Wide spectral range optical characterization of niobium
pentoxide (Nb2O5) films by universal dispersion model

J 2024

Wide spectral range optical characterization of niobium pentoxide (Nb2O5) films by universal dispersion model

FRANTA, Daniel; Beáta HRONCOVÁ; Jan DVOŘÁK; Jiří VOHÁNKA; Pavel FRANTA et al.

Základní údaje

Originální název

Wide spectral range optical characterization of niobium pentoxide (Nb2O5) films by universal dispersion model

Autoři

FRANTA, Daniel; Beáta HRONCOVÁ; Jan DVOŘÁK; Jiří VOHÁNKA; Pavel FRANTA; Ivan OHLÍDAL; Václav PEKAŘ a David ŠKODA

Vydání

Optical Materials, Elsevier, 2024, 0925-3467

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10305 Fluids and plasma physics

Stát vydavatele

Nizozemské království

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 4.200

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/24:00137382

Organizační jednotka

Přírodovědecká fakulta

Klíčová slova anglicky

Optical constants; Ellipsometry; Spectrophotometry; Optical films

Štítky

14312030, rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 22. 9. 2025 12:05, Mgr. Marie Novosadová Šípková, DiS.

Anotace

V originále

In this work, the optical properties of niobium pentoxide (Nb2O5) films were extensively studied across a wide spectral range using heterogeneous data-processing methods, combining ellipsometric and spectrophotometric measurements for five samples with thicknesses between 20 and 250 nm. This study primarily determined the optical constants of Nb2O5 from the far infrared to the vacuum ultraviolet, presenting these constants as dispersion parameters using the universal dispersion model to describe valence electron excitations in ultraviolet region as well as phonon vibrations in infrared region. These comprehensive and reliable data across such a broad spectral range are unprecedented. Secondly, presented optical characterization proofs that Nb2O5 films can be grown without defects such as surface roughness, porosity, or inhomogeneity. This fact, together with its high refractive index, makes Nb2O5 a promising material for optical applications.

Návaznosti

90239, velká výzkumná infrastruktura

Název: CEPLANT II

Citovat

FRANTA, Daniel; Beáta HRONCOVÁ; Jan DVOŘÁK; Jiří VOHÁNKA; Pavel FRANTA; Ivan OHLÍDAL; Václav PEKAŘ a David ŠKODA. Wide spectral range optical characterization of niobium pentoxide (Nb2O5) films by universal dispersion model. Optical Materials. Elsevier, 2024, roč. 157, November, s. 1-14. ISSN 0925-3467. Dostupné z: https://doi.org/10.1016/j.optmat.2024.116133.

@article{2445444,
   author = {Franta, Daniel and Hroncová, Beáta and Dvořák, Jan and Vohánka, Jiří and Franta, Pavel and Ohlídal, Ivan and Pekař, Václav and Škoda, David},
   article_number = {November},
   doi = {https://doi.org/10.1016/j.optmat.2024.116133},
   keywords = {Optical constants; Ellipsometry; Spectrophotometry; Optical films},
   language = {eng},
   issn = {0925-3467},
   journal = {Optical Materials},
   title = {Wide spectral range optical characterization of niobium pentoxide (Nb2O5) films by universal dispersion model},
   url = {https://www.sciencedirect.com/science/article/pii/S0925346724013168},
   volume = {157},
   year = {2024}
}

TY  - JOUR
ID  - 2445444
AU  - Franta, Daniel - Hroncová, Beáta - Dvořák, Jan - Vohánka, Jiří - Franta, Pavel - Ohlídal, Ivan - Pekař, Václav - Škoda, David
PY  - 2024
TI  - Wide spectral range optical characterization of niobium pentoxide (Nb2O5) films by universal dispersion model
JF  - Optical Materials
VL  - 157
IS  - November
SP  - 1-14
EP  - 1-14
PB  - Elsevier
SN  - 09253467
KW  - Optical constants
KW  - Ellipsometry
KW  - Spectrophotometry
KW  - Optical films
UR  - https://www.sciencedirect.com/science/article/pii/S0925346724013168
N2  - In this work, the optical properties of niobium pentoxide (Nb2O5) films were extensively studied across a wide spectral range using heterogeneous data-processing methods, combining ellipsometric and spectrophotometric measurements for five samples with thicknesses between 20 and 250 nm. This study primarily determined the optical constants of Nb2O5 from the far infrared to the vacuum ultraviolet, presenting these constants as dispersion parameters using the universal dispersion model to describe valence electron excitations in ultraviolet region as well as phonon vibrations in infrared region. These comprehensive and reliable data across such a broad spectral range are unprecedented. Secondly, presented optical characterization proofs that Nb2O5 films can be grown without defects such as surface roughness, porosity, or inhomogeneity. This fact, together with its high refractive index, makes Nb2O5 a promising material for optical applications.
ER  -

FRANTA, Daniel; Beáta HRONCOVÁ; Jan DVOŘÁK; Jiří VOHÁNKA; Pavel FRANTA; Ivan OHLÍDAL; Václav PEKAŘ a David ŠKODA. Wide spectral range optical characterization of niobium pentoxide (Nb2O5) films by universal dispersion model. \textit{Optical Materials}. Elsevier, 2024, roč.~157, November, s.~1-14. ISSN~0925-3467. Dostupné z: https://doi.org/10.1016/j.optmat.2024.116133.

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