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논문 기본 정보

자료유형
학술저널
저자정보
Rasheed N. Abed (Al-Nahrain University) Mohammed Kadhom (College of Energy and Environmental Sciences) D. S. Ahmed (Al-Mansour University College) A. Hadawey (London South Bank University) Emad Yousif (Al-Nahrain University)
저널정보
한국전기전자재료학회 Transactions on Electrical and Electronic Materials Transactions on Electrical and Electronic Materials 제22권 제3호
발행연도
2021.1
수록면
317 - 327 (11page)

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In this work, a novel grafting of chromium (III) oxide Cr 2 O 3 nanoparticles (NPs) within polyvinyl chloride (PVC) was conducted to obtain high conductivity and stability toward the light absorption for the polymer. The optical properties of pure and doped PVC thin films were investigated with different content to embed chromium (III) oxide. The measurements of spectrophotometer reflectance in the wavelengths range of 250?1300 nm and UV?Visible in the wavelengths range of 200?800 nm were reported. Adding 0.05 g of Cr 2 O 3 NPs leaded to improve all the optical properties of PVC?Cr 2 O 3 fi lms. The optical features calculations were determined, namely absorbance, refl ectance, transmittance, extinction coefficient, refractive index, optical density, real and imaginary of dielectric constant, direct and indirect energy gaps, Urbach energy, and optical conductivity. Two Schiff bases were synthesized and used for doping, identified as a, and b. The energy gaps of modifi ed PVC fi lms were calculated and found to decrease from 5.5 eV of pure PVC to 2.4 and 3.2 eV for a and b samples, respectively, in the direct allowed transition. In the indirect allowed transition, lower values were obtained, where the pure PVC gab was 4.2 eV and decreased to 1.75 and 3.3 eV for a and b, respectively. The Urbach band tail was also computed for thin films and concluded in a table. For our best knowledge, doping Cr 2 O 3 NPs in the PVC is firstly reported here, which aimed to reinforced the polymer and reduced its energy gap. The results detected that the photostability of doped PVC is better than the pure PVC.

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