Real-Time Observation of Atomic Layer Deposition Inhibition: Metal Oxide Growth on Self-Assembled Alkanethiols
Journal Article
·
· ACS Applied Materials and Interfaces
- Northwestern Univ., Evanston, IL (United States). Dept. of Chemistry
- Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
- Northwestern Univ., Evanston, IL (United States). Dept. of Chemistry; Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
Through in-situ quartz crystal microbalance (QCM) monitoring we resolve the growth of a self-assembled monolayer (SAM) and subsequent metal oxide deposition with high resolution. Here, we introduce the fitting of mass deposited during each atomic layer deposition (ALD) cycle to an analytical island-growth model that enables quantification of growth inhibition, nucleation density, and the uninhibited ALD growth rate. A long-chain alkanethiol was self-assembled as a monolayer on gold-coated quartz crystals in order to investigate its effectiveness as a barrier to ALD. Compared to solution-loading, vapor-loading is observed to produce a SAM with equal or greater inhibition-ability in minutes vs. days. The metal oxide growth temperature and the choice of precursor also significantly affect the nucleation density, which ranges from 0.001 to 1 sites/nm2. Finally, we observe a minimum 100 cycle inhibition of an oxide ALD process, ZnO, under moderately optimized conditions.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Grant/Contract Number:
- AC02-06CH11357; SC0001059
- OSTI ID:
- 1357040
- Alternate ID(s):
- OSTI ID: 1168380
OSTI ID: 1386542
- Journal Information:
- ACS Applied Materials and Interfaces, Journal Name: ACS Applied Materials and Interfaces Journal Issue: 15 Vol. 6; ISSN 1944-8244
- Publisher:
- American Chemical Society (ACS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Atomic layer deposition of Cu( i ) oxide films using Cu( ii ) bis(dimethylamino-2-propoxide) and water
|
journal | January 2017 |
Similar Records
Inhibiting Metal Oxide Atomic Layer Deposition: Beyond Zinc Oxide
Thermal Atomic Layer Deposition of Gold: Mechanistic Insights, Nucleation, and Epitaxy
Molecular Anchors for Self-Assembled Monolayers on ZnO: A Direct Comparison of the Thiol and Phosphic Acid Moieties
Journal Article
·
Tue Apr 04 20:00:00 EDT 2017
· ACS Applied Materials and Interfaces
·
OSTI ID:1402052
Thermal Atomic Layer Deposition of Gold: Mechanistic Insights, Nucleation, and Epitaxy
Journal Article
·
Mon Feb 08 19:00:00 EST 2021
· ACS Applied Materials and Interfaces
·
OSTI ID:1774177
Molecular Anchors for Self-Assembled Monolayers on ZnO: A Direct Comparison of the Thiol and Phosphic Acid Moieties
Journal Article
·
Wed Dec 31 23:00:00 EST 2008
· Journal of Physical Chemistry C
·
OSTI ID:975386