دورية أكاديمية
أعرض في EDS

Polymer Composites with 0.98 Transparencies and Small Optical Energy Band Gap Using a Promising Green Methodology: Structural and Optical Properties.

التفاصيل البيبلوغرافية
العنوان: Polymer Composites with 0.98 Transparencies and Small Optical Energy Band Gap Using a Promising Green Methodology: Structural and Optical Properties.
المؤلفون: Nofal MM; Department of Mathematics and General Sciences, Prince Sultan University, P.O. Box 66833, Riyadh 11586, Saudi Arabia., Aziz SB; Hameed Majid Advanced Polymeric Materials Research Laboratory, Physics Department, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani 46001, Kurdistan Regional Government, Iraq.; Department of Civil Engineering, College of Engineering, Komar University of Science and Technology, Sulaimani 46001, Kurdistan Regional Government, Iraq., Hadi JM; Department of Medical Laboratory of Science, College of Health Sciences, University of Human Development, Sulaimani 46001, Kurdistan Regional Government, Iraq., Karim WO; Chemistry Department, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani 46001, Kurdistan Regional Government, Iraq., Dannoun EMA; Associate Director of General Science Department, Woman Campus, Prince Sultan University, P.O. Box 66833, Riyadh 11586, Saudi Arabia., Hussein AM; Hameed Majid Advanced Polymeric Materials Research Laboratory, Physics Department, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani 46001, Kurdistan Regional Government, Iraq., Hussen SA; Hameed Majid Advanced Polymeric Materials Research Laboratory, Physics Department, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani 46001, Kurdistan Regional Government, Iraq.
المصدر: Polymers [Polymers (Basel)] 2021 May 19; Vol. 13 (10). Date of Electronic Publication: 2021 May 19.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: MDPI Country of Publication: Switzerland NLM ID: 101545357 Publication Model: Electronic Cited Medium: Internet ISSN: 2073-4360 (Electronic) Linking ISSN: 20734360 NLM ISO Abbreviation: Polymers (Basel) Subsets: PubMed not MEDLINE
أسماء مطبوعة: Original Publication: Basel : MDPI
مستخلص: In this work, a green approach was implemented to prepare polymer composites using polyvinyl alcohol polymer and the extract of black tea leaves (polyphenols) in a complex form with Co 2+ ions. A range of techniques was used to characterize the Co 2+ complex and polymer composite, such as Ultraviolet-visible (UV-Visible) spectroscopy, Fourier transform infrared spectroscopy (FTIR), and X-ray diffraction (XRD). The optical parameters of absorption edge, refractive index ( n ), dielectric properties including real and imaginary parts ( ε r , and ε i ) were also investigated. The FRIR and XRD spectra were used to examine the compatibility between the PVA polymer and Co 2+ -polyphenol complex. The extent of interaction was evidenced from the shifts and change in the intensity of the peaks. The relatively wide amorphous phase in PVA polymer increased upon insertion of the Co 2+ -polyphenol complex. The amorphous character of the Co 2+ complex was emphasized with the appearance of a hump in the XRD pattern. From UV-Visible spectroscopy, the optical properties, such as absorption edge, refractive index ( n ), ( ε r ), ( ε i ), and bandgap energy ( E g ) of parent PVA and composite films were specified. The E g of PVA was lowered from 5.8 to 1.82 eV upon addition of 45 mL of Co 2+ -polyphenol complex. The N/m* was calculated from the optical dielectric function. Ultimately, various types of electronic transitions within the polymer composites were specified using Tauc's method. The direct bandgap (DBG) treatment of polymer composites with a developed amorphous phase is fundamental for commercialization in optoelectronic devices.
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فهرسة مساهمة: Keywords: UV-vis study; XRD and FTIR; bandgap study; localized density of state; metal complex; small bandgap PVA composites
تواريخ الأحداث: Date Created: 20210602 Latest Revision: 20240402
رمز التحديث: 20240402
مُعرف محوري في PubMed: PMC8159149
DOI: 10.3390/polym13101648
PMID: 34069445
قاعدة البيانات: MEDLINE
الوصف
تدمد:2073-4360
DOI:10.3390/polym13101648