Modeling of optical constants of diamond-like carbon

FRANTA, Daniel, Vilma BURŠÍKOVÁ, David NEČAS and Lenka ZAJÍČKOVÁ. Modeling of optical constants of diamond-like carbon. Diamond and Related Materials. New York: Elsevier, 2008, vol. 17, No 1, p. 705–708. ISSN 0925-9635.

Basic information

• Original name: Modeling of optical constants of diamond-like carbon
• Name in Czech: Modelování optických konstant diamantu podobných vrstev
• Authors: FRANTA, Daniel (203 Czech Republic, guarantor, belonging to the institution), Vilma BURŠÍKOVÁ (203 Czech Republic, belonging to the institution), David NEČAS (203 Czech Republic, belonging to the institution) and Lenka ZAJÍČKOVÁ (203 Czech Republic, belonging to the institution).
• Edition: Diamond and Related Materials, New York, Elsevier, 2008, 0925-9635.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 10302 Condensed matter physics
• Country of publisher: United States of America
• Confidentiality degree: is not subject to a state or trade secret
• Impact factor: Impact factor: 2.092
• RIV identification code: RIV/00216224:14310/08:00024371
• Organization unit: Faculty of Science
• UT WoS: 000256643300065
• Keywords in English: Diamon-like carbon; Amorphou hydrogenated carbon; Optical properties; Band structure
• Tags: Amorphou hydrogenated carbon, Band structure, Diamon-like carbon, Optical properties
• Tags: International impact, Reviewed

Abstract

A new model of optical constants of diamond-like carbon parameterizing joint density of states (PJDOS) is introduced and compared with a previously published model based on the parameterization of density of states (PDOS). Both the models employ only six parameters: three parameters for pi-to-pi and three parameters for sigma-to-sigma transitions. These parameters have clear physical meaning. One describes the minimum energy needed for the band transition, i.e. band gap, the second is the maximum energy of transitions and the third is proportional to total density of corresponding electronic states. A certain disadvantage of PDOS model consists in the necessity of a numerical calculation. On the other hand the PJDOS model is analytical and, therefore, it can be implemented in a simple manner. The efficiency of both the models for study of DLC structure is demonstrated in several examples.

Abstract (in Czech)

A new model of optical constants of diamond-like carbon parameterizing joint density of states (PJDOS) is introduced and compared with a previously published model based on the parameterization of density of states (PDOS). Both the models employ only six parameters: three parameters for pi-to-pi and three parameters for sigma-to-sigma transitions. These parameters have clear physical meaning. One describes the minimum energy needed for the band transition, i.e. band gap, the second is the maximum energy of transitions and the third is proportional to total density of corresponding electronic states. A certain disadvantage of PDOS model consists in the necessity of a numerical calculation. On the other hand the PJDOS model is analytical and, therefore, it can be implemented in a simple manner. The efficiency of both the models for study of DLC structure is demonstrated in several examples.

Links

• GA202/07/1669, research and development project: Name: Depozice termomechanicky stabilních nanostrukturovaných diamantu-podobných tenkých vrstev ve dvojfrekvenčních kapacitních výbojích

Investor: Czech Science Foundation, Deposition of thermomehanically stable nanostructured diamond-like thin films in dual frequency capacitive discharges

• KAN311610701, research and development project: Name: Nanometrologie využívající metod rastrovací sondové mikroskopie

Investor: Academy of Sciences of the Czech Republic

• 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