| Title: | Order fluctuation induced tunable light emission from carbon nano system |
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| Authors: | ID Swapna, Mohanachandran Nair Sindhu, UNIVERSITY OF KERALA (Author)
ID S, Sankararaman, UNIVERSITY OF KERALA (Author) |
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| Files: |
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| Language: | English |
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| Work type: | Not categorized |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | UNG - University of Nova Gorica
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| Abstract: | The paper reports the thermal-induced order fuctuations, in a carbon nanosystem with carbon nanotubes (CNTs) synthesized
by the incomplete combustion of gingelly oil. The sample annealed at diferent temperatures (30–400 °C) is subjected to
various morphological and spectroscopic characterizations. The ultraviolet–visible spectroscopic and thermogravimetric
analyses reveal the CNTs in the sample. The high-resolution transmission electron microscopy (HR-TEM) also confrms the
formation of CNTs in the sample. The Raman spectrum and X-ray difraction pattern show the signature of multi-walled
to single-walled CNT transformation and thus an order fuctuation on annealing. The quantum yield of the sample, measured by integrating sphere method, yields 46.15% at an emission wavelength of 575 nm. When the excitation wavelength
is varied from 350 to 510 nm, the CIE coordinate moves from the white region to the yellowish-green region. The varying
amount of CNTs in the soot, upon annealing is found to vary the luminescence emission from the sample. The study reveals
the thermal-induced oscillatory order in carbon nanosystem with carbon nanotubes (CNTs) leading to tunable excitation/
thermal-dependent luminescence emission and thereby suggesting the possibility of converting the futile soot for fruitful
applications in photonics and nanoelectronics. |
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| Keywords: | Carbon nanosystem, Single-walled carbon nanotubes, Multi-walled carbon nanotubes, Raman spectroscopy, Thermogravimetric analysis, CIE plot, Quantum yield, gingelly oil |
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| Publication version: | Version of Record |
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| Year of publishing: | 2019 |
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| Number of pages: | 9 |
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| Numbering: | 3, 9 |
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| PID: | 20.500.12556/RUNG-7418 |
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| COBISS.SI-ID: | 113865219 |
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| DOI: | 10.1007/s40089-019-0274-6 |
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| NUK URN: | URN:SI:UNG:REP:JA1OH2HC |
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| Publication date in RUNG: | 05.07.2022 |
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| Views: | 2105 |
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| Downloads: | 0 |
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