Optical properties of oxidized plasma-polymerized organosilicones and their correlation with mechanical and chemical parameters

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F19%3AN0000112" target="_blank" >RIV/00177016:_____/19:N0000112 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26310/19:PU131306

Výsledek na webu

<a href="https://www.mdpi.com/1996-1944/12/3/539" target="_blank" >https://www.mdpi.com/1996-1944/12/3/539</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma12030539" target="_blank" >10.3390/ma12030539</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Optical properties of oxidized plasma-polymerized organosilicones and their correlation with mechanical and chemical parameters

Popis výsledku v původním jazyce

Pure tetravinylsilane and its oxygen mixture were used to deposit oxidized plasma polymer films at various effective power (0.1-10 W) and various oxygen fractions (0-0.71) using RF pulsed plasma. The optical properties (refractive index, extinction coefficient, band gap) of the deposited films were investigated by spectroscopic ellipsometry (230-830 nm) using an optical model and TaucLorentz parametrization. Analyses of chemical and mechanical properties of films allowed for the interpretation of changes in optical properties with deposition conditions. The refractive index was revealed to increase with enhanced effective power due to the increased crosslinking of the plasma polymer network but decreased when increasing the oxygen fraction due to the decrease of polymer crosslinking as the number of carbon bonds in the plasma polymer network was eliminated. A very strong positive correlation was found between the Young's modulus and the refractive index for oxidized plasma polymer films. The optical properties of films correlated with their chemical properties for the specific deposition conditions used in this study. The band gap (1.9-2.9 eV) was assumed to be widened due to the increased concentration of vinyl groups in oxidized plasma polymer films.

Název v anglickém jazyce

Optical properties of oxidized plasma-polymerized organosilicones and their correlation with mechanical and chemical parameters

Popis výsledku anglicky

Pure tetravinylsilane and its oxygen mixture were used to deposit oxidized plasma polymer films at various effective power (0.1-10 W) and various oxygen fractions (0-0.71) using RF pulsed plasma. The optical properties (refractive index, extinction coefficient, band gap) of the deposited films were investigated by spectroscopic ellipsometry (230-830 nm) using an optical model and TaucLorentz parametrization. Analyses of chemical and mechanical properties of films allowed for the interpretation of changes in optical properties with deposition conditions. The refractive index was revealed to increase with enhanced effective power due to the increased crosslinking of the plasma polymer network but decreased when increasing the oxygen fraction due to the decrease of polymer crosslinking as the number of carbon bonds in the plasma polymer network was eliminated. A very strong positive correlation was found between the Young's modulus and the refractive index for oxidized plasma polymer films. The optical properties of films correlated with their chemical properties for the specific deposition conditions used in this study. The band gap (1.9-2.9 eV) was assumed to be widened due to the increased concentration of vinyl groups in oxidized plasma polymer films.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20506 - Coating and films

Projekt

—

Návaznosti

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Materials

ISSN

19961944

e-ISSN

—

Svazek periodika

12

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

12

Strana od-do

—

Kód UT WoS článku

000460768000208

EID výsledku v databázi Scopus

2-s2.0-85061492367