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Title: Atmospheric-pressure plasma-enhanced chemical vapor deposition of a-SiCN:H films: Role of precursors on the film growth and properties

Journal Article · · ACS Applied Materials and Interfaces
DOI:https://doi.org/10.1021/am301157p· OSTI ID:1053814

Atmospheric pressure plasma enhanced chemical vapor deposition (AP-PECVD) using Surfx AtomflowTM 250D APPJ was utilized to synthesize amorphous silicon carbonitride coatings using tetramethyldisilizane (TMDZ) and hexamethyldisilizane (HMDZ) as the single source precursors. The effect of precursor chemistry and the substrate temperature (Ts) on the properties of a-SiCN:H films were evaluated, while nitrogen was used as the reactive gas. Surface morphology of the films was evaluated using atomic force microscopy (AFM); chemical properties were determined using Fourier transform infrared spectroscopy (FTIR); thickness and optical properties were determined using spectroscopic ellipsometry and mechanical properties were determined using nano-indentation. In general films deposited at substrate temperature (Ts) <200 °C contained organic moieties, while the films deposited at Ts >200 oC depicted strong Si-N and Si-CN absorption. Refractive indices (n) of the thin films showed values between 1.5 -2.0 depending on the deposition parameters. Mechanical properties of the films determined using nano-indentation revealed that these films have hardness between 0.5 GPa to 15 GPa depending on the Ts. AFM evaluation of the films showed high roughness (Ra) values of 2-3 nm for the films grown at low Ts (< 250 °C), while the films grown at Ts ≥ 300 °C exhibited atomically smooth surface with Ra of ~ 0.5 nm. Furthermore, based on the gas phase (plasma) chemistry, precursor chemistry and the other experimental observations, a possible growth model that prevails in the AP-PECVD of a-SiCN:H thin films is proposed.

Research Organization:
North Dakota State Univ., Fargo, ND (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
Grant/Contract Number:
FG36-08GO88160
OSTI ID:
1053814
Report Number(s):
DOE/GO/88160-48
Journal Information:
ACS Applied Materials and Interfaces, Vol. 4, Issue 10; ISSN 1944-8244
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 38 works
Citation information provided by
Web of Science

References (32)

Fluorination of polymethylmethaacrylate with tetrafluoroethane using DC glow discharge plasma journal July 2008
Structural, mechanical, tribological, and corrosion properties of a-SiC:H coatings prepared by PECVD journal August 2010
Introduction to Surface Engineering and Functionally Engineered Materials journal August 2011
Status and potential of atmospheric plasma processing of materials journal March 2011
Use of atmospheric pressure plasma to confer durable water repellent functionality and antimicrobial functionality on cotton/polyester blend journal July 2011
Surface chemistry of atmospheric plasma modified polycarbonate substrates journal September 2011
Trends in surface engineering of biomaterials: atmospheric pressure plasma deposition of coatings for biomedical applications journal October 2011
Remote plasma-enhanced chemical vapour deposition of silicon nitride at atmospheric pressure journal February 2002
A Physicist's Perspective on “Views on Macroscopic Kinetics of Plasma Polymerisation” journal May 2010
Deposition of transparent conductive indium oxide by atmospheric-pressure plasma jet journal December 2008
Cold atmospheric plasma: Sources, processes, and applications journal September 2010
Silicon nitride passivated bifacial Cz-silicon solar cells journal August 2009
Characterization of bias magnetron-sputtered silicon nitride films journal May 2005
The Study of Silane-Free SiC[sub x]N[sub y] Film for Crystalline Silicon Solar Cells journal January 2009
Silicon Carbonitride (SiCN) Films by Remote Hydrogen Microwave Plasma CVD from Tris(dimethylamino)silane as Novel Single-Source Precursor journal August 2010
Properties of Amorphous Hydrogenated Silicon Carbide (a-SiC:H) Films Formed by Remote Hydrogen Microwave Plasma CVD From a Triethylsilane Precursor: Part 2 journal March 2009
Amorphous Hydrogenated Silicon Carbide (a-SiC:H) Coatings Produced by Remote Hydrogen Microwave Plasma CVD from Bis(dimethylsilyl)ethane - a Novel Single-Source Precursor journal August 2011
Linear Extended ArcJet-CVD - a New PECVD Approach for Continuous Wide Area Coating Under Atmospheric Pressure journal December 2005
Atmospheric Pressure Plasma CVD of Amorphous Hydrogenated Silicon Carbonitride (a-SiCN:H) Films Using Triethylsilane and Nitrogen journal October 2011
Atmospheric Plasma Deposition of Coatings Using a Capacitive Discharge Source journal December 2005
An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments journal June 1992
Structural and mechanical properties of amorphous silicon carbonitride films prepared by vapor-transport chemical vapor deposition journal November 2009
PECVD of Low Carbon Content Silicon Nitride-Like Thin Films with Dimethylaminosilanes journal April 2007
Growth Mechanism and Chemical Structure of Amorphous Hydrogenated Silicon Carbide (a-SiC:H) Films Formed by Remote Hydrogen Microwave Plasma CVD From a Triethylsilane Precursor: Part 1 journal March 2009
Remote hydrogen–nitrogen plasma chemical vapor deposition from a tetramethyldisilazane source. Part 1. Mechanism of the process, structure and surface morphology of deposited amorphous hydrogenated silicon carbonitride filmsElectronic supplementary information (ESI) available: deconvoluted emission and IR spectra of a-Si–N–C–H films. See http://www.rsc.org/suppdata/jm/b2/b211415c/ journal February 2003
Interface engineering during plasma-enhanced chemical vapor deposition of porous/dense SiN1.3 optical multilayers journal December 2004
Preparation of Hydrogenated Amorphous Silicon Carbon Nitride Films by Hot-Wire Chemical Vapor Deposition Using Hexamethyldisilazane for Silicon Solar Cell Applications journal January 2007
Effect of deposition conditions on mechanical properties of low-temperature PECVD silicon nitride films journal November 2006
Effect of Substrate Temperature on the Plasma Polymerization of Poly(methyl methacrylate) journal January 2006
A chemical adsorption growth model for hot filament chemical vapor deposition diamond journal September 2000
The investigation of properties of silicon nitride films obtained by RPECVD from hexamethyldisilazane journal April 1997
Single source precursors for plasma-enhanced CVD of SiCN films, investigated by mass spectrometry journal October 2005

Cited By (3)

Chemical structure and optical properties of a-SiNC coatings synthesized from different disilazane precursors with the RF plasma enhanced CVD technique — a comparative study journal October 2018
Plasma CVD/etching of Poly(methyl methacrylate) surface: optical and structural characterizations journal September 2019
Atmospheric Pressure Plasma Polymerization of Super-Hydrophobic Nano-films Using Hexamethyldisilazane Monomer journal August 2015