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Showing result 6 - 10 of 70 essays matching the above criteria.

  1. 6. Birch leaf carbon dots: characterization and application in a light-emitting electrochemical cell

    University essay from Umeå universitet/Institutionen för fysik

    Author : Märta Gregorsson; [2022]
    Keywords : carbonized polymer dot; carbon dots; light-emitting electrochemical cell; pheophytin; solid-state luminescence; self-quenching; aggregation-caused-quenching; host-guest system;

    Abstract : A new rising star in the carbon nanomaterial family is carbon dots. Carbon dots have received great attention due to their excellent luminescence and low toxicity. In this project, a new carbon dot derived from birch leaves is studied and characterized. READ MORE

  3. 7. Carbon-coated Lead Halide Perovskite Quantum Dots and Copper(I)Iodide Coated Copper Nanowire Electrodes for Flexible Solar Cells

    University essay from KTH/Tillämpad fysik

    Author : Albin Andersson; [2022]
    Keywords : Nanotechnology; solar cells; perovskite; quantum dots; nanowire; thin film electrodes; nanoteknologi; solceller; perovskit; kvantprickar; nanotrådar;

    Abstract : Lead Halide Perovskite is emerging quickly as a promising material for the future solar cellsthanks to their inherent good optoelectrical properties along with their cheap and facile fabri-cation. However, their main drawback before commercialization is their weak stability. READ MORE

  4. 8. Optimization and Characterization of Luminescent Materials for the ESS Proton Beam Imaging System

    University essay from Lunds universitet/Centrum för analys och syntes

    Author : Emelie Wiklund; Anton Järild; [2021]
    Keywords : Chemical Engineering; Luminescent materials; Cr-doped Alumina; Proton Beam Imaging System; ESS; Chemistry; Technology and Engineering;

    Abstract : Spallation sources such as European Spallation Source (ESS) produces neutrons by bombarding high-energy protons onto the target wheel. To determine the location of the proton beam a Proton Beam Imaging (PBI) system will be installed. READ MORE

  5. 9. Reactivity and photochemistry of copper halide complexes

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Needa Athitaya Wicksell Chuainukun; [2021]
    Keywords : Photochemistry; Copper iodide complexes; Substituted pyridines; Thin films; Luminescence lifetime;

    Abstract : This paper deals with 3-picoline, 4-picoline, 3,4-lutidine and 3,5-lutidine complexes of copper(I) iodide (CuI(3-pic), CuI(4-pic), CuI(3,4-lut) and (CuI(3,5-lut)). The experimental investigation was divided into several parts. Firstly, the synthesis and characterization of the compounds both as powder and as thin films. READ MORE

  6. 10. Characterization of as prepared and exposed Perovskitesolar cells by microscopic and spectroscopic techniques

    University essay from Högskolan Dalarna/Institutionen för information och teknik

    Author : Nagaraju Gorella; [2021]
    Keywords : Perovskites; Solar Cell; SEM; AFM; c-AFM; Photoluminescence; Electroluminescence; Solar simulator.;

    Abstract : Studying the microstructural features, optical, and electrical properties of the thin-filmperovskite solar cells (PSC) is the main objective of this thesis work. All the PSCs used in thisthesis work were prepared by spin coating assisted with gas quenching process and the samplesreceived from Interuniversity Microelectronics Centre (IMEC), Belgium. READ MORE