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.

Indium Tin Oxide (ITO) Film Removal Technique for Failure Analysis on Packaged Optoelectronic Devices

2003 ◽  
Author(s):  
Shawn Elliott ◽  
Jean Gordon ◽  
Peter Plourde
Keyword(s):  
Failure Analysis ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Argon Gas ◽  
Electrical Failure ◽  
Glass Substrates ◽  
Ito Film ◽  
Conductive Film ◽  
Aluminum Metallization ◽  
Removal Technique

Abstract Various detector chips in optocoupler devices have a thin indium tin oxide (ITO) film deposited over the passivation. This transparent, conductive film is found over the photodetecting area of the die. When this film is electrically connected to ground potential through contacts, it acts as a shield to avoid inversion failures by sinking any charge buildup to ground. In order to perform a full electrical failure analysis on these optocoupler detector chips, the ITO layer must be removed. An extensive search found numerous papers on etching this film over glass substrates, but no known technique was found to selectively remove the ITO layer on a packaged die. This paper discusses an approach to remove this film using an argon gas etch technique. The ideal characteristics of any process used to remove this film on a finished die would be to completely etch the ITO layer, electrically isolating it from ground, while leaving the underlying passivation and metallization fully intact. This would allow for further electrical failure analysis of the die without causing additional damage or affecting the failure mechanism. The results of an experiment using various chemical and gas etchants found that an argon gas etch would remove the ITO layer while only slightly etching the phosphosilicate glass (PSG) passivation beneath. Electrical failure analysis of the die continued at this point, and a subsequent buffered oxide etch (BOE) removed the remaining passivation, leaving the exposed metallization and oxide completely intact. This technique has been used successfully on device failures to find passivation contamination shorting the aluminum metallization to the ITO film.

The Production of ITO Transparent Conductive Materials and the Development Prospect in the Field of Biological Information

2014 ◽  
Vol 597 ◽  
pp. 188-191 ◽  
Author(s):  
Jing Jing Liu ◽  
Hong Men ◽  
Qing Tian Zheng ◽  
Wei Kang Jiang ◽  
Hong Hui Gao ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Biological Information ◽  
Information Collection ◽  
Rigid Substrate ◽  
Biological Detection ◽  
Substrate Preparation ◽  
Conductive Materials ◽  
Conductive Film

The transparent conductive film made of Indium Tin Oxide (ITO) is widely used in many fields because of its excellent electrical conductivity and optical properties. At present, the information in biological detection field has not satisfied the people's needs, which are obtained based on some kind of sensors with traditional rigid substrate preparation. The contact surface for creatures perceive and stimulation are flexible surfaces. The kinds of electrode with ITO conductive film as the base for electrode preparation have a great application prospect in biological information collection.

scholarly journals Electrical Conductivity Measurement of Transparent Conductive Films Based on Carbon Nanoparticles

Coatings ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 499
Author(s):  
Sedong Kim ◽  
Hyomin Jeong ◽  
Soon-Ho Choi ◽  
Ji-Tae Park
Keyword(s):  
Electrical Conductivity ◽  
Composite Materials ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Composite Structures ◽  
Conductivity Measurement ◽  
Electrical Conductivity Measurement ◽  
Transparent Conductive Films ◽  
Conductive Films ◽  
Flexible Films

Transparent conductive films are fundamental materials, currently used in several fields. Recently, due to their unique multifunctional properties, composite materials have started to be used in place of fluorine tin oxide and indium tin oxide in transparent conductive electrodes. However, the production of composite materials is still complicated and involves toxic chemicals. Through a simple and environmentally-friendly method, we synthesized new composite materials—conductive, transparent, and flexible films—that can be applied to the production of modern optoelectronic devices. An even dispersion of the nanoparticles was achieved by ultrasound excitation. Moreover, a series of morphological and structural investigations were conducted on the films by scanning and transmission electron microscopy, electrical conductivity, Raman spectroscopy, X-ray diffraction and testing their sheet resistance. The results indicated that the tested composite materials were ideal for film coating. The nanofluids containing multi-walled carbon nanotubes presented the highest electrical conductivity; nevertheless, all the composite nanofluids tended to have relatively high electrical conductivities. The flexible films with composite structures presented lower sheet resistances than those with single structures. Finally, the hybrid materials showed a higher transmittance.

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 Near-IR transparent conductive amorphous tungsten oxide thin layers by non-reactive radio-frequency magnetron sputtering

2021 ◽  
Vol 255 ◽  
pp. 05003
Author(s):  
Hao Chen ◽  
Alessandro Chiasera ◽  
Cristina Armellini ◽  
Giorgio Speranza ◽  
Stefano Varas ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Figure Of Merit ◽  
Rf Sputtering ◽  
Thin Layers ◽  
Radio Frequency Magnetron Sputtering ◽  
Amorphous Thin Films ◽  
Near Ir ◽  
Electric Contacts

Key assets for transparent electric contacts in optoelectronic applications are high conductivity and large transparency over extended spectral range. Indium-Tin-Oxide and Aluminium-doped-Zinc-oxide are commercial examples, with their electrical conductivity resembling those of metals, despite, their transparency being limited up to 1.5µm. This work introduces smooth and compact amorphous thin films of n-type semiconducting WO3-x prepared by RF-sputtering followed by annealing in dry air, as optical layers of tailorable dielectric properties. We evaluate Figure of Merit, combining electrical conductivity and optical transparency, and rate the performances as a transparent conductive layer.

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

Flexible two-dimensional indium tin oxide fabricated using a liquid metal printing technique

2020 ◽  
Vol 3 (1) ◽  
pp. 51-58 ◽  
Author(s):  
Robi S. Datta ◽  
Nitu Syed ◽  
Ali Zavabeti ◽  
Azmira Jannat ◽  
Md Mohiuddin ◽  
...  
Keyword(s):  
Liquid Metal ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Two Dimensional ◽  
Metal Printing ◽  
Printing Technique

Impact of Preferential Indium Nucleation on Electrical Conductivity of Vapor–Liquid–Solid Grown Indium–Tin Oxide Nanowires

2013 ◽  
Vol 135 (18) ◽  
pp. 7033-7038 ◽  
Author(s):  
Gang Meng ◽  
Takeshi Yanagida ◽  
Kazuki Nagashima ◽  
Hideto Yoshida ◽  
Masaki Kanai ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Vapor Liquid Solid ◽  
Oxide Nanowires ◽  
Vapor Liquid
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