Effects of y contents on surface, structural, optical, and electrical properties for Y-doped ZnO thin films

Sungeun Heo, Sanjeev K. Sharma, Sejoon Lee, Youngmin Lee, Changmin Kim, Byungho Lee, Hwangho Lee, Deuk Young Kim

Research output: Contribution to journalArticlepeer-review

55 Scopus citations

Abstract

For the sol-gel synthesis of Y-doped ZnO (YZO) thin films, the mole concentration of Y significantly affects the physical properties of YZO. Namely, the incorporation of Y dopants into ZnO helps improve the surface, structural, optical, and electrical properties of YZO. When the appropriate concentration of Y is doped in YZO (i.e., Y ~ 2 at.%), the densities of oxygen-related native point defects are minimized, and the crystallite sizes of YZO grains are maximized. Consequently, the YZO (Y: 2 at.%) films show the improved electrical properties with the lower Hall resistivity.

Original languageEnglish
Pages (from-to)27-30
Number of pages4
JournalThin Solid Films
Volume558
DOIs
StatePublished - 2 May 2014

Keywords

  • Electrical properties
  • Photoluminescence
  • Sol-gel deposition
  • Structural properties
  • Thin films
  • Yttrium-doped zinc oxide

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