Sökning: "ion beam lithography"

Visar resultat 21 - 25 av 32 avhandlingar innehållade orden ion beam lithography.

  1. 21. Nanofabrication of Zone Plates for Hard X-Ray Free-Electron Lasers

    Författare :Fredrik Uhlén; Ulrich Vogt; Thomas Wilhein; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; X-ray optics; Zone plates; Nanofabrication; X-ray free-electron lasers; Fysik; Physics;

    Sammanfattning : This Thesis describes the development of hard X-ray zone plates intended for focusing radiation at X-ray free-electron lasers (XFELs). XFELs provide unprecedented brightness and zone plates which are put in the intense X-ray beam are at risk of being damaged. LÄS MER

  3. 22. Polymer brush functionalised nanopore sensors

    Författare :Julia Järlebark; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; polymer brushes; nanopore sensing; nanofabrication;

    Sammanfattning : Single-molecule studies on proteins could reveal a lot of information about their conformational dynamics, and processes such as misfolding and aggregation. This knowledge is valuable in providing a deeper understanding of molecular biology, and for understanding the link between proteins and various diseases. LÄS MER

  4. 23. Silicon Nanowires for Biomolecule Detection

    Författare :Niklas Elfström; Jan Linnros; Mark Reed; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Material physics with surface physics; Materialfysik med ytfysik;

    Sammanfattning : Starting from silicon on insulator (SOI) material, with a top silicon layer thickness of 100 nm, silicon nanowires were fabricated in a top down approach using electron beam (e-beam) lithography and subsequent eactive ion etching (RIE) and oxidation. Nanowires as narrow as 30 nm could be achieved. LÄS MER

  5. 24. Semiconductor Nanoelectronic Devices Based on Ballistic and Quantum Effects

    Författare :Jie Sun; Fasta tillståndets fysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Semiconductor; Quantum Dots; Ballistic Transport; InGaAs InP 2DEG; Nanoelectronics;

    Sammanfattning : As current silicon-based microelectronic devices and circuits are approaching their fundamental limits, the research field of nanoelectronics is emerging worldwide. With this background, the present thesis focuses on semiconductor nanoelectronic devices based on ballistic and quantum effects. The main material studied was a modulation doped In0. LÄS MER

  7. 25. Growth, processing and characterization of group IV materials for thermoelectric applications

    Författare :Mohammad Noroozi; Muhammet .S Toprak; Henry .H Radamson; Raşit Turan; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Thermoelectric; SiGe; GeSn Si ; Chemical vapor deposition; Nanowires; Fysik; Physics;

    Sammanfattning : Discover of new energy sources and solutions are one of the important global issues nowadays, which has a big impact on economy as well as environment. One of the methods to help to mitigate this issue is to recover wasted heat, which is produced in large quantities by the industry, through vehicle exhausts and in many other situations where we consume energy. LÄS MER