Sökning: "silicon"

Visar resultat 21 - 25 av 1031 avhandlingar innehållade ordet silicon.

  1. 21. Deterministic Silicon Pillar Assemblies and their Photonic Applications

    Författare :Bikash Dev Choudhury; Anand Srinivasan; Harish Bhaskaran; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; nanopillar; nanowires; nanophotonics; nanofabrication; silicon; photovoltaics; second-harmonic generation; top-down approach; colloidal lithography; color filter; biosensor; Fysik; Physics; Teknisk materialvetenskap; Materials Science and Engineering;

    Sammanfattning : It is of paramount importance to our society that the environment, life style, science and amusement flourish together in a balanced way. Some trends in this direction are the increased utilization of renewable energy, like solar photovoltaics; better health care products, for example advanced biosensors; high definition TV or high resolution cameras; and novel scientific tools for better understanding of scientific observations. LÄS MER

  3. 22. Silicon nitride-based integrated components for optical communication

    Författare :Alexander Caut; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mach-Zehnder interferometers; grating couplers; insertion loss; silicon photonics; power splitters; polarization; arrayed waveguide gratings; crosstalk; silicon nitride.;

    Sammanfattning : To follow the trend of the data traffic and to limit the size of the hyperscale data centers, communication solutions offering small footprint, low cost and low power consumption are needed. Optical interconnects used in data centers are mostly short reach (approximately 100 m) based on GaAs-based 850 nm vertical-cavity surface emitting lasers (VCSELs) and OM4 multimode fibers (MMF). LÄS MER

  4. 23. Copper-related light-induced degradation in crystalline silicon

    Författare :Jeanette Lindroos; Hele Savin; Eicke R. Weber; Finland Aalto University; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; copper; degradation; lifetime; nickel; silicon; degradering; kisel; koppar; livstid; nickel;

    Sammanfattning : .... LÄS MER

  5. 24. Silicon δ-doping and GaAs/Si/GaAs heterostructures

    Författare :Jan Thordson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; GaAs Si GaAs; GaAs; delta-doping; heterostructures; MBE; silicon;

    Sammanfattning : .... LÄS MER

  7. 25. Electrical Characterization of Silicon Nanogaps

    Författare :Jonas Berg; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Organic molecules; Molecular electronics; Surface leakage currents; Low-frequency noise; Soft breakdown; TSRAM; Resonant tunneling diodes; Selective etching; Silicon nanogaps; Nanocontacts;

    Sammanfattning : We have designed and manufactured silicon nanogaps aimed at electrically interfacing molecules, utilizing the precision thickness control in an oxidation process. An insulating layer was formed on a silicon wafer, and then polysilicon was deposited on top. LÄS MER