Abstract
Current-voltage characteristics of thin dielectric films of HfOx in p-Si/HfOx/Ni structures are analyzed. Experimental results are compared with various theoretical models: the Poole-Frenkel trap ionization model, the multiphonon trap ionization model, and the Schottky effect at the Ni/HfOx interface. It is shown that in spite of the good qualitative description of the experimental results by all models, only the multiphonon trap ionization model provides a quantitative description of the data.
Original language | English |
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Pages (from-to) | 310-314 |
Number of pages | 5 |
Journal | Optoelectronics, Instrumentation and Data Processing |
Volume | 50 |
Issue number | 3 |
DOIs | |
State | Published - 19 May 2014 |
Keywords
- amorphous films
- hafnium oxide
- high-κ dielectrics