Browsing by Author "LHR TP 9638"

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    Multicomponent Photoluminescence Emission Tuning in Ternary Quantum Dots (TQDs) Via Dopant Interaction
    (Library Information Services, COMSATS University Islamabad, Lahore Campus, 2024) Ayesha Iram; CUI/SP23-RPH-018/LHR; Dr. Faiza Mustafa; LHR TP 9638
    AgInS (AIS) QDs, among TQDs, have enormous potential to replace traditional II–VI QDs due to their long fluorescence lifetimes, significant Stokes shift, low toxicity, high attenuation coefficient, and exceptional optical properties in the visible to near-infrared range. With prolonged use, the combined materials unavoidably showed an undesired shift in spectrum due to their differing optical and UV stability. Thus, it is essential to build single-phase full-spectrum QDs. Single phase full spectrum QDs for the creation of white light have recently been described for Cu and Mn doped TQD base luminescent materials. The structural, optical and electronic properties are analyzed by UV-Visible, XRD, Raman and Photoluminescence spectroscopy. In this research project, AgInS quantum dots has been successfully synthesized by hydrothermal method, Raman spectroscopy results show the vibrational modes of AgInS, Particle size of AgInS(8nm), Cu(8.9nm), Mn(10nm), Cu- Mn(6nm) measured by XRD. Due to its greatest thickness and minimal lattice misfit, AgInS is discovered to have a wide photoluminescence spectrum, which indicates that its photoluminescence intensity has grown and covered all structural faults. Thus, I found that the Cu/Mn-AgInS sample's PL spectrum shows several emission peaks, indicating the existence of different radiative recombination processes.