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논문 기본 정보

자료유형
학술저널
저자정보
Mohammed H. Abbas (University of Babylon) Hamed Ibrahim (Al-Zahraa University for Women) Ahmed Hashim (University of Babylon) Aseel Hadi (University of Babylon)
저널정보
한국전기전자재료학회 Transactions on Electrical and Electronic Materials Transactions on Electrical and Electronic Materials Vol.25 No.4
발행연도
2024.8
수록면
449 - 457 (9page)
DOI
https://doi.org/10.1007/s42341-024-00524-5

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Cobalt-based ferrite nanocomposites have been envisioned as the most promising materials to be utilized in various optical and electronic devices, including transistors, electronic gates, and photovoltaic cells. Here, a casting method is used to fabricate polystyrene/cobalt ferrite (PS/CoFe2 O4 ) nanocomposite fi lms (NFs) with diff erent CoFe2 O4 nanoparticle contents (0-6.3 wt%), followed by characterizing their chemical, microstructural, optical, and dielectric properties. The absorbance of PS/CoFe2 O4 NFs increases to 70% and the transmittance decreases to 75% at a wavelength of λ = 580 nm when the CoFe2 O4 content increases to 6.3 wt%. Moreover, the absorption coeffi cient increases from 378 cm -1 for pure PS to 630 cm -1 for NFs with CoFe2 O4 content of 6.3 wt% at a photon energy of 4.44 eV. The energy gap of allowed and forbidden indirect transitions is reduced from 3.3 to 2.4 eV and 3.2 to 2 eV when the nanoparticle content increases from 0 to 6.3 wt%. Mean while, the extinction coeffi cient and refractive index show increasing trends at λ = 880 nm, increasing from 0.5 × 10 -3 to 2 × 10 -3 and 1.8 to 2.5, respectively. It is found that the real and imaginary parts of the dielectric constant are enhanced with increasing the CoFe 2 O 4 content.The results of AC electrical properties indicate that the corresponding electrical conductivity and dielectric constant increase by about 58% and 35% with the increase in the CoFe 2 O 4 content at a frequency of 100 Hz. Therefore, the PS/CoFe2 O4 NFsmay pave the way for potential applications in nanoelectronics and nanodevices.

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