Influence of Annealing Temperature on the Structural and Electrical Properties of Si-Doped Ferroelectric Hafnium Oxide
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
The ferroelectric properties of hafnium oxide films are strongly influenced by the crystallization process due to the interaction of thermodynamics, kinetics, and mechanical stress. In this work, the influence of annealing temperature on the crystallographic properties and microstructure of Si-doped hafnium oxide thin films as well as their ferroelectric properties are investigated by X-ray diffraction, transmission Kikuchi diffraction, and electrical characterization. The findings reveal the emergence of a [100] and [110] out-of-plane texture for metal-ferroelectric-metal (MFM) and metal-ferroelectric-insulator-semiconductor (MFIS) capacitor structures with increasing annealing temperature, respectively. In combination with observed stress relaxation at higher temperatures and the evolution of the wake-up behavior, insights into the crystallization process and the influence of the interplay of microstructure and stress on the ferroelectric properties of hafnium oxide thin films are given.
Details
| Original language | English |
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| Pages (from-to) | 4115-4120 |
| Number of pages | 6 |
| Journal | ACS applied electronic materials |
| Volume | 3 |
| Issue number | 9 |
| Publication status | Published - 28 Sept 2021 |
| Peer-reviewed | Yes |
External IDs
| ORCID | /0000-0002-2484-4158/work/142257584 |
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Keywords
ASJC Scopus subject areas
Keywords
- crystallization, ferroelectrics, hafnium oxide, microstructure, transmission Kikuchi diffraction, X-ray diffraction