Controlled crystallization and engineering of the electro-optical properties of silver oxide nano/micro disks obtained by pulsed laser welding technique
Source abstract
Abstract
Herein, Ag2O films are subjected to the pulsed laser welding (PLW) technique to enhance their crystallinity and expand their application potential. Engineering the pulse energy and pulse width successfully produced Ag2O nano/microdisks ranging in size from 100 to 900 nm. The crystallinity of the disks improved with increasing pulse energy and width. A significant reduction in defect concentration-by more than 61.5%-was achieved at 220 V and a pulse width of 10 ms. Optically, PLW enhanced transmittance and reduced the reflectance in Ag2O films while lowering free carrier absorption. The energy band gap remained unchanged. As broadband antennas, the nano/microdisk-structured films operated effectively within the 2.3-5.1 GHz frequency range and exhibited a bandwidth of 2.8 GHz. They also showed a minimum return loss of - 38 dB at 3.15 GHz, confirming their suitability for mmWave applications.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Electromagnetic wave absorption materials · Plasmonic and Surface Plasmon Research · Gold and Silver Nanoparticles Synthesis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (61)
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