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Showing result 1 - 5 of 74 swedish dissertations matching the above criteria.

  2. 1. Enabling technologies for scalable graphene electronics

    Author : Naveen Shetty; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; edge contact; Hall effect; graphene; 2d-tech; array; 1 f; metrology;

    Abstract : This thesis addresses the challenges in scaling up graphene-based technologies, with a focus on the epitaxial growth of graphene (epigraphene) over SiC substrates and the establishment of reliable low-contact resistance electrical contacts. The scalable graphene growth and contact fabrication have enabled the development of three epigraphene-based devices, including large-scale Quantum Hall Arrays, highly sensitive Hall effect magnetometers with minimal noise, and quantum-limited ultraviolet (UV) detectors. READ MORE

  4. 2. Integrated Cellulosic Wood Aerogel Structures

    Author : Jonas Garemark; Yuanyuan Li; Lars Berglund; Gustav Nyström; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Aerogel; cellulose; energy harvesting; ionic liquids; nanotechnology; wood; thermal insulation; Fiber- och polymervetenskap; Fibre and Polymer Science;

    Abstract : Highly porous aerogels based on renewable materials that possess structural functionality are appealing for sustainable energy regulation and harvesting. Achieving structural anisotropy provides advantageous directional diffusion and mechanical strength, however, introduces great engineering challenges, such as complex, costly, and time-consuming processing. READ MORE

  5. 3. On the development of a maintenance approach for factory of the future implementing Industry 4.0

    Author : Hatem Algabroun; Basim Al-Najjar; Anders Ingwald; Girma Kifetew; Linnéuniversitetet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; cost-effective maintenance; failure impact; Maintenance 4.0; maintenance for Industry 4.0; maintenance framework; prioritize failures; Byggteknik; Civil engineering;

    Abstract : The objective of this thesis is to develop a maintenance approach that fulfills the requirements of Industry 4.0. It explores the role and importance of maintenance activities in today’s industry. Then, it develops the features and tasks required to be performed by maintenance to fulfill the demands of Industry 4. READ MORE

  6. 4. Functionalization and Characterization of Carbon Based Nanomaterials for Electronics, Composite and Biomedical Applications

    Author : Nan Wang; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; carbon nanomaterials; flexible electronics; hybrid nanowires; functionalization; graphene;

    Abstract : Surface functionalization of nanomaterials to combine different material’s properties together opens up unlimited possibilities for both academic research and industrial applications. In this thesis, flexible and scalable chemical approaches to functionalize carbon nanomaterials (CNMs) are developed for different applications, including electronics, composite and biomedical applications. READ MORE

  7. 5. Xyloglucan-based polymers and nanocomposites – modification, properties and barrier film applications

    Author : Joby Kochumalayil Jose; Lars Berglund; José M. Kenny; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; xyloglucan; packaging; oxygen barrier; nanocomposites;

    Abstract : Biopolymers from renewable resources are of interest for packaging applications as an alternative to conventional petroleum-based polymers. One of the major application areas for biopolymers is food packaging, where a candidate polymer should meet critical requirements such as mechanical and oxygen barrier performance, also in humid conditions. READ MORE