Effect of single atomic layer graphene film on the thermal stability and hydrogen permeation of Pd-coated Nb composite membrane

Attempted preparation of a chelated Co(II) β-silylamide re-sulted in the unprecedented disproportionation to Co(0) and a spirocyclic cobalt(IV) bis(β-silyldiamide): [Co[(NtBu)2SiMe2]2] (1). Compound 1 exhibits a room temperature magnetic moment of 1.8 B.M and a solid state axial EPR spectrum diagnostic of a rare S = 1/2 configuration. Semicanonical coupled-cluster calculations (DLPNO-CCSD(T)) revealed the doublet state was clearly preferred (–27 kcal/mol) over higher spin configurations for which density functional theory (DFT) showed no energetic preference. Unlike other Co(IV) complexes, 1 had remarkable thermal stability, and was demonstrated to form a stable self-limiting monolayer in initial atomic layer deposition (ALD) surface saturation tests. The ease of synthesis and high-stability make 1 an attractive starting point to begin investigating otherwise inaccessible Co(IV) intermediates and synthesizing new materials.

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Preparation of Cr2O3/Al2O3 bipolar oxides as hydrogen permeation barriers by selective oxide removal on SS and atomic layer deposition

International Journal of Hydrogen Energy ◽

10.1016/j.ijhydene.2019.03.086 ◽

2019 ◽

Vol 44 (23) ◽

pp. 12277-12287 ◽

Cited By ~ 5

Author(s):

Mengyuan Zhang ◽

Rongyi Zhao ◽

Yunhan Ling ◽

Rongguang Wang ◽

Qingyun Zhou ◽

...

Keyword(s):

Atomic Layer Deposition ◽

Hydrogen Permeation ◽

Atomic Layer ◽

Layer Deposition ◽

Oxide Removal

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Enhancement in thermal stability of atomic layer deposited HfO2 films by using top Hf metal layer

Microelectronic Engineering ◽

10.1016/j.mee.2007.04.082 ◽

2007 ◽

Vol 84 (9-10) ◽

pp. 2226-2229 ◽

Cited By ~ 4

Author(s):

Tae Joo Park ◽

Jeong Hwan Kim ◽

Jae Hyuck Jang ◽

Minha Seo ◽

Kwang Duk Na ◽

...

Keyword(s):

Thermal Stability ◽

Metal Layer ◽

Atomic Layer ◽

Thermal Stability Of

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Thermal stability of atomic-layer-deposited ultra-thin niobium oxide film on Si (100)

Applied Surface Science ◽

10.1016/j.apsusc.2011.03.109 ◽

2011 ◽

Vol 257 (16) ◽

pp. 7305-7309 ◽

Cited By ~ 11

Author(s):

Yue Huang ◽

Yan Xu ◽

Shi-Jin Ding ◽

Hong-Liang Lu ◽

Qing-Qing Sun ◽

...

Keyword(s):

Thermal Stability ◽

Oxide Film ◽

Niobium Oxide ◽

Atomic Layer ◽

Thermal Stability Of

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Thermal stability of MgO film on Si grown by atomic layer deposition using Mg(EtCp)2 and H2O

Ceramics International ◽

10.1016/j.ceramint.2021.08.038 ◽

2021 ◽

Author(s):

Changyu Park ◽

Changmin Lee ◽

Woohui Lee ◽

Jehoon Lee ◽

Jinyong Kim ◽

...

Keyword(s):

Thermal Stability ◽

Atomic Layer Deposition ◽

Atomic Layer ◽

Layer Deposition ◽

Thermal Stability Of

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Investigation of Physical Properties and Thermal Stability of Ultra-Thin TIN/HFO2 Film Stack Prepared by Atomic Layer Deposition

2021 China Semiconductor Technology International Conference (CSTIC) ◽

10.1109/cstic52283.2021.9461494 ◽

2021 ◽

Author(s):

Yiqun Liu ◽

Qingqing Wu ◽

Xiang Lv ◽

Gang Chen ◽

Weihao Lin ◽

...

Keyword(s):

Thermal Stability ◽

Atomic Layer Deposition ◽

Physical Properties ◽

Atomic Layer ◽

Hfo2 Film ◽

Layer Deposition ◽

Thermal Stability Of

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Growth of Ordered Graphene Ribbons by Sublimation Epitaxy

Crystals ◽

10.3390/cryst8120449 ◽

2018 ◽

Vol 8 (12) ◽

pp. 449

Author(s):

Shuxian Cai ◽

Xingfang Liu ◽

Xin Zheng ◽

Zhonghua Liu

Keyword(s):

Substrate Surface ◽

Graphene Film ◽

Graphene Ribbon ◽

High Quality ◽

Graphene Layers ◽

Force Microscopy ◽

Layer Graphene ◽

Micro Raman Spectroscopy ◽

Atomic Force ◽

Few Layer Graphene

Ordered graphene ribbons were grown on the surface of 4° off-axis 4H-SiC wafers by sublimation epitaxy, and characterized by using scanning electron microscopy (SEM), atomic force microscopy (AFM) and micro-Raman spectroscopy (μ-Raman). SEM showed that there were gray and dark ribbons on the substrate surface, and AFM further revealed that these ordered graphene ribbons had clear stepped morphologies due to surface step-bunching. It was shown by μ-Raman that the numbers of graphene layers of these two types of regions were different. The gray region was composed of mono- or bilayer ordered graphene ribbon, while the dark region was of tri- or few-layer ribbon. Meanwhile, ribbons were all homogeneous and had a width up to 40 μm and a length up to 1000 μm, without micro defects such as grain boundaries, ridges, or mono- and few-layer graphene mixtures. The results of this study are useful for optimized growth of high-quality graphene film on silicon carbide crystal.

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