زانکۆی جیهان ـ سلێمانی سەرجەم ڕێنماییە کارپێکراوەکانی زانکۆیی بەخوێندکارانی قۆناغی یەکەمی هەموو بەشەکان ناساند.
Dr. Sewara J. Mohammed, a lecturer and researcher at Cihan University Sulaymaniyah, recently authored a groundbreaking research article entitled ” Organic soluble nitrogen-doped carbon dots (ONCDs) to reduce the optical band gap of PVC polymer: Breakthrough in polymer composites with improved optical properties.” This significant contribution has been prominently featured by the reputable international publisher Elsevier, specifically in the esteemed Optical Material journal. Optical Material journal boasts an impressive impact factor of 3.9 recognized by both Clarivate and Web of Science.
In this research, the focus was on Polyvinyl chloride (PVC), a commonly used thermoplastic polymer. PVC has limited optical applications due to its large optical band gap. However, the study introduced a novel approach by synthesizing organic soluble nitrogen-doped carbon dots (ONCDs) from 4-aminoantipyrine (4AA) as the precursor. These ONCDs were then employed to significantly reduce the optical band gap of PVC. The addition of ONCDs led to a tuned refractive index, an increase in the optical dielectric constant (ε1), and a low band gap within the range of 1.52–1.78 eV for the PVC/ONCDs films. These findings highlight the improved optical properties of the films and their potential for various optoelectronic applications.
https://www.sciencedirect.com/science/article/abs/pii/S0925346724001915?via%3Dihub
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