Sökning: "Graphene Quantum Dots"

Visar resultat 1 - 5 av 6 uppsatser innehållade orden Graphene Quantum Dots.

  1. 1. Fano Resonances in Time-Dependent Wells

    L3-uppsats, Uppsala universitet/Materialteori

    Författare :Anton Gregefalk; [2023]
    Nyckelord :Fano resonance; Floquet scattering; Pumped shot-noise; Linear band tilt; Quadratic band touching; Time periodic Hamiltonian;

    Sammanfattning : Floquet’s theorem, a temporal analogue of Bloch’s theorem, is used for studying a time-dependent potential. With applications in cold atoms on optical lattices, quantum dots and more, there is a growing interest in Floquet engineering exotic materials and phases. LÄS MER

  3. 2. Scalable fabrication of High-Rate On-Paper Microsupercapacitors through full inkjet printing

    Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)

    Författare :Zheng Li; [2022]
    Nyckelord :Inkjet printing; graphene; graphene quantum dots; on-paper Microsupercapacitor; energy storage device; Bläckstråleskrivning; grafen; grafen kvantprickar; mikrosuperkondensator på papper; energilagringsanordning;

    Sammanfattning : storage devices in micro sizes are receiving more and more attention. One of them, on-paper Microsupercapacitors (MSCs), has become a key energy storage device because of its good mechanical flexibility and high power density. LÄS MER

  4. 3. Graphene Quantum Dots as Fluorescent and Passivation Agents for Multimodal Bioimaging

    Master-uppsats, KTH/Tillämpad fysik

    Författare :Nüzhet Inci Kilic; [2021]
    Nyckelord :graphene quantum dots; hybrid nanoparticles; x-ray fluorescence contrast agents; multimodal bioimaging; grafen-kvantprickar; hybrida nanopartiklarna; multimodal bioavbildning; röntgenfluorescens kontrastmedel;

    Sammanfattning : Zero-dimensional graphene (carbon) quantum dots have been drawing attention in bio-related applications since their discovery, especially for their optical properties, chemical stability, and easily modifiable surface.  This thesis focuses on the green synthesis of nitrogen-doped graphene quantum dots (GQDs) for dual-mode bioimaging with X-ray fluorescence (XRF) and optical fluorescence. LÄS MER

  5. 4. Detection of Amphetamine with Graphene Quantum Dots

    Master-uppsats, KTH/Tillämpad fysik

    Författare :Carl Fredrik Åslund; [2021]
    Nyckelord :Graphene quantum Dots; Amphetamine; Sensor; GQD; Grafen kvantprickar; Amfetamin; Sensor; GQD;

    Sammanfattning : Amphetamine abuse is an enduring problem in many developed nations, including Sweden. It causes lasting damage both to its users and in the form of increased strain on healthcare services. It is therefore critical that police be equipped with the tools necessary to rapidly and accurately identify any samples in order to combat this scourge. LÄS MER

  7. 5. The use of graphene quantum dots as detection elements in nanomaterials-based sensors for forensic applications

    Master-uppsats, KTH/Tillämpad fysik

    Författare :Xiaofan Ma; [2021]
    Nyckelord :Graphene Quantum Dots; Amphetamine; Cocaine; Chemical Sensor; Forensic Drugs; Grafenkvantprickar; amfetamin; kokain; kemisk sensor; rättsmedicinska läkemedel;

    Sammanfattning : The large-scale abuse and addiction of narcotics such as amphetamine and cocaine have become a global problem. In this project, we innovatively use graphene quantum dots (GQDs) as a fluorescent sensor to detect and quantify amphetamine and cocaine. This technology will have broad forensic application prospects. LÄS MER