Effect of Zr/Ti ratios on characterization of Pb(ZrxTi1-x)O3 thin films on Al2O3 buffered Si for one-transistor memory applications

  • Chia Liang Sun*
  • , Jung Jui Hsu
  • , San Yuan Chen
  • , Albert Chin
  • *Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

2 Scopus citations

Abstract

Pb(ZrxTi1-x)O3 (PZT) thin films have been prepared on Al2O3/Si and PbTiO3/Al2O3/Si substrates, respectively. On Al2O3/Si substrates, Ti-rich PZT thin films had lower perovskite transformation temperatures than those of Zr-rich PZT films. Therefore, PbTiO3 was used as the seeding layer on Al2O3/Si to form a PbTiO3/Al2O3/Si substrate. The threshold voltage shift of a PZT(53/47)/PbTiO3/Al2O3/Si capacitor reaches 9 V with ± 10 V writing voltages, which is much larger than the 2 V of the PZT(0/100)/PbTiO3/Al2O3/Si capacitor. Different memory mechanisms in the capacitance-voltage characteristics of capacitors were further examined and discussed in this paper.

Original languageEnglish
Pages (from-to)G187-G191
JournalJournal of the Electrochemical Society
Volume150
Issue number3
DOIs
StatePublished - 03 2003
Externally publishedYes

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