J 2007

Organosilicon thin films deposited by plasma enhanced CVD: Thermal changes of chemical structure and mechanical properties

ZAJÍČKOVÁ, Lenka, Vilma BURŠÍKOVÁ, Zuzana KUČEROVÁ, Jana FRANCLOVÁ, Pavel SŤAHEL et. al.

Basic information

Original name

Organosilicon thin films deposited by plasma enhanced CVD: Thermal changes of chemical structure and mechanical properties

Name in Czech

Organosilikonové tenké vrstvy připravené metodou PECVD: termálně indukované změny chemické struktury a mechanických vlastností

Authors

ZAJÍČKOVÁ, Lenka (203 Czech Republic, guarantor), Vilma BURŠÍKOVÁ (203 Czech Republic), Zuzana KUČEROVÁ (203 Czech Republic), Jana FRANCLOVÁ (203 Czech Republic), Pavel SŤAHEL (203 Czech Republic), Vratislav PEŘINA (203 Czech Republic) and Anna MACKOVÁ (203 Czech Republic)

Edition

Journal of Physics and Chemistry of Solids, Elsevier, 2007, 0022-3697

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10305 Fluids and plasma physics

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 0.899

RIV identification code

RIV/00216224:14310/07:00022272

Organization unit

Faculty of Science

UT WoS

000247887800117

Keywords in English

Thin films;Organometallic compounds;Plasma deposition;Infrared spectroscopy;Mechanical properties

Tags

International impact, Reviewed
Změněno: 9/1/2008 09:46, doc. Mgr. Lenka Zajíčková, Ph.D.

Abstract

V originále

Thin organosilicon and silicon oxide films were deposited in r.f. capacitively coupled discharges from a mixture of hexamethyldisiloxane (HMDSO) and oxygen. The concentration of HMDSO was in the range 5-17%. Even for such relatively high dilution of HMDSO the organic-inorganic crossover of the film character was observed due to changes of the HMDSO concentration, but other factors, such as pressure and d.c. self-bias should also be taken into account. When annealed the films changed their composition, chemical structure and mechanical properties. We observed desorption of water, methane and CO or CO2 from the SiO2-like films. The hardness of the SiO2-like film, containing 5% carbon and 25% hydrogen, increased with the increase of annealing temperature from 5.9 (as deposited) to 11.3 GPa (500 oC). Simultaneously, its fracture toughness was significantly improved. These effects were explained by dehydration and cross-linking of the film. However, the mechanical properties of highly cross-linked SiO1:9C1:6H0:6 plasma polymer were superior over the SiO2-like film containing impurities and such film can be used as a protective coating with a hardness above 9.6 GPa up to the temperature of 400 oC.

In Czech

Tenké organosilikonové vrstvy a vrstvy oxidu křemíku byly deponovány ve v.f. kapacitně vázaném výboji ze směsi HMDSO s kyslíkem

Links

MSM0021622411, plan (intention)
Name: Studium a aplikace plazmochemických reakcí v neizotermickém nízkoteplotním plazmatu a jeho interakcí s povrchem pevných látek
Investor: Ministry of Education, Youth and Sports of the CR, Study and application of plasma chemical reactions in non-isothermic low temperature plasma and its interaction with solid surface
1K05025, research and development project
Name: Příprava nových Si-O(N)-C materiálů plazmochemickou metodou
Investor: Ministry of Education, Youth and Sports of the CR, Synthesis of new Si-O(N)-C materials by plasmachemical methods