Detail publikace

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

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

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.

Klíčová slova

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.

Vydáno

18. 1. 2024

Nakladatel

ELSEVIER

ISSN

1402-4896

Periodikum

PHYSICA SCRIPTA

Ročník

99

Číslo

1

Stát

Švédské království

Strany od

1

Strany do

9

Strany počet

9

URL

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

BibTex

@article{BUT187384,
  author="Mohammad Mahmoud {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="1402-4896",
  url="https://iopscience.iop.org/article/10.1088/1402-4896/ad1cb8"
}