New Dispersion Model of the Optical Constants of the DLC Films

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F03%3A00008252" target="_blank" >RIV/00216224:14310/03:00008252 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

New Dispersion Model of the Optical Constants of the DLC Films

Popis výsledku v původním jazyce

In this paper a new dispersion model of the optical constants of amorphous solids enabled us to perform an efficient parameterization of the optical constants of diamond like carbon (DLC) thin films. The model was based on the mathematical modeling of the density of electronic states (DOS) corresponding to both the valence and conduction bands. Moreover, the existence of the sigma and pi electronic states was taken into account, i.e. two valence and two conduction bands were supposed. The imaginary andreal parts of the dielectric function were then calculated by the numerical convolution of the DOS and using a corresponding Kramers-Kronig relation, respectively. According to the model the DOS as well as the optical constants were calculated from ellipsometric measurements in the range 240-830 nm and estimated even outside this range. From the parameters of the model we evaluated also the ratio of pi-to-sigma electrons and consequently the sp3-to-sp2 ratio using a known hydrogen atomic

Název v anglickém jazyce

New Dispersion Model of the Optical Constants of the DLC Films

Popis výsledku anglicky

In this paper a new dispersion model of the optical constants of amorphous solids enabled us to perform an efficient parameterization of the optical constants of diamond like carbon (DLC) thin films. The model was based on the mathematical modeling of the density of electronic states (DOS) corresponding to both the valence and conduction bands. Moreover, the existence of the sigma and pi electronic states was taken into account, i.e. two valence and two conduction bands were supposed. The imaginary andreal parts of the dielectric function were then calculated by the numerical convolution of the DOS and using a corresponding Kramers-Kronig relation, respectively. According to the model the DOS as well as the optical constants were calculated from ellipsometric measurements in the range 240-830 nm and estimated even outside this range. From the parameters of the model we evaluated also the ratio of pi-to-sigma electrons and consequently the sp3-to-sp2 ratio using a known hydrogen atomic

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BM - Fyzika pevných látek a magnetismus

OECD FORD obor

—

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2003

Kód důvěrnosti údajů

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

Název periodika

Acta Physica Slovaca

ISSN

0323-0465

e-ISSN

—

Svazek periodika

53

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

SK - Slovenská republika

Počet stran výsledku

12

Strana od-do

373-384

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—