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Investigation of complex hybrids in lithium salt under ultraviolet energy source

Journal of Materials Science: Materials in Electronics(2024)

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摘要
A simple approach was employed to fabricate hybrid titanium dioxide (TiO 2 ) nanoparticles and poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) embedded with lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) and carbon quantum dots (CQDs) on a p-type of silicon (p-Si) substrate by utilizing the drop-casting method. The structural analysis was conducted using Raman spectroscopy. A UV radiation source with a wavelength of 365 nm and an intensity of 200 mW cm −2 was utilized to observe the alteration in conductivity under both illuminated and non-illuminated conditions. The device consisting of TiO 2 /PEDOT:PSS/LiTFSI demonstrated a responsivity of 25.3%, and the response/recovery times were obtained to be 467/577 seconds, respectively. The responsivity of the CQDs:TiO 2 /PEDOT:SS/LiTFSI device was measured to be 22.2%, and the response/recovery times were found to be 300/393 seconds, respectively. The design methodology employed in our approach holds promise for application in the fabrication of different sensors capable of detecting harmful UV rays, which is known to contribute to premature aging, sunburn, cataracts, skin cancer, and a range of other UV-related dermatological conditions.
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