Design of moiré-free metal meshes using ray tracing for touch screen panels

Shin, Dong-Kyun; Park, Jongwoon

doi:10.1016/j.displa.2015.01.004

Cited by 19 publications

(13 citation statements)

References 5 publications

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“…Shin et al reported a novel alternative process for fabricating moiré-fringeless TCEs, by printing a random serpentine network of medium-field electrospun silver microfibers (AgMFs) with a line width of 2.32 ± 0.97 µm on a polyethylene terephthalate (PET) substrate. [84] Regarding the applications of printed metal mesh, Yu et al reported ITO-free FOSCs with screenprintable Ag grids in honeycomb or lined patterns embedded in barriers with power conversion efficiencies of 1.82% and 1.92%, respectively. [85] All of the publications pertaining to the printing methods mentioned above, however, reported high cost and complicated processes as the main problems.…”

Section: Metal Meshmentioning

confidence: 99%

“…Among them, hybrid electrodes comprising AgNWs‐graphene oxide (GO) and AgNWs‐mono layer graphene (MLG) from CVD have been widely investigated and applied to numerous optoelectronic devices. [ 15–167 ] As shown in Table 4, significant surface‐roughness reduction by applying these materials is achievable. The GO dispersion induced...…”

Section: Problems Of Agnws In Solar Cellsmentioning

confidence: 99%

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Benefits, Problems, and Solutions of Silver Nanowire Transparent Conductive Electrodes in Indium Tin Oxide (ITO)‐Free Flexible Solar Cells

Azani¹,

Hassanpour²,

Torres

2020

Advanced Energy Materials

211

177

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their use in large-scale applications. [2] Thus, a second generation of solar cells based on other inorganic materials, such as cadmium telluride (CdTe)/cadmium indium gallium diselenide (CIGS), have been developed; however, their practical applications are restricted by the toxi city and scarcity of the materials, along with their high production cost. [3,4] Consequently, OSCs, dye-sensitized solar cells (DSSCs), [5,6] and perovskite solar cells (PSCs) [7-9] have been developed, which are considered as third-generation SCs. Among the solar cells of the third generation, OSCs received significant attention due to their flexibility, low cost, and ease of fabrication, [10] which combined with their high efficiency, significantly contribute to the commercialization of FOSCs. Mass production of flexible OSCs is possible by using a roll-to-roll process, which enables the fabrication of wearable devices. [11,12] Potential applications of FOSCs include wearable devices, [13] space applications, [14] rechargeable bags and tents, and solar airships. One of the main components for fabricating FOSCs is TCEs, which play a key role in achieving high-performance OSCs, where current and light transmissions are simultaneously enabled. [15] Generally, the following characteristics are required for achieving a high-performance transparent electrode: [16-18] 1) high optical transmittance for permitting photons to reach and be absorbed within the active layer; 2) low sheet resistance for decreasing the resistance of solar cells; 3) low surface roughness for avoiding electrical shortage In this review, silver nanowires (AgNWs) are introduced, as the primary material to replace indium tin oxide for fabricating cost-effective flexible organic solar cells (FOSCs), because of their remarkable solution-processing, flexibility, transparency, and conductivity, along with their enhanced properties in terms of light-scattering, plasmonic effects, and transmittance in the near infrared region. The drawbacks of AgNWs, particularly their high roughness, low adhesion to substrates, atmospheric corrosion, degradation under UV and visible light, and poor contact at wire-wire junctions, must be resolved prior to their use in commercial FOSCs applications. Herein, comparisons among all candidates (e.g., graphene, carbon nanotubes, metal grids, and conducting polymers), along with a report of all recent progress in addressing these issues for using AgNWs as flexible transparent conductive electrodes (TCEs), are discussed. In addition, recent publications on the fabrication of highly efficient FOSCs based on AgNWs are summarized. The discussed issues regarding AgNWs-TCEs apply not only to FOSCs, but can be generalized for other third-generation solar cells, such as perovskite solar cells and dye-sensitized solar cells; additionally, they provide insight for other optoelectronic applications, such as organic light-emitting diodes, liquid crystal displays, smart windows, touch panels, and heaters.

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Section: Metal Meshmentioning

confidence: 99%

Section: Problems Of Agnws In Solar Cellsmentioning

confidence: 99%

Benefits, Problems, and Solutions of Silver Nanowire Transparent Conductive Electrodes in Indium Tin Oxide (ITO)‐Free Flexible Solar Cells

Azani¹,

Hassanpour²,

Torres

2020

Advanced Energy Materials

211

177

View full text Add to dashboard Cite

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“…At present, capacitive touch technology is mainly divided into multiple implementation solutions such as OGS, OGM, On-Cell, and In-Cell. Among them, OGM is more and more popular due to its lower cost, higher yield, and better support for active pens [1][2][3] .…”

Section: Introductionmentioning

confidence: 99%

P‐15.1: Research of Ultra‐low Reflection Metal for Metal Mesh

Liu

Guo

Zeng

et al. 2021

Symp Digest of Tech Papers

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This paper first theoretically simulates the change trend of Metal reflectance with various thicknesses of IZO and MoNbOxNy, and then experimentally produces an ultra‐low‐reflective Metal film layer: 60nm IZO + 45nm MoNbOxNy, with a reflectance of 4.97%. Furthermore, the reflectance uniformity is very excellent, the maximum & minimum values within the range of the average value ± 0.50%. Subsequently, this paper performed performance tests on IZO/MoNbOxNy Metal samples. The results are as follows: ① The reflectance in the whole band of 380nm ~ 780nm is stable, all within the range of 5% ~ 7%; ② Each film layer is well crystallized, and there is no abnormality in the microscopic morphology; ③ The adhesion is good; ④ The invisible performance Level is improved from Level 5 to Level 3. The indicators meet the requirements of the TP industry and can be used to make ultra‐low reflection and good invisible touch panels.

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“…기존의 TCO에 대한 연구가 많이 진행되어 왔지만 희토류금속 사용으로 인한 높은 원가, sputtering 중 고 에너지 입자에 의 한 박막 손상, 대면적화에 따른 면저항 감소 등의 문제가 존재한다. 이러한 문제를 극복하기 위해 metal mesh, one-dimensional imprinted metal electrode, solution-processed random metal nano wire, graphene, nano mesh 등 많은 대체 재료들이 개발되고 있지 만 실용화하기에는 기술이 부족한 실정이다 [3,5]. 그 중 최근 metal mesh에 대한 가능성이 대두되면서 gravure offset 방식과 photolithography 법으로 제작 되어 연구가 진행 중에 있다.…”

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“…Gravure offset 방식 은 blanket roll에 전도성 ink를 찍어 target surface 에 그대로 인쇄하는 방식으로 공정비용 면에서 매 우 절약 되지만, 미세 패턴을 구현할 수 없다는 단 점이 있다. 하지만, photolithography방법은 mask를 이용하여 ~5.0 μm 급의 미세패턴 구현이 가능하여 습식·건식의 에칭 공정 적용이 가능하다는 장점이 있다 [5][6]. …”

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Thin Metal Meshes for Touch Screen Panel Prepared by Photolithography

Kim¹,

Song²

2016

Journal of the Korean institute of surface engineering

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The metal mesh films with thickness of 1.0, 1.5, 2.0 µm were prepared by photolithography using Ag, Al, and Cu metals. Every metal films were showed C(111) preferred orientation and Ag showed the lowest resistivity and followed by Al and Cu. The transmittance of almost films were higher than 90%. But, the Ag film with thickness of 2.0 µm was delaminated during photolithography process due to low adhesion. So, Cu and Ti metal films were introduced under Ag film to improve adhesion property. The Cu film showed higher adhesion properties compared to Ti film. Furthermore, the Ti films that deposited on Ag film showed higher acid resistance.

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Design of moiré-free metal meshes using ray tracing for touch screen panels

Cited by 19 publications

References 5 publications

Benefits, Problems, and Solutions of Silver Nanowire Transparent Conductive Electrodes in Indium Tin Oxide (ITO)‐Free Flexible Solar Cells

Benefits, Problems, and Solutions of Silver Nanowire Transparent Conductive Electrodes in Indium Tin Oxide (ITO)‐Free Flexible Solar Cells

P‐15.1: Research of Ultra‐low Reflection Metal for Metal Mesh

Thin Metal Meshes for Touch Screen Panel Prepared by Photolithography

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