternatives include ultrathin metals, [ 8–11 ] conductive polymers, [ 12–14 ] carbon nanotubes, [ 15,16 ] graphene‐based layers, [ 17–21 ] nanowires, [ 22–25 ] dielectric‐metal‐dielectric structures, [ 26–31 ] and metal networks. [ 32,33 ] Of these alternatives, metal nanowires and dielectric‐metal‐dielectric structures are the most promising, as they exhibit low sheet resistance below 10 Ω Sq −1 and above 90% absolute transmittance.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Monolithic High Contrast Grating Integrated with Metal: Infrared Electrode with Exceptionally High Conductivity and Transmission

Ekielski,

Głowadzka,

Bogdanowicz

et al. 2023

Adv Funct Materials

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The design of transparent conductive electrodes (TCEs) for optoelectronic devices requires a trade‐off between high conductivity and transmittivity, limiting their efficiency. This paper demonstrates the best ever achieved TCEs with the novel approach to fabricating TCEs that effectively alleviates this trade‐off: a monolithic high contrast grating integrated with metal (metalMHCG). The metalMHCG enables higher electrical conductivity than other TCEs, while providing transmissive and antireflective properties. It focuses on infrared spectrum TCEs, which are essential for sensing, thermal imaging, and automotive applications. However, due to elevated free carrier absorption, they are much more demanding than TCEs for the visible spectrum. It demonstrates a record 75% absolute transmittiance of unpolarized light, resulting in a record 108% transmittance relative to plain GaAs substrate. It achieves even larger absolute transmittance of polarized light, reaching 92% or 133% relative transmittance. Despite the record high transmittance, the sheet resistance of the metalMHCG is the best ever reported, several times lower than any other TCE, ranging from 0.5 to 1 Ω Sq−1.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Monolithic High Contrast Grating Integrated with Metal: Infrared Electrode with Exceptionally High Conductivity and Transmission

Ekielski,

Głowadzka,

Bogdanowicz

et al. 2023

Adv Funct Materials

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“…However, AgNW-based TCFs exhibit some drawbacks including high surface roughness, high resistance between the AgNW junctions, and weak adhesion to various substrates. Furthermore, AgNW-based TCFs are easily oxidized when they are exposed to water or air, which results in a sharp increase in the sheet resistance [ 14 , 15 ].…”

Section: Introductionmentioning

confidence: 99%

Performance Enhancement of Silver Nanowire-Based Transparent Electrodes by Ultraviolet Irradiation

et al. 2022

Self Cite

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Silver nanowires (AgNWs) are used as transparent electrodes (TE) in many devices. However, the contact mode between the nanowires is the biggest reason why the sheet resistance of silver nanowires is limited. Here, simple and effective ultraviolet (UV) irradiation welding is chosen to solve this problem. The influence of the power density of the UV irradiation on welding of the silver nanowires is studied and the fixed irradiation time is chosen as one minute. The range of the UV (380 nm) irradiation power is chosen from 30 mW/cm2 to 150 mW/cm2. First of all, the transmittance of the silver nanowire film is not found to be affected by the UV welding (400–11,000 nm). The sheet resistance of the silver nanowires decreases to 73.9% at 60 mW/cm2 and increases to 127.6% at 120 mW/cm2. The investigations on the UV irradiation time reveal that the sheet resistance of the AgNWs decreases continuously when the UV irradiation time is varied from 0 to 3 min, and drops to 57.3% of the initial value at 3 min. From 3–6 min of the continuous irradiation time, the change of the sheet resistance is not obvious, which reflects the self-limiting and self-termination of AgNWs welding. By changing the wavelength of the UV irradiation from 350–400 nm, it is found that the welding effect is best when the UV wavelength is 380 nm. The average transmittance, square resistance, and the figure of merit of the welded AgNWs at 400–780 nm are 95.98%, 56.5 Ω/sq, and 117.42 × 10−4 Ω−1, respectively. The UV-welded AgNWs are also used in silicon-based photodetectors, and the quantum efficiency of the device is improved obviously.

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Stability of silver nanowire transparent conductive film and strategies for improvement

Gan,

Liu,

Yang

et al. 2024

Critical Reviews in Solid State and Materials Sciences

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Demonstration of wide spectrum transparent conductive composite films based on silver nanowires and graphene

Cited by 4 publications

References 29 publications

Monolithic High Contrast Grating Integrated with Metal: Infrared Electrode with Exceptionally High Conductivity and Transmission

Monolithic High Contrast Grating Integrated with Metal: Infrared Electrode with Exceptionally High Conductivity and Transmission

Performance Enhancement of Silver Nanowire-Based Transparent Electrodes by Ultraviolet Irradiation

Stability of silver nanowire transparent conductive film and strategies for improvement

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