1 Ocak 2018 Dergi makalesi Açık Erişim

Atmaca, Gokhan; Narin, Polat; Kutlu, Ece; Malin, Timur Valerevich; Mansurov, Vladimir G.; Zhuravlev, Konstantin Sergeevich; Lisesivdin, Sefer Bora; Ozbay, Ekmel

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{
  "@context": "https://schema.org/", 
  "@id": 36083, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "Gazi Univ, Lisesivdin Res Grp, Fac Sci, Dept Phys, TR-06500 Ankara, Turkey", 
      "name": "Atmaca, Gokhan"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Gazi Univ, Lisesivdin Res Grp, Fac Sci, Dept Phys, TR-06500 Ankara, Turkey", 
      "name": "Narin, Polat"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Gazi Univ, Lisesivdin Res Grp, Fac Sci, Dept Phys, TR-06500 Ankara, Turkey", 
      "name": "Kutlu, Ece"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Russian Acad Sci, Siberian Branch, Rzhanov Inst Semicond Phys, Novosibirsk 630090, Russia", 
      "name": "Malin, Timur Valerevich"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Russian Acad Sci, Siberian Branch, Rzhanov Inst Semicond Phys, Novosibirsk 630090, Russia", 
      "name": "Mansurov, Vladimir G."
    }, 
    {
      "@type": "Person", 
      "name": "Zhuravlev, Konstantin Sergeevich"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Gazi Univ, Lisesivdin Res Grp, Fac Sci, Dept Phys, TR-06500 Ankara, Turkey", 
      "name": "Lisesivdin, Sefer Bora"
    }, 
    {
      "@type": "Person", 
      "name": "Ozbay, Ekmel"
    }
  ], 
  "datePublished": "2018-01-01", 
  "description": "The aim of this paper is an investigation of electric field-dependent drift velocity characteristics for Al0.3Ga0.7N/AlN/GaN heterostructures without and with in situ Si3N4 passivation. The nanosecond-pulsed currentvoltage (I-V) measurements were performed using a 20-ns applied pulse. Electron drift velocity depending on the electric field was obtained from the I -V measurements. Thesemeasurements showthat a reduction in peak electron velocity from 2.01 x 10(7) to 1.39 x 10(7) cm/s after in situ Si3N4 passivation. Also, negative differential resistance regime was observed which begins at lower fields with the implementation of in situ Si3N4 passivation. In our samples, the electric field dependence of drift velocitywas measured over 400 kV/cm due to smaller sample lengths. Then, a wellknown fitting model was fitted to our experimental results. This fitting model was improved in order to provide an adequate description of the field dependence of drift velocity. It gives reasonable agreement with the experimental drift velocity data up to 475 kV/cm of the electric field and could be used in the device simulators.", 
  "headline": "Negative Differential Resistance Observation and a New Fitting Model for Electron Drift Velocity in GaN-Based Heterostructures", 
  "identifier": 36083, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "Negative Differential Resistance Observation and a New Fitting Model for Electron Drift Velocity in GaN-Based Heterostructures", 
  "url": "https://aperta.ulakbim.gov.tr/record/36083"
}