Highly Transparent and Conductive Films of Densely Aligned Ultrathin Au Nanowire Monolayers

Sánchez‐Iglesias, Ana; Rivas‐Murias, B.; Grzelczak, Marek; Pérez‐Juste, Jorge; Liz‐Marzán, Luis M.; Rivadulla, F.; Correa‐Duarte, Miguel A.

doi:10.1021/nl3021522

Cited by 109 publications

(93 citation statements)

References 32 publications

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“…However, a few other metallic nanowires have been prepared, and some of them have shown interesting properties for the fabrication of electrically active transparent conductors. In particular, copper [35][36][37][38], gold [39,40] and cupronickel [41] nanowires have demonstrated promising results. To date, the most studied metallic nanowires are made of silver.…”

Section: Fabrication Of Silver Nanowiresmentioning

confidence: 99%

Flexible transparent conductive materials based on silver nanowire networks: a review

Langley¹,

Giusti²,

Mayousse³

et al. 2013

Nanotechnology

650

510

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The class of materials combining high electrical or thermal conductivity, optical transparency and flexibility is crucial for the development of many future electronic and optoelectronic devices. Silver nanowire networks show very promising results and represent a viable alternative to the commonly used, scarce and brittle indium tin oxide. The science and technology research of such networks aims at better understanding the physical and chemical properties of this nanowire-based material while opening attractive new applications.

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Section: Fabrication Of Silver Nanowiresmentioning

confidence: 99%

Flexible transparent conductive materials based on silver nanowire networks: a review

Langley¹,

Giusti²,

Mayousse³

et al. 2013

Nanotechnology

650

510

View full text Add to dashboard Cite

show abstract

“…18,228,229 Although many metal nanostructures, such as copper, 230,231 gold, 232,233 and cupronickel, 234 have been demonstrated with promising properties and possibility as electrodes, Ag NWs have been the focus of research in this area due to the excellent electrical properties of bulk Ag materials and the synthesis scalability of Ag NWs. Ag NWs with a typical diameter of 20 to 40 nm and length of >20 μm dispersed in water or organic solvents are now commercially available.…”

Section: Metal Nanowiresmentioning

confidence: 99%

Transparent electrodes for organic optoelectronic devices: a review

et al. 2014

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Abstract. Transparent conductive electrodes are one of the essential components for organic optoelectronic devices, including photovoltaic cells and light-emitting diodes. Indium-tin oxide (ITO) is the most common transparent electrode in these devices due to its excellent optical and electrical properties. However, the manufacturing of ITO film requires precious raw materials and expensive processes, which limits their compatibility with mass production of large-area, low-cost devices. The optical/electrical properties of ITO are strongly dependent on the deposition processes and treatment conditions, whereas its brittleness and the potential damage to underlying films during deposition also present challenges for its use in flexible devices. Recently, several other transparent conductive materials, which have various degrees of success relative to commercial applications have been developed to address these issues. Starting from the basic properties of ITO and the effect of various ITO surface modification methods, here we review four different groups of materials, doped metal oxides, thin metals, conducting polymers, and nanomaterials (including carbon nanotubes, graphene, and metal nanowires), that have been reported as transparent electrodes in organic optoelectronic materials. Particular emphasis is given to their optical/electrical and other material properties, deposition techniques, and applications in organic optoelectronic devices.

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“…The metallic nanowire film is capable of providing high transparency and conductivity by virtue of its characteristic structure, which consists of a percolated random network of nanowires. [5][6][7][8][9] Unlike the brittle metal oxide skeletonbased ITO, metal-nanowire films are easily applicable to bendable, wearable active devices, because of the inherently flexible nature of metals. A high aspect ratio is a critical factor for high transparency and conductivity, but metal nanowires possessing this quality suffer from thermal instability.…”

Section: Introductionmentioning

confidence: 99%

Annealing-free fabrication of highly oxidation-resistive copper nanowire composite conductors for photovoltaics

et al. 2014

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Copper nanowire (CuNW)-network film is a promising alternative to the conventional indium tin oxide (ITO) as a transparent conductor. However, thermal instability and the ease of oxidation hinder the practical applications of CuNW films. We present oxidation-resistive CuNW-based composite electrodes that are highly transparent, conductive and flexible. Lactic acid treatment effectively removes both the organic capping molecule and the surface oxide/hydroxide from the CuNWs, allowing direct contact between the nanowires. This chemical approach enables the fabrication of transparent electrodes with excellent properties (19.8 X sq À1 and 88.7% at 550 nm) at room temperature without any atmospheric control. Furthermore, the embedded structure of CuNWs with Al-doped ZnO (AZO) dramatically improves the thermal stability and oxidation resistance of CuNWs. These AZO/CuNW/AZO composite electrodes exhibit high transparency (83.9% at 550 nm) and low sheet resistance (35.9 X sq À1 ), maintaining these properties even with a bending number of 1280 under a bending radius of 2.5 mm. When implemented in a Cu(In 1 Àx ,Gax)(S,Se) 2 thin-film solar cell, this composite electrode demonstrated substantial potential as a low-cost (Ag-, In-free), high performance transparent electrode, comparable to a conventional sputtered ITO-based solar cell. NPG Asia Materials (2014) 6, e105; doi:10.1038/am.2014.36; published online 13 June 2014Keywords: chemical reduction treatment; copper nanowire; indium-free transparent electrodes; photovoltaic; thermal oxidation resistance INTRODUCTION Transparent conductive materials are a crucial, basic element in the realization of various optoelectronic devices, such as flat panel displays, touch screens, organic light emitting diodes and thin-film solar cells. 1-3 Indium tin oxide (ITO) has been the most widely explored material, because of its excellent transparency (B90% at 550 nm) and low sheet resistance (B20 O sq À1 ). However, with the rising demand for transparent electrodes, the development of cost-effective alternatives to ITO has been of great importance. The quest for alternative transparent conductors, including conducting polymers, carbon nanotubes, graphenes and nanostructured electrodes, has been a topic of active research for the last decade. 4 Among these materials, metal-nanowire network films are thought to be a substantial candidate. The metallic nanowire film is capable of providing high transparency and conductivity by virtue of its characteristic structure, which consists of a percolated random network of nanowires. [5][6][7][8][9] Unlike the brittle metal oxide skeletonbased ITO, metal-nanowire films are easily applicable to bendable, wearable active devices, because of the inherently flexible nature of metals. A high aspect ratio is a critical factor for high transparency and conductivity, but metal nanowires possessing this quality suffer

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Highly Transparent and Conductive Films of Densely Aligned Ultrathin Au Nanowire Monolayers

Cited by 109 publications

References 32 publications

Flexible transparent conductive materials based on silver nanowire networks: a review

Flexible transparent conductive materials based on silver nanowire networks: a review

Transparent electrodes for organic optoelectronic devices: a review

Annealing-free fabrication of highly oxidation-resistive copper nanowire composite conductors for photovoltaics

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