Search for dissertations about: "AlN"

Showing result 1 - 5 of 88 swedish dissertations containing the word AlN.

  1. 1. GaN/AlN Multiple Quantum Well Structures

    Author : Xinju Liu; [2007]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; GaN; AlN; multiple quantum well; Molecular beam epitaxy; Si 111 ; intersubband transition; sapphire; GaN template;

    Abstract : The III-nitride semiconductors: InN, GaN and AlN are promising for photonic, high power and high temperature electronic devices. Their large and direct band gaps cover the range 0.7 to 6.2 eV, i. READ MORE

  2. 2. Molecular beam epitaxy growth and characterization of GaN, AlN and AlGaN/GaN heterostructures

    Author : Stefan Davidsson; [2005]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; two-dimensional electron gas; MBE; Al2< sub>O3< sub>; epitaxial growth; III-nitride; molecular beam epitaxy; GaN; nucleation layer; nitridation; AlGaN; HFET; 2DEG density; AlN; 2DEG; buffer layer; sapphire; 2DEG mobility; heterostructure field effect transistor;

    Abstract : The III-nitride materials, consisting of Al, Ga, In and N, have several physical properties that make them attractive for semiconductor devices in electronic and optic applications. A wide range of direct energy bandgaps (0.7 eV - 6.1 eV) can be obtained. READ MORE

  3. 3. Growth and Characterization of AlN From Nano Structures to Bulk Material

    University dissertation from Linköping : Linköping University Electronic Press

    Author : Gholamreza Yazdi; Linköpings universitet.; Linköpings universitet.; [2008]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES Physics; NATURVETENSKAP Fysik;

    Abstract : Aluminum nitride (AlN) exhibits a large direct band gap, 6.2 eV, and is thus suitable forsolid state white-light-emitting devices. It is capable in spintronics because of its high Curietemperature if doped with transition metals. READ MORE

  4. 4. AlN Thin Film Electroacoustic Devices

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Gonzalo Fuentes Iriarte; Uppsala universitet.; [2003]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Electrical engineering; Elektroteknik; elektronik och fotonik; TECHNOLOGY Electrical engineering; electronics and photonics; TEKNIKVETENSKAP Elektroteknik; elektronik och fotonik; elektronik; Electronics;

    Abstract : Recently, the enormous growth in personal communications systems (PCS), satellite communication and various other forms of wireless data communication has made analogue frequency control a key issue as the operation frequency increases to the low/medium GHz range. Surface acoustic wave (SAW) and bulk acoustic wave (BAW) electroacoustic devices are widely used today in a variety of applications both in consumer electronics as well as in specialized scientific and military equipment where frequency control is required. READ MORE

  5. 5. Electro-Acoustic and Electronic Applications Utilizing Thin Film Aluminium Nitride

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : David Michael Martin; Uppsala universitet.; [2009]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; AlN; FBAR; FPAR; CMP; SOI; Nickel Silicide; Wafer Bonding; TECHNOLOGY Electrical engineering; electronics and photonics Electronics; TEKNIKVETENSKAP Elektroteknik; elektronik och fotonik Elektronik; Elektronik; Electronics;

    Abstract : In recent years there has been a huge increase in the growth of communication systems such as mobile phones, wireless local area networks (WLAN), satellite navigation and various other forms of wireless data communication that have made analogue frequency control a key issue. The increase in frequency spectrum crowding and the increase of frequency into microwave region, along with the need for minimisation and capacity improvement, has shown the need for the development of high performance, miniature, on-chip filters operating in the low to medium GHz frequency range. READ MORE