Skip to main navigation Skip to search Skip to main content

Electrical characteristics of Pt Schottky contact to semipolar (11-22) n-GaN depending on Si Doping concentration

  • Jeonbuk National University
  • Tech University of Korea

Research output: Contribution to conferenceConference paperpeer-review

Abstract

Electrical characteristics of Pt Schottky contact formed on semipolar (11-22) n-type GaN planes with different Si doping concentration were investigated. Large Si doping to semipolar (11-22) n-GaN led to improved electrical and structural properties, e.g., the Hall mobility (μ) was increased by 35 % and the full width at half maximum (FWHM) of X-ray rocking curves with X-ray incident beam direction of [-1-12 was decreased by 34 %. Thermionic field emission (TFE) theory applied to the forward current-voltage (I-V) curves of fabricated Pt Schottky diodes yielded the Schottky barrier height (ΦB) of 1.64 and 1.84 eV, the tunneling parameter (E00) of 44 and 65 meV, and the ideality factor (n) of 1.83 and 2.57 for the lowly doped and highly doped samples, respectively, indicating that the Si doping affected the carrier transport properties substantially associated with the change of surface states density.

Original languageEnglish
Title of host publicationEngineering Decisions for Manufacturing Systems
Pages146-151
Number of pages6
DOIs
StatePublished - 2013
Event2nd International Symposium on Manufacturing Systems Engineering, ISMSE 2013 - , Singapore
Duration: 2013.07.272013.07.29

Publication series

NameApplied Mechanics and Materials
Volume404
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Conference

Conference2nd International Symposium on Manufacturing Systems Engineering, ISMSE 2013
Country/TerritorySingapore
Period13.07.2713.07.29

Keywords

  • Carrier transport
  • Schottky diode
  • Semipolar n-GaN
  • Si doping

Quacquarelli Symonds(QS) Subject Topics

  • Engineering & Technology

Fingerprint

Dive into the research topics of 'Electrical characteristics of Pt Schottky contact to semipolar (11-22) n-GaN depending on Si Doping concentration'. Together they form a unique fingerprint.

Cite this