Heat treatment effect on the structural, morphological, and optical properties of plasma polymerized furan-2-carbaldehyde thin films

Kabir, Humayun; Nasrin, Rahima; Rahman, M. Mahbubur; Bhuiyan, A.H.

doi:10.1016/j.rinp.2020.103014

Cited by 9 publications

(1 citation statement)

References 47 publications

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“…This energy correlated defect tail is termed as the Urbach energy provided by Eq. (1) [ 60 ],

Where α o , α and E U denote the constant, absorption coefficients, and Urbach energy (energy of the band tail), respectively. Taking natural log on both sides of the equation, one obtains a straight line equation such as given by Eq.…”

Section: Resultsmentioning

confidence: 99%

Extraction, optical properties, and aging studies of natural pigments of various flower plants

Zumahi

Arobi

Taha

et al. 2020

Heliyon

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In this paper, we reported the extraction process of five different flowering plants utilizing different dye extraction methods and solvents (ethanol and water) to choose the best dye removal process. The FTIR spectra revealed the presence of several clear functional groups for all five natural dyes. The analytical studies such as UV spectroscopy, column chromatography, and vacuum evaporation were performed to isolate the dyes from their solutions. The UV-Vis studies on the pigments of flower extracts indicated broad absorption peaks in the visible region including clear bandgaps. Among the studied pigments, Alternanthera ficoidea showed the lowest direct bandgap of 1.69 eV and an Urbach energy value of 6.33 meV. The dye extraction yield rate improvement was extended from 11.7 to 24.7% (water solvent) and 11.3-32.4% (ethanol solvent). Throughout the studies, it was observed that ethanol produced a better extraction for organic dyes than water as a solvent. Aging studies revealed that all the dyes at the room temperature showed better stability with minor changes in the observed optical parameters in oxygen-rich conditions; however, these parameters have shown significant variations at a 60 C temperature.

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“…This energy correlated defect tail is termed as the Urbach energy provided by Eq. (1) [ 60 ],

Section: Resultsmentioning

confidence: 99%

Extraction, optical properties, and aging studies of natural pigments of various flower plants

Zumahi

Arobi

Taha

et al. 2020

Heliyon

Self Cite

View full text Add to dashboard Cite

show abstract

Effect of the Heat Treatment Sequence in Forming WO3/SnO2/CuO Nanocomposites on the Photocatalytic Properties Illuminated by UV and Sunlight Irradiation

Rezende

Neto

Bomio

et al. 2021

J. Electron. Mater.

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Exploring the Correlation Between Surface Roughness, Surface Energy, Nano-indentation, Electrical Properties, and Magnetic Characteristics of Annealed Co40Fe40Dy20 Thin Films Deposited on Si(100) Substrates

Liu,

Chang,

Hsu

et al. 2024

J. Electron. Mater.

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Heat treatment effect on the structural, morphological, and optical properties of plasma polymerized furan-2-carbaldehyde thin films

Cited by 9 publications

References 47 publications

Extraction, optical properties, and aging studies of natural pigments of various flower plants

Extraction, optical properties, and aging studies of natural pigments of various flower plants

Effect of the Heat Treatment Sequence in Forming WO3/SnO2/CuO Nanocomposites on the Photocatalytic Properties Illuminated by UV and Sunlight Irradiation

Exploring the Correlation Between Surface Roughness, Surface Energy, Nano-indentation, Electrical Properties, and Magnetic Characteristics of Annealed Co40Fe40Dy20 Thin Films Deposited on Si(100) Substrates

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