Growth Temperature Effect of Atomic-Layer-Deposited GdOx Films

Gadolinium oxide (Gd2O3) is one of the lanthanide rare-earth oxides, which has been extensively studied due to its versatile functionalities, such as a high permittivity, reactivity with moisture, and ionic conductivity, etc. In this work, GdOx thin film was grown by atomic layer deposition using cy...

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Bibliographic Details
Main Authors: Sung Yeon Ryu, Hee Ju Yun, Min Hwan Lee, Byung Joon Choi
Format: Article
Language:English
Published: Polish Academy of Sciences 2021-09-01
Series:Archives of Metallurgy and Materials
Subjects:
Online Access:https://journals.pan.pl/Content/119248/PDF/AMM-2021-3-17-Byung%20Joon%20Choi.pdf
Description
Summary:Gadolinium oxide (Gd2O3) is one of the lanthanide rare-earth oxides, which has been extensively studied due to its versatile functionalities, such as a high permittivity, reactivity with moisture, and ionic conductivity, etc. In this work, GdOx thin film was grown by atomic layer deposition using cyclopentadienyl (Cp)-based Gd precursor and water. As-grown GdOx film was amorphous and had a sub-stoichiometric (x ~ 1.2) composition with a uniform elemental depth profile. ~3 nm-thick GdOx thin film could modify the hydrophilic Si substrate into hydrophobic surface with water wetting angle of 70°. Wetting and electrical test revealed that the growth temperature affects the hydrophobicity and electrical strength of the as-grown GdOx film.
ISSN:2300-1909