Sökning: "Atomic Force Microscope"

Visar resultat 1 - 5 av 20 uppsatser innehållade orden Atomic Force Microscope.

  1. 1. Morphological study of PS/PMMA-matrix on glass, related to vapour pressure, mass-fraction, and size

    Kandidat-uppsats, Karlstads universitet/Institutionen för ingenjörs- och kemivetenskaper (from 2013)

    Författare :Gustav Larsson; [2023]
    Nyckelord :organic solar cells; polymer; morphology; film; AFM;

    Sammanfattning : The objective of this study is to observe how changing amount or ratio between dried mixes of poly-methyl-methacrylate and poly-styrene change the surface appearance, and how the results might inform future design of Organic photovoltaic cells, whom are based on polymer mixtures and heavenly dependent on the arrangement of polymers. An atomic force microscope was used on glass surfaces coated in a poly-methyl-methacrylate/poly-styrene matrix and dried from either dichloromethane or ethyl-acetate to determine surface appearance. LÄS MER

  3. 2. 3D Coating of Interface Materials for High-Performance RF Passive Devices

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

    Författare :Xiner Shen; [2023]
    Nyckelord :Ceramic coating; Dip coating; Radio frequency; Passive RF devices; Quality factor; Keramisk beläggning; Dip-beläggning; Radiofrekvens; Passiva RF-enheter; Kvalitetsfaktor;

    Sammanfattning : The demand for high-performance Radio Frequency (RF) passive devices has been steadily increasing due to the growing complexity and sophistication of wireless communication systems. The Quality factor (Q-factor) is a key parameter for describing the signal losses and the energy efficiency of resonators. LÄS MER

  4. 3. Pipe Surface Roughness at Microscale and Discussion of Possible Relation to Flow Properties

    Master-uppsats, Lunds universitet/Avdelningen för Teknisk vattenresurslära

    Författare :Yiting Qiao; Mahsa Kajbaf Nezhad; [2021]
    Nyckelord :pipe flow; roughness; microscale; SEM; Technology and Engineering;

    Sammanfattning : Despite decades of intense research, the behavior of water molecule still warrants new research.Water flow through various pipe systems has become a pivotal corner stone of functioning human infrastructure. LÄS MER

  5. 4. Relative humidity and moisture impact on décor polyethylene adhesion

    Master-uppsats, Lunds universitet/Centrum för analys och syntes

    Författare :Jonas Bengtsson; [2020]
    Nyckelord :Packaging material; adhesion; polymer technology; polymerteknologi; Technology and Engineering;

    Sammanfattning : Adhesion is the force keeping different materials together. In packaging materials this is important due to the many layers needed to protect its content. Retaining the packaging integrity is necessary to keep the long term storage capabilities of the packaging. LÄS MER

  7. 5. Properties of III-V/Si heterojunction fabricated by HVPE

    Master-uppsats, KTH/Tillämpad fysik

    Författare :Prakhar Bhargava; [2020]
    Nyckelord :;

    Sammanfattning : Silicon is a promising material and is used for a wide range of applications in the electronics industry because of the high quality surface passivation given by the native oxide layer SiO2e. However, Si is not an ideal candidate for optoelectronic applications due to its indirect bandgap of 1. LÄS MER