Detail publikačního výsledku

Energy gap measurements based on enhanced absorption coefficient calculation from transmittance and reflectance raw data

ALLAHAM, M.; DALLAEV, R.; BURDA, D.; SOBOLA, D.; NEBOJSA, A.; KNÁPEK, A.; MOUSA, M.; KOLAŘÍK, V.

Originální název

Energy gap measurements based on enhanced absorption coefficient calculation from transmittance and reflectance raw data

Anglický název

Energy gap measurements based on enhanced absorption coefficient calculation from transmittance and reflectance raw data

Druh

Článek WoS

Originální abstrakt

The absorption coefficient plays an important role in studying and characterizing semiconducting materials. It is an important parameter to study the mechanism of photons absorption within the structure of the studied material. Thus, it helps to study the several types of charge carrier transport along with the energy band structure and its defects. In literature, a formula was reported to precisely calculate the absorption coefficient from raw data of transmittance and reflectance of electromagnetic radiation. However, the reported formula has several issues limiting its validity in the literature. In this paper, we provide a more mathematically accurate form of this equation to precisely obtain the absorption coefficient from the raw data, by considering the total internal reflection at the different interfaces. Moreover, the equation is tested by simulated data and is applied to study the optical characteristics of a single-component epoxy resin from its transmittance and reflectance raw data.

Anglický abstrakt

The absorption coefficient plays an important role in studying and characterizing semiconducting materials. It is an important parameter to study the mechanism of photons absorption within the structure of the studied material. Thus, it helps to study the several types of charge carrier transport along with the energy band structure and its defects. In literature, a formula was reported to precisely calculate the absorption coefficient from raw data of transmittance and reflectance of electromagnetic radiation. However, the reported formula has several issues limiting its validity in the literature. In this paper, we provide a more mathematically accurate form of this equation to precisely obtain the absorption coefficient from the raw data, by considering the total internal reflection at the different interfaces. Moreover, the equation is tested by simulated data and is applied to study the optical characteristics of a single-component epoxy resin from its transmittance and reflectance raw data.

Klíčová slova

Absorption coefficients; Charge transition; Enhanced absorption; Gap measurements; Measurement-based; Photons absorption; Semiconducting materials; Tauc plots; Transmittance and reflectances; Urbach energy

Klíčová slova v angličtině

Absorption coefficients; Charge transition; Enhanced absorption; Gap measurements; Measurement-based; Photons absorption; Semiconducting materials; Tauc plots; Transmittance and reflectances; Urbach energy

Autoři

ALLAHAM, M.; DALLAEV, R.; BURDA, D.; SOBOLA, D.; NEBOJSA, A.; KNÁPEK, A.; MOUSA, M.; KOLAŘÍK, V.

Rok RIV

2025

Vydáno

18.01.2024

Nakladatel

Elsevier

ISSN

1402-4896

Periodikum

Physica Scripta

Svazek

99

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

9

Strany počet

9

URL

https://iopscience.iop.org/article/10.1088/1402-4896/ad1cb8

Plný text v Digitální knihovně

http://hdl.handle.net/11012/245482

BibTex

@article{BUT187384,
  author="Mohammad Mahmoud Mohammad {Allaham} and Rashid {Dallaev} and Daniel {Burda} and Dinara {Sobola} and Alois {Nebojsa} and Alexandr {Knápek} and Marwan {Mousa} and Vladimír {Kolařík}",
  title="Energy gap measurements based on enhanced absorption coefficient calculation from transmittance and reflectance raw data",
  journal="Physica Scripta",
  year="2024",
  volume="99",
  number="1",
  pages="1--9",
  doi="10.1088/1402-4896/ad1cb8",
  issn="0031-8949",
  url="https://iopscience.iop.org/article/10.1088/1402-4896/ad1cb8"
}

Dokumenty

Allaham_2024_Phys._Scr._99_025952