Search for dissertations about: "Light Emission in Silicon"

Showing result 1 - 5 of 33 swedish dissertations containing the words Light Emission in Silicon.

  2. 1. Optical Properties of Single Silicon Quantum Dots

    Author : Federico Pevere; Jan Linnros; Uwe Kortshagen; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; silicon; nanocrystals; quantum dots; photoluminescence; optics; emission; absorption; Fysik; Physics;

    Abstract : For over 60 years silicon (Si) has dominated the semiconductor microelectronics industry mainly due to its abundance and good electrical and material properties. The advanced processing technology of Si has made it the workhorse for photovoltaics industry as well. READ MORE

  4. 2. Deterministic Silicon Pillar Assemblies and their Photonic Applications

    Author : Bikash Dev Choudhury; Anand Srinivasan; Harish Bhaskaran; KTH; []
    Keywords : 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;

    Abstract : 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. READ MORE

  5. 3. Si-based structures for light emission and detection

    Author : Amir Karim; Göran Hansson; Wei-Xin Ni; Tom Gregorkiewicz; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik;

    Abstract : Efforts to improve the optical performance of the indirect bandgap semiconductor silicon (Si) has been a major subject of research in the field of Si photonics due to the promising applications of Si based light emitters and detectors for optical communication. With that motivation three different Si based material systems were investigated; Si:Er/O layered structures, SiGe quantum dots and SiSn nano structures, all grown using the technique of molecular beam epitaxy (MBE). READ MORE

  6. 4. Fabrication and characterization of single luminescing quantum dots from 1D silicon nanostructures

    Author : Benjamin Bruhn; Jan Linnros; Luca Dal Negro; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; silicon; quantum dot; nanocrystal; nanowire; nanostructure; photoluminescence;

    Abstract : Silicon as a mono-crystalline bulk semiconductor is today the predominant material in many integrated electronic and photovoltaic applications. This has not been the case in lighting technology, since due to its indirect bandgap nature bulk silicon is an inherently poor light emitter. READ MORE

  7. 5. Light emitting devices based on silicon nanostructures

    Author : Nenad Lalic; KTH; []
    Keywords : ;

    Abstract : Although silicon is the dominant semiconductor today, lightemitting devices are currently based on compound semiconductorsdue to their direct band-gap, which promotes fast radiativerecombination. However, in nanometer-size silicon structures,carrier confinement enhances the radiative recombination,while, at the same time, suppresses diffusion to non-radiativerecombination centra, resulting in a significant increase inlight emission efficiency. READ MORE