Nanosecond pulsed laser sintering of carbon nanotube – Silver nanocomposite thin films on a flexible substrate: In-situ temperature measurements and post-process characterizations
نویسندگان
چکیده
Cracks could be induced in metallic components of flexible electronics due to repeated large deformations during their service. This affect reliability and durability, which may potentially enhanced by replacing the metal with a nanocomposite reinforced carbon nanotubes (CNTs). Such thin films can fabricated onto substrate via laser sintering nanoparticles (NPs) CNTs, is fabrication method several potential advantages. Despite previous studies authors on continuous-wave (CW) sintering, systematic experimental study film pulsed has been seldomly reported paper best knowledge authors'. current nanosecond (ns) pulse CNT-reinforced silver matrix thin-film lines polyimide. Both in-process time-resolved measurements temperatures post-process characterizations are performed. For studied conditions, it discovered that same spot scanning speed time-averaged power, 100 kHz pulses produce much lower electrical resistivity than 25 kHz. The fundamental mechanism revealed through in-situ temperatures. It expected related pulse-to-pulse heat accumulation effect generated repetition rate, leading melt pool more continuous time longer lifetime. found given average an optimum exists, leads minimum sintered nanocomposite. At corresponding speeds compared CW ns similar (slightly smaller) narrower widths at faster speed. An interesting “two-region” phenomenon sintering. Its analyzed, surface vaporization-induced recoil pressure
منابع مشابه
Substrate temperature effects on laser crystallized NiTi thin films
Amorphous sputter-deposited NiTi thin films were subjected to pulsed, melt-mediated laser crystallization techniques to engineer their microstructure. The effects of laser processing of preheated films are examined. Laser processing of films at an elevated substrate temperature has a significant effect on the rate with which solidification occurs. It is observed that the preheating temperature ...
متن کاملFabrication and optical characterizations of smooth silver-silica nanocomposite films
We have studied the surface-smoothing effect of an ultrathin germanium (Ge) layer on silver (Ag)-silica (SiO2) nanocomposite films for superlensing applications. Our experimental results indicate that inserting a thin Ge layer below the silver-silica composite films can reduce the final surface root-mean-squared (RMS) roughness to under 1 nm. Additionally, the metal nanostructure plays a role i...
متن کاملLaser processing of polymer nanocomposite thin films
Current biotechnology and sensor research has enhanced the drive to establish viable methods for depositing high-quality polymer thin films. In this research, thin films of poly methyl methacrylate PMMA were prepared by matrix-assisted pulsed-laser evaporation MAPLE . Up to 2 wt % of carbon nanotubes were subsequently added to MAPLE target systems for deposition of polymer nanocomposite films. ...
متن کاملAntimicrobial Properties of Diamond-Like Carbon/Silver Nanocomposite Thin Films Deposited on Textiles: Towards Smart Bandages
In the current work, a new antibacterial bandage was proposed where diamond-like carbon with silver nanoparticle (DLC:Ag)-coated synthetic silk tissue was used as a building block. The DLC:Ag structure, the dimensions of nanoparticles, the silver concentration and the silver ion release were studied systematically employing scanning electron microscopy, energy dispersive X-ray spectroscopy and ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Manufacturing Processes
سال: 2022
ISSN: ['1526-6125', '2212-4616']
DOI: https://doi.org/10.1016/j.jmapro.2022.04.009