Transparent conductive Ta/Al/Ta-grid electrode for optoelectronic and electromagnetic interference shielding applications

Kumar, Pankaj; Reddy, Pavani Vijay; Choudhury, Balamati; Chowdhury, P.; Barshilia, Harish C.

doi:10.1016/j.tsf.2016.06.010

Cited by 19 publications

(11 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A growing need exists for suitable transparent materials that can act as a shield and limit the effects of electromagnetic energies. One of the more popular approaches to provide adequate shielding effectiveness (SE) is deposited transparent conductive films (TCFs) on transparent polyesters substrates, which are widely used in numerous fields, such as optoelectronic devices (displays, smart windows, etc. ), as heatable layers in defrosting windows or dissipating static, etc.…”

Section: Introductionmentioning

confidence: 99%

Electrical, Mechanical, and Electromagnetic Shielding Properties of Silver Nanowire‐Based Transparent Conductive Films

Zhang

Zhong

2018

Physica Status Solidi (a)

View full text Add to dashboard Cite

In this work, an acrylate-based organic coating is developed to cover the electrically conductive silver nanowires (AgNWs) to improve the adhesion properties of AgNWs on PMMA substrates. A simple spray coating technique is performed to obtain large scale and highly uniform conductive silver nanowire films on PMMA substrates. The AgNWs covered by organic coatings are evaluated ex situ in terms of adhesion, transparency, electrical, mechanical, and electromagnetic shielding properties. Results indicated the adhesion of AgNWs covered by coatings is greatly superior to the uncovered AgNWs, which can be attributed to the strong hydrogen interfacial bond between the coating and PMMA substrate. Furthermore, the overall properties, including good transparency (!80% in the visible range), flexibility (bending more than 1000 cycles), electromagnetic shielding (larger than 30 GHz from 1 to 18 GHz), meet the requirements of transparent parts in the aeronautical industry, and other commercial fields.

show abstract

Section: Introductionmentioning

confidence: 99%

Electrical, Mechanical, and Electromagnetic Shielding Properties of Silver Nanowire‐Based Transparent Conductive Films

Zhang

Zhong

2018

Physica Status Solidi (a)

View full text Add to dashboard Cite

show abstract

“…2c. On the contrary, when the Ag thickness is greater than or equal to 80 nm, the as-deposited SAS multilayers become opaque, in this situation, the transmittance of mesh electrode can be calculated by 27…”

Section: Resultsmentioning

confidence: 99%

“…Based on previous research, the electrical conductivity of mesh electrode is basically depending upon the filling factor (FF) 27 , which is defined by W/(W + S), where W is the width of the mesh and S stand for the mesh spacing. In this research, W is 15 μm and S is 400 μm.…”

Section: Resultsmentioning

confidence: 99%

Transparent heater with meshed amorphous oxide/metal/amorphous oxide for electric vehicle applications

Lee

2020

Sci Rep

View full text Add to dashboard Cite

for electric vehicle application, one of the problems to be solved is defrosting or defogging a windshield or a side mirror without gas-fired heaters. In this paper, we report on a high performance of transparent heater with meshed amorphous-SiinZno (SiZo)/ Ag/ amorphous-SiinZno (SiZo) (SAS) for pure electric vehicles. We have adopted amorphous oxide materials like SIZO since SIZO is well known amorphous oxide materials showing high transparency and smooth surface roughness. With the mesh processing technology, a transparent electrode with high transmittance of 91% and low sheet resistance of 13.8 Ω/ϒ was implemented. When a 10 V supply voltage is applied to transparent heater, the transparent heater on glass substrate was heated up to 130 o C in just 5 seconds and then reached to 250 o c after tens of seconds due to the low sheet resistance. In addition, the SAS transparent meshed heater (TMH) showed high stability under cycling test and long time working stability test. In the context of rapid development of Internet of Things (IoT) and 5 G communications, the gas-free electric vehicle is once again became a main topic of recent research. In order to prepare for the era of electrified transportation, the researcher has focused on the auto parts technology that is used by fuel-free electric vehicles, for example, the transparent heater applied in defrosting or defogging a windshield or a side mirror in the winter 1. High transparency in visible region and high electrical conductivity are two important factors of transparent heaters, and this technology is based on the studies of transparent conductive electrode (TCE). Compared with the TCEs that are used for display applications or solar energy applications, for the purpose of rapid heating, transparent heaters are suggested to have better electrical conductivity 2. Electrical properties of TCEs are usually evaluated by measuring the thin films' resistivity, which could be characterized by the reciprocal product of carrier concentration and mobility 3. For instance, In-Sn-O (ITO) is the dominant material in the TCE industry and also be used in the recent manufacturing process of the side mirror 4. The standard electrical properties of ITO thin films, such as carrier concentration, mobility and corresponding resistivity are about 10 20 cm −3 , 10 cm 2 /V•s and 10 −4 Ω•cm in magnitude 5. It can be seen from the previous studies of TCEs that an ideal method to improve the conductivity of TCE thin films is to limit the carrier concentration and increase the carrier mobility simultaneously 6. Nevertheless, until now, it is too difficult to improve the mobility to 10 3 cm 2 /V•s in magnitude by using the conventional TCE materials 6 : for example, transparent conductive oxides (TCOs), such as ITO, aluminum-zinc-oxide (AZO) 7 , gallium-zinc-oxide (GZO) 2. Their mobility will be limited as a result of carriers scattering when carrier concentration is greater than 10 20 cm −3 8 ; otherwise, nanowire networks such as Ag nanowire (Ag NW) 9 , carbon nanotube (CNT) 10 , whos...

show abstract

“…For the ultrasonic treatment, the electrode was dipped in acetone to carry out the treatment process. [ 150 ] Kulkarni et al studied the adhesion strength of Ag wire mesh and a polyethylene terephthalate (PET) substrate by applying sonication tests. Simple mechanical peeling was used to remove the template from the PET sheet utilizing adhesion tape.…”

Section: Flexible Solar Cells Using Metal‐based Transparent Electrodesmentioning

confidence: 99%

Recent Progress on Emerging Transparent Metallic Electrodes for Flexible Organic and Perovskite Photovoltaics

2021

View full text Add to dashboard Cite

The rapid development of smart and wearable electronics calls for revolutionizing optoelectronics to become flexible, lightweight, and affordable. To meet these demands in photovoltaic devices, that is, solar cells, it is essential to develop mechanically flexible transparent electrodes over the conventional rigid ones while features such as low‐temperature procedures, stability, solution process, and/or low cost are highly desired and often required. Moreover, the optoelectronic properties of an electrode must not be compromised in an operational flexible cell. Despite the considerable challenges, various bendable transparent electrodes for solar cells have emerged in recent years. Particularly, transparent electrodes based on metallic materials are especially attractive as metal offers excellent conductivity and their formation processing is generally mature and commercially viable. This work aims to provide an overview of the recent development of metal‐based transparent electrodes for flexible organic and perovskite photovoltaics. After the introduction, metallic materials for the transparent electrodes including nanowires, meshes/grids, and films are discussed. The procedures and protocols for cell flexibility testing are summarized, before highlighting recent progress on fully functional, high‐efficiency flexible organic and perovskite solar cells using these transparent metallic electrodes. Finally, the challenges and outlook of the research field are discussed.

show abstract

Transparent conductive Ta/Al/Ta-grid electrode for optoelectronic and electromagnetic interference shielding applications

Cited by 19 publications

References 57 publications

Electrical, Mechanical, and Electromagnetic Shielding Properties of Silver Nanowire‐Based Transparent Conductive Films

Electrical, Mechanical, and Electromagnetic Shielding Properties of Silver Nanowire‐Based Transparent Conductive Films

Transparent heater with meshed amorphous oxide/metal/amorphous oxide for electric vehicle applications

Recent Progress on Emerging Transparent Metallic Electrodes for Flexible Organic and Perovskite Photovoltaics

Contact Info

Product

Resources

About