scholarly journals Effect of Surfactant Addition on Organic Transparent Conductive Films Fabricated by Inkjet Printing Method

2021 ◽  
Vol 2 (4) ◽  
pp. 536-544
Author(s):  
Atsushi Nitta ◽  
Naohiko Chosa ◽  
Kazuhiro Takeda
Keyword(s):  
Indium Tin Oxide ◽  
Resource Depletion ◽  
Rare Metal ◽  
Interface State ◽  
Polyethylene Naphthalate ◽  
Polar Solvents ◽  
Conductive Films ◽  
Conductive Film ◽  
Active Research ◽  
High Flexibility

Recently, active research has been conducted on the development of flexible electronic devices. Hence, the transparent conductive film (TCF), an essential component of the device, must also be flexible. However, the commonly used indium tin oxide (ITO) TCF lacks flexibility and contains rare metal, making resource depletion an issue. Therefore, we focused on poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT:PSS), which has high flexibility and conductivity. Flexible TCFs have been fabricated by coating PEDOT:PSS on polyethylene naphthalate substrates using an inkjet printer. However, the current issue in such fabrication is the effect of the interface state on the transparency and conductivity of the thin film. In this study, we investigated the effect of surfactant in addition to polar solvents on the properties of thin films fabricated with PEDOT:PSS ink. Although the electrical conductivity was reduced, the transmittance remained above 90%. Thus, these results are comparable to those of ITO TCFs for practical use in terms of optical properties.

Research of ITO Transparent Conductive

2014 ◽  
Vol 608-609 ◽  
pp. 1025-1029 ◽  
Author(s):  
Ping He ◽  
Bo Li Zhai ◽  
Yan Yi
Keyword(s):  
Indium Tin Oxide ◽  
Development Trend ◽  
High Tech ◽  
Preparation Methods ◽  
Transparent Conductive Film ◽  
Conductive Films ◽  
Conductive Film ◽  
The Future ◽  
Type Semiconductor ◽  
Research Situation

Indium tin oxide (ITO) as a transparent conductive film (TCO) is a kind of oxide film of the most widely used which is the N type semiconductor material In2O3 doped with Sn, which has many excellent properties based on: conductivity, optical property, processing property and chemical stability etc.In recent years, which has attracted widespread attention, and it is widely used in all aspects of life such as transportation, aerospace, defense, building, solar energy and high-tech fields. Therefore, it is an inevitable trend of social development in the future understanding and improving basic properties and preparation methods of the ITO thin film. This paper summarized the present research situation of ITO transparent conductive film current from the two aspects of characteristics and manufacturing process of ITO films; then reviewed the application status of ITO transparent conductive films in recent years; finally, the future development trend of Ito transparent conductive made a brand-new outlook by analyzing the current situation of the above.

scholarly journals Self-Healing Flexible Conductive Film by Repairing Defects via Flowable Liquid Metal Droplets

Micromachines ◽  
2019 ◽  
Vol 10 (2) ◽  
pp. 113 ◽  
Author(s):  
Ruiwen Niu ◽  
Mingliang Jin ◽  
Jieping Cao ◽  
Zhibin Yan ◽  
Jinwei Gao ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Liquid Metal ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Self Healing ◽  
Conductive Films ◽  
Ito Film ◽  
Conductive Film ◽  
Capillary Wicking ◽  
Metal Droplets

Self-healing flexible conductive films have been fabricated, evaluated, and applied. The film is composed of a fragile indium tin oxide (ITO) layer covered with sprayed liquid metal (LM) droplets. Self-healing of electrical conductivity is achieved via spontaneous capillary wicking of LM droplets into cracks/defects of the ITO film. The liquid metal adhering onto the ITO layer can also connect the ITO fragments during bending to keep the overall conductivity of the composite LM/ITO film stable. Stable and reversible electrowetting performance has been achieved with the composite LM/ITO as the conductive film, in either flat or curved states.

scholarly journals Sandwich-Structured Silver Nanowire Transparent Conductive Films with 3H Hardness and Robust Flexibility for Potential Applications in Curved Touch Screens

Nanomaterials ◽  
2019 ◽  
Vol 9 (4) ◽  
pp. 557 ◽  
Author(s):  
Xikun Chu ◽  
Jingqi Tao ◽  
Shuxin Li ◽  
Shulin Ji ◽  
Changhui Ye
Keyword(s):  
Indium Tin Oxide ◽  
Scratch Resistance ◽  
Silver Nanowire ◽  
Hard Coating ◽  
Resistance Change ◽  
Long Term Stability ◽  
Conductive Films ◽  
Conductive Film ◽  
Potential Applications ◽  
Improved Performance

A sandwich-structured bottom hard-coat/silver nanowire/top hard-coat (BHC/AgNW/THC) transparent conductive film (TCF) has been prepared by embedding the functional AgNW layer between two HC layers. The BHC/AgNW/THC TCFs show high scratch resistance with a hardness of 3H due to the enhanced adhesion to the substrate. In addition, the BHC/AgNW/THC TCFs exhibit a transmittance of 90.6% and a haze of 1% at 550 nm under a sheet resistance of 72 Ω/sq. Furthermore, highly enhanced long-term stability has been guaranteed by the HC layers due to their excellent gas barrier property. The amazing fact is that hard coating has little effect on the flexibility of AgNW films especially under extreme bending conditions and negligible resistance change could be observed after bending over thousands of times. Consequently, the greatly improved performance of BHC/AgNW/THC TCFs provided by employing hard coating layers paves the way for real-world applications of flexible AgNWs in vast areas that rigid indium tin oxide is not suitable.

All solution-processed silver nanowires composite silica nanospheres antireflection structure with synergetic optoelectronic performance

2021 ◽  
Author(s):  
Yuxin Tang ◽  
Wanying Yin ◽  
Yue Huang ◽  
Ganghua Zhang ◽  
Qingbiao Zhao ◽  
...  
Keyword(s):  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Silver Nanowires ◽  
Great Promise ◽  
Silica Nanospheres ◽  
Solution Processed ◽  
Transparent Conductive Films ◽  
Conductive Films

Silver nanowires (AgNWs) network has shown great promise as transparent conductive films (TCFs) due to its excellent optoelectronic performance. In order to replace indium tin oxide (ITO), considerable intricate methods...

scholarly journals Moisture-Assisted Formation of High-Quality Silver Nanowire Transparent Conductive Films with Low Junction Resistance

Coatings ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 671
Author(s):  
Lipeng Zhou ◽  
Yuehui Hu ◽  
Hao Gao ◽  
Youliang Gao ◽  
Wenjun Zhu ◽  
...  
Keyword(s):  
Indium Tin Oxide ◽  
Capillary Condensation ◽  
Silver Nanowire ◽  
Environmental Stability ◽  
Bending Test ◽  
Commercial Application ◽  
Junction Resistance ◽  
Transparent Conductive Film ◽  
Conductive Film ◽  
Mechanical Bending

Silver nanowire (AgNWs) transparent conductive film (TCF) is considered to be the most favorable material to replace indium tin oxide (ITO) as the next-generation transparent conductive film. However, the disadvantages of AgNWs, such as easy oxidation and high wire-wire junction resistance, dramatically limit its commercial application. In this paper, moisture treatment was adopted, and water was dripped on the surface of AgNWs film or breathed on the surface so that the surface was covered with a layer of water vapor. The morphology of silver nanowire mesh nodes is complex, and the curvature is large. According to the capillary condensation theory, water molecules preferentially condense near the geometric surface with significant curvature. The capillary force is generated, making the wire-wire junction of AgNWs mesh bond tightly, resulting in good ohmic contact. The experimental results show that AgNWs-TCF treated by moisture has better conductivity, with an average sheet resistance of 20 Ω/sq and more uniform electrical properties. The bending test and adhesion test showed that AgNWs-TCF treated by moisture still exhibited good mechanical bending resistance and environmental stability.

scholarly journals Formation and Characterization of Various ZnO/SiO2-Stacked Layers for Flexible Micro-Energy Harvesting Devices

2018 ◽  
Vol 8 (7) ◽  
pp. 1127 ◽  
Author(s):  
Chongsei Yoon ◽  
Buil Jeon ◽  
Giwan Yoon
Keyword(s):  
Thin Films ◽  
Energy Harvesting ◽  
Indium Tin Oxide ◽  
Control Sample ◽  
Single Layer ◽  
Rf Magnetron Sputtering ◽  
Device Performance ◽  
Polyethylene Naphthalate ◽  
Flexible Devices ◽  
Energy Harvesting Devices

In this paper, we present a study of various ZnO/SiO2-stacked thin film structures for flexible micro-energy harvesting devices. Two groups of micro-energy harvesting devices, SiO2/ZnO/SiO2 micro-energy generators (SZS-MGs) and ZnO/SiO2/ZnO micro-energy generators (ZSZ-MGs), were fabricated by stacking both SiO2 and ZnO thin films, and the resulting devices were characterized. With a particular interest in the fabrication of flexible devices, all the ZnO and SiO2 thin films were deposited on indium tin oxide (ITO)-coated polyethylene naphthalate (PEN) substrates using a radio frequency (RF) magnetron sputtering technique. The effects of the thickness and/or position of the SiO2 films on the device performance were investigated by observing the variations of output voltage in comparison with that of a control sample. As a result, compared to the ZnO single-layer device, all the ZSZ-MGs showed much better output voltages, while all the SZS-MG showed only slightly better output voltages. Among the ZSZ-MGs, the highest output voltages were obtained from the ZSZ-MGs where the SiO2 thin films were deposited using a deposition power of 150 W. Overall, the device performance seems to depend significantly on the position as well as the thickness of the SiO2 thin films in the ZnO/SiO2-stacked multilayer structures, in addition to the processing conditions.

Highresolution Defect Inspection for Transparent Indiumtinoxide Conductive Film

2016 ◽  
Vol 45 (2) ◽  
pp. 212004
Author(s):  
陈方涵 CHEN Fanghan ◽  
赵光宇 ZHAO Guangyu ◽  
蒋仕龙 JIANG Shilong ◽  
彭文达 PENG Wenda
Keyword(s):  
High Resolution ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Defect Inspection ◽  
Conductive Film

Optical and electrical properties and simulation curves of NiO/Al/NiO transparent conductive film

2019 ◽  
Vol 33 (01) ◽  
pp. 1850417 ◽  
Author(s):  
Shuyun Wang ◽  
Kailin Wen ◽  
Yang Sun ◽  
Xianwu Xiu ◽  
Shuyun Teng ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Metal Film ◽  
Room Temperature ◽  
Optical And Electrical Properties ◽  
Light Wavelength ◽  
Conductive Films ◽  
Conductive Film ◽  
Average Transmittance ◽  
Interface Characteristics ◽  
Experimental Data Analysis

In this paper, NiO/Al/NiO transparent conductive films were prepared by magnetron sputtering at the room temperature. Effects of the NiO and Al layers thicknesses on the optical and electrical properties of the NiO/Al/NiO laminated films were analyzed. When the light wavelength falls in range 300–900 nm, with the increase of the NiO and Al layers thicknesses, the transmittance of the laminated film first increases significantly and then decreases slightly, finally tends to be stable. The laminated film obtained the best optical and electrical properties when the NiO layer is 40 nm and the Al layer is 12 nm. The maximum transmittance is 83%, the average transmittance is 77.3%, the film resistivity is [Formula: see text] and the carrier concentration is [Formula: see text]. At the same time, the transmittance of laminated film is simulated by FDTD software. But the simulation curve is different from the experimental data. Analysis results show that, with the NiO dielectric is added on both sides of the metal Al film, the light reflection characteristic of laminated film has been completely different from that of the single Al metal film because of the change of interface characteristics between Al film and NiO film, and the actual luminous transmittance greatly increases.

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