Resolving the Heat Generated from ZrO<sub>2</sub> Atomic Layer Deposition Surface Reactions
نویسندگان
چکیده
In situ pyroelectric calorimetry and spectroscopic ellipsometry were used to investigate surface reactions in atomic layer deposition (ALD) of zirconium oxide (ZrO2). Calibrated time-resolved ALD provides new insights into the thermodynamics kinetics saturating for tetrakis(dimethylamino)zirconium(IV) (TDMAZr) water. The net reaction heat ranged from 0.197 mJ cm−2 at 76 °C 0.155 158 °C, corresponding an average 4.0 eV/Zr all temperatures. A temperature dependence was not resolved over range investigated. distribution among metalorganic oxygen source exposure is attributed factors including growth rate, equilibrium hydroxylation, extent reaction. ZrO2-forming investigated computationally using DFT methods better understand influence hydration on thermodynamics.
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ژورنال
عنوان ژورنال: Angewandte Chemie
سال: 2023
ISSN: ['1521-3773', '1433-7851', '0570-0833']
DOI: https://doi.org/10.1002/ange.202301843