Transparent Metal Nanowire Thin Films Prepared in Mesostructured Templates

Azulai, Daniel; Belenkova, Tatyana Levi; Gilon, Hagit; Barkay, Zahava; Markovich, Gil

doi:10.1021/nl902458j

Cited by 147 publications

(151 citation statements)

References 21 publications

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“…Among these materials, AgNW electrodes show excellent electrical conductivity comparable to that of metallic oxides [12][13][14][15][16][17][18][19][20][21][22][23][24][25]. Moreover, since AgNWs are able to be coated onto flexible substrates by cost-effective and scalable roll-to-roll manufacturing, a variety of electrical devices deposited on AgNW transparent electrodes have been reported including organic solar cells [12,18,19,23], solid-state dye-sensitized solar cells [24], OLEDs [17], polymer light emitting diodes [21], and touch screens [22].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of silver nanowire transparent electrodes at room temperature

et al. 2011

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Silver nanowires (AgNWs) surrounded by insulating poly(vinylpyrrolidone) have been synthesized by a polyol process and employed as transparent electrodes. The AgNW transparent electrodes can be fabricated by heattreatment at about 200 °C which forms connecting junctions between AgNWs. Such a heating process is, however, one of the drawbacks of the fabrication of AgNW electrodes on heat-sensitive substrates. Here it has been demonstrated that the electrical conductivity of AgNW electrodes can be improved by mechanical pressing at 25 MPa for 5 s at room temperature. This simple process results in a low sheet resistance of 8.6 Ω/square and a transparency of 80.0%, equivalent to the properties of the AgNW electrodes heated at 200 °C . This technique makes it possible to fabricate AgNW transparent electrodes on heat-sensitive substrates. The AgNW electrodes on poly(ethylene terephthalate) films exhibited high stability of their electrical conductivities against the repeated bending test. In addition, the surface roughness of the pressed AgNW electrodes is one-third of that of the heat-treated electrode because the AgNW junctions are mechanically compressed. As a result, an organic solar cell fabricated on the pressed AgNW electrodes exhibited a power conversion as much as those fabricated on indium tin oxide electrodes. These findings enable continuous roll-to-roll processing at room temperature, resulting in relatively simple, inexpensive, and scalable processing that is suitable for forthcoming technologies such as organic solar cells, flexible displays, and touch screens.

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Section: Introductionmentioning

confidence: 99%

Fabrication of silver nanowire transparent electrodes at room temperature

et al. 2011

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“…Silver has the highest electrical conductivity (6.3 × 107 S/m) among all the metals, by virtue of which Ag NWs are considered as very promising candidates in flexible electronics [11][12][13]. Since then, Ag NW films have been fabricated using techniques, such as vacuum filtration, transfer printing onto polyethylene substrates, drop casting, and air-spraying from NW suspension.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Optical Characteristics of Silver Nanoparticles on Different Substrates

Budhiraja

Sharma

Dahiya

et al. 2013

ILCPA

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Silver nanoparticles have been deposited on glass and polyethylene substrate by Chemical Bath Deposition (CBD) technique and Chemical rolling method. A comparative study has shown that Chemical bath technique is superior compared to rolling technique for uniform deposition of silver nanoparticles on glass substrate. Crystallography investigation of these materials is done by X-ray diffraction (XRD) which reveals that average grain size is in nano region. Scanning Electron Microscope (SEM) is used for topography study of these prepared nanostructures. Optical properties of the synthesized materials are studied by UV-VIS in detail to check their potential for next era industrial revolution.

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“…1 ITO, however, suffers from several drawbacks that limit its viability as a TCE for next-generation optoelectronics, including high cost, poor performance on plastic substrates, and a tendency to crack when flexed. 2,3 Potential solution-processable alternatives to ITO include carbon nanotubes, 4,5 graphene, [6][7][8][9] conducting polymers, 10,11 and metal nanowires [12][13][14][15] Single-Walled Carbon Nanotubes (SWCNTs) are attractive TCE materials due to their high intrinsic conductivity and mechanical durability but, owing to large inter-tube resistances, their reported performance characteristics are significantly worse than ITO. The need for aggressive acid treatments to induce p-type doping of semiconducting tubes and the non-permanent nature of the doped state are also problematic.…”

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confidence: 99%

Fully Solution-Processed Semitransparent Organic Solar Cells with a Silver Nanowire Cathode and a Conducting Polymer Anode

et al. 2014

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We report the fabrication of efficient indium-tin-oxide-free organic solar cells based on poly(3-hexylthiophene-2,5-diyl):[6,6]-phenyl-C61-butyric acid methyl ester (P3HT: PCBM). All layers of the devices from the lowermost silver nanowire cathode to the uppermost conducting polymer anode are deposited from solution and processed at plastic-compatible temperatures < 200 °C. Owing to the absence of an opaque metal electrode, the devices are semitransparent with potential applications in power-generating windows and tandem-cells. The measured power conversion efficiencies (PCEs) of 2.3 and 2.0 % under cathode-and anode-side illumination, respectively, match previously reported PCE values for equivalent semitransparent organic solar cells using indium tin oxide.Transparent conducting electrodes (TCEs), which make electrical contact to other functional layers for current supply/extraction while also transmitting light, are essential components of optoelectronic devices. State-of-the-art TCEs are made of metal oxides, most

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Transparent Metal Nanowire Thin Films Prepared in Mesostructured Templates

Cited by 147 publications

References 21 publications

Fabrication of silver nanowire transparent electrodes at room temperature

Fabrication of silver nanowire transparent electrodes at room temperature

Synthesis and Optical Characteristics of Silver Nanoparticles on Different Substrates

Fully Solution-Processed Semitransparent Organic Solar Cells with a Silver Nanowire Cathode and a Conducting Polymer Anode

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