Search for dissertations about: "Epitaxial regrowth"

Showing result 1 - 5 of 9 swedish dissertations containing the words Epitaxial regrowth.

  2. 1. Metall organic vapour phase epitaxy for advanced III-V devices

    Author : Nils Nordell; Sture Petersson; Gunnar Landgren; Ferdinand Scholz; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Metalorganic vapour phase epitaxy MOVPE ; III-V compound semiconductors; epitaxial uniformity; p-type doping profiles; epitaxial regrowth; chlorine-MOVPE; buried heterostructure laser; heterostructure bipolar transistor; Electrical Engineering; Elektro- och systemteknik;

    Abstract : Metalorganic vapour phase epitaxy (MOVPE) has proven to be a successful method for growth of structures for advanced optoelectronic semiconductor devices in III-V compounds. This thesis deals with technological and process related aspects of MOVPE from an experimental perspective. READ MORE

  4. 2. Design and fabrication of long wavelength vertical cavity lasers on GaAs substrates

    Author : Rickard Marcks von Würtemberg; Mattias Hammar; Markus Amann; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; VCSEL; Selective Area Epitaxy; Epitaxial regrowth; Laser; Semiconductor physics; Halvledarfysik;

    Abstract : Vertical cavity surface emitting lasers (VCSELs) are today a commodity on the short wavelength laser market due to the ease with which they are manufactured. Much effort has in the last decade been directed towards making long wavelength VCSELs as successful in the marketplace. READ MORE

  5. 3. Characterizations of as grown and functionalized epitaxial graphene grown on SiC surfaces

    Author : Chao Xia; Chariya Virojanadara; Lars Hultman; Thomas Seyller; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The superior electronic and mechanical properties of Graphene have promoted graphene to become one of the most promising candidates for next generation of electronic devices. Epitaxial growth of graphene by sublimation of Si from Silicon Carbide (SiC) substrates avoids the hazardous transfer process for large scale fabrication of graphene based electronic devices. READ MORE

  6. 4. New Methods in the growth of InP on Si and Regrowth of Semi-insulating InP for Photonic Devices

    Author : Wondwosen Tilahun Metaferia; Sebastian Lourdudoss; Eric Tournié; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : This thesis addresses new methods in the growth of indium phosphide on silicon for enabling silicon photonics and nano photonics as well as efficient and cost-effective solar cells. It also addresses the renewal of regrowth of semi-insulating indium phosphide for realizing buried heterostructure quantum cascade lasers with high power and wall plug efficiency for sensing applications. READ MORE

  7. 5. Compound semiconductor materials and processing technologies for photonic devices and photonics integration

    Author : Carl Reuterskiöld Hedlund; Mattias Hammar; Mikael Östling; Sebastian Lourdudoss; Harri Lipsanen; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Informations- och kommunikationsteknik; Information and Communication Technology;

    Abstract : The advancement of semiconductor optoelectronics relies extensively on materials and processing technologies of ever-increasing sophistication, such as nanometer-range lithography, epitaxial growth methods with monatomic layer control, and anisotropic etching procedures that allows for the precise sculpturing of device features even in the limit of extreme aspect ratios. However, upcoming application needs puts requirements on optimized designs or device performances, e. READ MORE