Effect of substrate temperature on residual stress of ZnO thin films prepared by ion beam deposition

Ju Won Jeon, Myoung Kim, Lee Woon Jang, J. L. Hoffman, Nam Soo Kim, In Hwan Lee

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

We have investigated the effect of substrate temperature on micro-structural properties of ZnO thin films prepared by ion beam deposition technique. ZnO thin films were deposited on AlN-buffered Si (111) and sapphire (001) substrates at various substrate temperatures. The structural properties and surface morphologies were examined by high resolution X-ray diffraction (XRD) and field emission scanning electron microscopy, respectively. The RMS roughness was measured by atomic force microscopy. XRD measurements confirmed that the ZnO thin films were grown well on the AlN-buffered Si (111) and sapphire (001) substrates along the c-axis. Minimization of residual stress was carried out by tuning the substrate temperature. The structural properties were notably improved with increasing substrate temperature.

Original languageEnglish
Pages (from-to)27-32
Number of pages6
JournalElectronic Materials Letters
Volume8
Issue number1
DOIs
Publication statusPublished - 2012 Feb
Externally publishedYes

Keywords

  • ZnO thin film
  • ion beam deposition
  • stress
  • substrate temperature

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

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