Highly flexible and transparent metal grids made of metal nanowire networks

Lee, Chulhee; Kim, Chuntae; Jeong, Minseok; Kim, Jeonghyo; Lee, Jae‐Wook; Oh, Jin‐Woo; Lee, Jaebeom; Kim, Sung Hyun; Park, Simon S.; Kim, Jong-Man

doi:10.1039/c5ra14513a

Cited by 10 publications

(7 citation statements)

References 44 publications

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“…Another type of metal‐grid FTE was reported by Lee et al They introduced solution‐processed AgNW percolation metal grids by utilizing a well‐established wet‐coating method and subsequent selective chemical etching of the AgNWs. In addition, strong adhesion between the AgNW‐grid FTEs and PEDOT:PSS buffer layer was observed.…”

Section: Flexible and Transparent Electrodesmentioning

confidence: 99%

Bulk‐Heterojunction Organic Solar Cells: Five Core Technologies for Their Commercialization

et al. 2016

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The past two decades of vigorous interdisciplinary approaches has seen tremendous breakthroughs in both scientific and technological developments of bulk-heterojunction organic solar cells (OSCs) based on nanocomposites of π-conjugated organic semiconductors. Because of their unique functionalities, the OSC field is expected to enable innovative photovoltaic applications that can be difficult to achieve using traditional inorganic solar cells: OSCs are printable, portable, wearable, disposable, biocompatible, and attachable to curved surfaces. The ultimate objective of this field is to develop cost-effective, stable, and high-performance photovoltaic modules fabricated on large-area flexible plastic substrates via high-volume/throughput roll-to-roll printing processing and thus achieve the practical implementation of OSCs. Recently, intensive research efforts into the development of organic materials, processing techniques, interface engineering, and device architectures have led to a remarkable improvement in power conversion efficiencies, exceeding 11%, which has finally brought OSCs close to commercialization. Current research interests are expanding from academic to industrial viewpoints to improve device stability and compatibility with large-scale printing processes, which must be addressed to realize viable applications. Here, both academic and industrial issues are reviewed by highlighting historically monumental research results and recent state-of-the-art progress in OSCs. Moreover, perspectives on five core technologies that affect the realization of the practical use of OSCs are presented, including device efficiency, device stability, flexible and transparent electrodes, module designs, and printing techniques.

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Section: Flexible and Transparent Electrodesmentioning

confidence: 99%

Bulk‐Heterojunction Organic Solar Cells: Five Core Technologies for Their Commercialization

et al. 2016

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“…After the removal of photoresist on substrate by organic solvent, the metal mesh can be achieved on a solid substrate. Meanwhile, the metal mesh can also be achieved through chemical etching of metal film or metal nanowire film covered by patterned photoresist and leaving the metal mesh protected by photoresist, which is lately removed by organic solvent . The nanoimprint lithography technique has also developed for transferring the metal mesh on patterned soft template, which is stamped from a metal film or directly coated by physical vapor deposition, to solid or flexible substrate through applying proper pressure at the back of the template …”

Section: The Front Metal Electrodementioning

confidence: 99%

Emerging Novel Metal Electrodes for Photovoltaic Applications

Ren

Ouyang

et al. 2018

Small

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Emerging novel metal electrodes not only serve as the collector of free charge carriers, but also function as light trapping designs in photovoltaics. As a potential alternative to commercial indium tin oxide, transparent electrodes composed of metal nanowire, metal mesh, and ultrathin metal film are intensively investigated and developed for achieving high optical transmittance and electrical conductivity. Moreover, light trapping designs via patterning of the back thick metal electrode into different nanostructures, which can deliver a considerable efficiency improvement of photovoltaic devices, contribute by the plasmon-enhanced light-mattering interactions. Therefore, here the recent works of metal-based transparent electrodes and patterned back electrodes in photovoltaics are reviewed, which may push the future development of this exciting field.

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“…AgNW electrodes, including Meyer rod coating [5,33,62,63], dip coating [64], spin coating [65][66][67], drop casting [68], spray coating [69], vacuum filtration [70], roll-to-roll printing [19,71,72] and transferring [73,74]. [79], and (e) pad printer [80].…”

Section: Coating Techniquesmentioning

confidence: 99%

Fabrication and Applications of Flexible Transparent Electrodes Based on Silver Nanowires

Yi¹,

Zhu²,

Deng³

2018

Flexible Electronics

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There has been an explosion of interests in using flexible transparent electrodes for nextgeneration flexible electronics, such as touch panels, flexible lighting, flexible solar cells, and wearable sensors. Silver nanowires (AgNWs) are a promising material for flexible transparent electrodes due to high electrical conductivity, optical transparency and mechanical flexibility. Despite many efforts in this field, the optoelectronic performance of AgNW networks is still not sufficient to replace the present material, indium tin oxide (ITO), due to the high junction resistance. Also, the environmental stability and the mechanical properties need enhancement for future commercialization. Many studies have attempted to overcome such problems by tuning the AgNW synthesis and optimizing the film-forming process. In this chapter, we survey recent progresses of AgNWs in flexible electronics by describing both fabrication and applications of flexible transparent AgNW electrodes. The synthesis of AgNWs and the fabrication of AgNW electrodes will be demonstrated, and the performance enhanced by various methods to suit different applications will be also discussed. Finally, technical challenges and future trends are presented for the application of transparent electrodes in flexible electronics.

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Highly flexible and transparent metal grids made of metal nanowire networks

Abstract: Well-established microfabrication techniques are employed to demonstrate a new architecture of metal grids made of metal nanowire networks for flexible and transparent conductive electrode applications.

Cited by 10 publications

References 44 publications

Bulk‐Heterojunction Organic Solar Cells: Five Core Technologies for Their Commercialization

Bulk‐Heterojunction Organic Solar Cells: Five Core Technologies for Their Commercialization

Emerging Novel Metal Electrodes for Photovoltaic Applications

Fabrication and Applications of Flexible Transparent Electrodes Based on Silver Nanowires

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