Sol-Gel-derived amorphous- MgNb 2 O 6 thin films for transparent microelectronics

Yi Da Ho, Kung Rong Chen, Cheng-Liang Huang

研究成果: Article

3 引文 斯高帕斯(Scopus)

摘要

In this work, transparent amorphous-MgNb2O6 thin films were fabricated on ITO/glass substrates using the sol-gel method. The change in the chemical states, as well as the optical and dielectric properties of MgNb2O6 films at various annealing temperatures is investigated. In this study, MgNb2O6 films exhibited the amorphous phase when the annealing temperature was below 600°C. From X-ray photoelectron spectroscopy, the major parts of the films' chemical states can be indexed as Mg2+, Nb5+, Nb4+, and O 2-. Furthermore, the Nb4+ element can be reduced at higher annealing temperatures. The average transmission percentage in the visible range (λ = 400-800 nm) is over 80% for all MgNb2O 6/ITO/glass samples, whereas the optical band gap (Eg) for all samples is estimated at ~4 eV. In addition, the dielectric constant was calculated to be higher than 20 under a 1 MHz AC electric field, with a leakage current density below 2 × 10-7 A/cm2 at 1 V. In this study, the fabrication procedure and experiment results of MgNb 2O6 films are introduced for transparent microelectronics.

原文English
頁(從 - 到)3375-3378
頁數4
期刊Journal of the American Ceramic Society
96
發行號11
DOIs
出版狀態Published - 2013 十一月

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

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