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In this work, silver nanowires (AgNWs) printed on a PET substrate using a bar coater were welded via selective wavelength plasmonic flash light irradiation. To achieve high electrical conductivity and transparent characteristics, the wavelength of the flash white light was selectively chosen and irradiated by using high-pass filters, low-pass filters, and band-pass filters. The flash white light irradiation conditions such as on-time, off-time, and number of pulses were also optimized. The wavelength range (400~500 nm) corresponding to the plasmonic wavelength of the AgNW could efficiently weld the AgNW films and enhance its conductivity. To carry out in-depth study of the welding phenomena with respect to wavelength, a multi-physics COMSOL simulation was conducted. The welded AgNW films under selective plasmonic flash light welding conditions showed the lowest sheet resistance (51.275 Ω/sq), and noteworthy transmittance (95.3 %). Finally, the AgNW film, which was welded by selective wavelength plasmonic flash light with optical filters, was successfully used to make a large area transparent heat film and dye-sensitized solar cells (DSSCs) showing superior performances.
This article was published in the following journal.
Name: ACS applied materials & interfaces
Spontaneous and Selective Nano-Welding of Silver Nanowires by Electrochemical Ostwald Ripening and High Electrostatic Potential at the Junctions for High-Performance Stretchable Transparent Electrodes.
Metal nanowires have been gaining increasing attention as the most promising stretchable transparent electrodes for emerging field of stretchable optoelectronic devices.Nano-welding technology is a ma...
Reducing the diameter of silver nanowires has been proven an effective way to improve their optoelectronic performance by lessening light attenuation. The state-of-the-art silver nanowires are typical...
A precision photoreduction technology for ultrafast high-precision light-controlled growth of silver nanoparticles so as to printing of plasmonic colour images is presented. Ultraviolet (UV) patterns ...
A solution processed metal nanowire network is a promising flexible transparent electrode to replace brittle metal oxides for printable optoelectronics applications, but suffers from the issue of pseu...
Effective light trapping at the nanoscale is vital for efficient photoelectrochemical (PEC) applications. Photonic and plasmonic resonators are the two most promising approaches for this purpose, and ...
The purpose of this investigation is to study the effectiveness of longer wavelength UVA1 (340-400nm) or shorter wavelength ultraviolet B [UVB] (290-320nm) irradiation in the treatment of ...
Treatment of neonatal jaundice is phototherapy with blue light at wavelength about 460 nm and irradiance > 30 uw/cm2/nm. Though, recent in vitro models have suggested that a wavelength of ...
- Determine the impact and the threshold of long wavelength UVA and visible light on immediate and delayed pigment production of melanocompetent individuals. - The study basicall...
The laser tissue welding device is intended for use in patients requiring sealing of the pancreas after partial pancreatectomy, and including those patients who are fully heparinized or ha...
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Tunable liquid lasers with organic compounds (i.e., dye) which have a strong absorption band, used as the active medium. During emission, the dye has to be optically excited by another light source (e.g., another laser or flash lamp). The range of the emission wavelength may be anywhere from the ultraviolet to the near infrared (i.e., from 180 to 1100nm). These lasers are operated in continuous wave and pulsed modes. (UMDNS, 2005)
A technique used to measure the rate of physiological activity plotted against wavelength of light. An action spectrum depicts the most effective wavelength of light (also known as spectral sensitivity) that is required for each specific process.
The use of silver, usually silver nitrate, as a reagent for producing contrast or coloration in tissue specimens.
A microscopic imaging technique that takes advantage of the process of harmonic generation that occurs when photons interact to generate new photons of a different wavelength. In second harmonic generation, two photons of the same wavelength and frequency, such as from a LASER, interact inside a medium and are converted to a photon of twice the frequency and half of the wavelength of the two incident photons. The light signals captured are used to produce images that are dependent on the unique optical properties of the material.
Light sources used to activate polymerization light-cured orthodontic adhesives (DENTAL CEMENTS). Degree of cure and bond strength depends on exposure time, wavelength, and intensity of the curing light.