Structure of Photoluminescence Spectra of Oxygen-Doped Graphitic Carbon Nitride
The relationships governing variation of the photoluminescence of graphitic carbon nitride synthesized by heat treatment of melamine in a closed air medium containing oxygen in the temperature range of 10–300 K were investigated. It was shown that the concentration of oxygen in the obtained material...
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| Autor*in: |
Chubenko, E. B. [verfasserIn] |
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| Format: |
Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2020 |
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| Schlagwörter: |
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| Anmerkung: |
© Springer Science+Business Media, LLC, part of Springer Nature 2020 |
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| Übergeordnetes Werk: |
Enthalten in: Journal of applied spectroscopy - Springer US, 1966, 87(2020), 1 vom: März, Seite 9-14 |
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| Übergeordnetes Werk: |
volume:87 ; year:2020 ; number:1 ; month:03 ; pages:9-14 |
| Links: |
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| DOI / URN: |
10.1007/s10812-020-00954-y |
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| 520 | |a The relationships governing variation of the photoluminescence of graphitic carbon nitride synthesized by heat treatment of melamine in a closed air medium containing oxygen in the temperature range of 10–300 K were investigated. It was shown that the concentration of oxygen in the obtained material 4–5 at.% increases with increase of temperature and decreases with increase in the duration of the synthesis process. By measurements at reduced temperatures right down to 10 K it was possible to resolve bands due to radiative recombination processes in the photoluminescence spectra of the graphitic carbon nitride. It was found that increase of the synthesis temperature from 500 to 600°C and also increase of the duration at the given temperature from 30 to 240 min shift the maximum in the photoluminescence spectrum from 2.74 eV into the region of lower energies to 2.71–2.67 eV. This is due to the bigger role of the molecular system formed by the π bonds of carbon and nitrogen atoms with $ sp^{2} $ hybridization and characterized by a smaller forbidden band width in the emission of light. Transitions due to recombination through oxygen-induced levels in the forbidden band of the semiconductor lead to the appearance of a "tail" in the photoluminescence spectra in the region of low energies (2.40–2.33 eV). Increase of the carbon nitride synthesis temperature to 600°C leads to a change in the structure of the energy bands and to increase of the energy of the radiative transitions as a result of increase in the degree of doping with oxygen atoms and thermal stratifi cation. | ||
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10.1007/s10812-020-00954-y doi (DE-627)OLC2034692659 (DE-He213)s10812-020-00954-y-p DE-627 ger DE-627 rakwb eng 530 VZ 11 ssgn Chubenko, E. B. verfasserin aut Structure of Photoluminescence Spectra of Oxygen-Doped Graphitic Carbon Nitride 2020 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC, part of Springer Nature 2020 The relationships governing variation of the photoluminescence of graphitic carbon nitride synthesized by heat treatment of melamine in a closed air medium containing oxygen in the temperature range of 10–300 K were investigated. It was shown that the concentration of oxygen in the obtained material 4–5 at.% increases with increase of temperature and decreases with increase in the duration of the synthesis process. By measurements at reduced temperatures right down to 10 K it was possible to resolve bands due to radiative recombination processes in the photoluminescence spectra of the graphitic carbon nitride. It was found that increase of the synthesis temperature from 500 to 600°C and also increase of the duration at the given temperature from 30 to 240 min shift the maximum in the photoluminescence spectrum from 2.74 eV into the region of lower energies to 2.71–2.67 eV. This is due to the bigger role of the molecular system formed by the π bonds of carbon and nitrogen atoms with $ sp^{2} $ hybridization and characterized by a smaller forbidden band width in the emission of light. Transitions due to recombination through oxygen-induced levels in the forbidden band of the semiconductor lead to the appearance of a "tail" in the photoluminescence spectra in the region of low energies (2.40–2.33 eV). Increase of the carbon nitride synthesis temperature to 600°C leads to a change in the structure of the energy bands and to increase of the energy of the radiative transitions as a result of increase in the degree of doping with oxygen atoms and thermal stratifi cation. carbon nitride melamine photoluminescence Baglov, A. V. aut Leonenya, M. S. aut Yablonskii, G. P. aut Borisenko, V. E. aut Enthalten in Journal of applied spectroscopy Springer US, 1966 87(2020), 1 vom: März, Seite 9-14 (DE-627)129972495 (DE-600)410515-1 (DE-576)015535800 0021-9037 nnns volume:87 year:2020 number:1 month:03 pages:9-14 https://doi.org/10.1007/s10812-020-00954-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OLC-CHE AR 87 2020 1 03 9-14 |
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10.1007/s10812-020-00954-y doi (DE-627)OLC2034692659 (DE-He213)s10812-020-00954-y-p DE-627 ger DE-627 rakwb eng 530 VZ 11 ssgn Chubenko, E. B. verfasserin aut Structure of Photoluminescence Spectra of Oxygen-Doped Graphitic Carbon Nitride 2020 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC, part of Springer Nature 2020 The relationships governing variation of the photoluminescence of graphitic carbon nitride synthesized by heat treatment of melamine in a closed air medium containing oxygen in the temperature range of 10–300 K were investigated. It was shown that the concentration of oxygen in the obtained material 4–5 at.% increases with increase of temperature and decreases with increase in the duration of the synthesis process. By measurements at reduced temperatures right down to 10 K it was possible to resolve bands due to radiative recombination processes in the photoluminescence spectra of the graphitic carbon nitride. It was found that increase of the synthesis temperature from 500 to 600°C and also increase of the duration at the given temperature from 30 to 240 min shift the maximum in the photoluminescence spectrum from 2.74 eV into the region of lower energies to 2.71–2.67 eV. This is due to the bigger role of the molecular system formed by the π bonds of carbon and nitrogen atoms with $ sp^{2} $ hybridization and characterized by a smaller forbidden band width in the emission of light. Transitions due to recombination through oxygen-induced levels in the forbidden band of the semiconductor lead to the appearance of a "tail" in the photoluminescence spectra in the region of low energies (2.40–2.33 eV). Increase of the carbon nitride synthesis temperature to 600°C leads to a change in the structure of the energy bands and to increase of the energy of the radiative transitions as a result of increase in the degree of doping with oxygen atoms and thermal stratifi cation. carbon nitride melamine photoluminescence Baglov, A. V. aut Leonenya, M. S. aut Yablonskii, G. P. aut Borisenko, V. E. aut Enthalten in Journal of applied spectroscopy Springer US, 1966 87(2020), 1 vom: März, Seite 9-14 (DE-627)129972495 (DE-600)410515-1 (DE-576)015535800 0021-9037 nnns volume:87 year:2020 number:1 month:03 pages:9-14 https://doi.org/10.1007/s10812-020-00954-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OLC-CHE AR 87 2020 1 03 9-14 |
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10.1007/s10812-020-00954-y doi (DE-627)OLC2034692659 (DE-He213)s10812-020-00954-y-p DE-627 ger DE-627 rakwb eng 530 VZ 11 ssgn Chubenko, E. B. verfasserin aut Structure of Photoluminescence Spectra of Oxygen-Doped Graphitic Carbon Nitride 2020 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC, part of Springer Nature 2020 The relationships governing variation of the photoluminescence of graphitic carbon nitride synthesized by heat treatment of melamine in a closed air medium containing oxygen in the temperature range of 10–300 K were investigated. It was shown that the concentration of oxygen in the obtained material 4–5 at.% increases with increase of temperature and decreases with increase in the duration of the synthesis process. By measurements at reduced temperatures right down to 10 K it was possible to resolve bands due to radiative recombination processes in the photoluminescence spectra of the graphitic carbon nitride. It was found that increase of the synthesis temperature from 500 to 600°C and also increase of the duration at the given temperature from 30 to 240 min shift the maximum in the photoluminescence spectrum from 2.74 eV into the region of lower energies to 2.71–2.67 eV. This is due to the bigger role of the molecular system formed by the π bonds of carbon and nitrogen atoms with $ sp^{2} $ hybridization and characterized by a smaller forbidden band width in the emission of light. Transitions due to recombination through oxygen-induced levels in the forbidden band of the semiconductor lead to the appearance of a "tail" in the photoluminescence spectra in the region of low energies (2.40–2.33 eV). Increase of the carbon nitride synthesis temperature to 600°C leads to a change in the structure of the energy bands and to increase of the energy of the radiative transitions as a result of increase in the degree of doping with oxygen atoms and thermal stratifi cation. carbon nitride melamine photoluminescence Baglov, A. V. aut Leonenya, M. S. aut Yablonskii, G. P. aut Borisenko, V. E. aut Enthalten in Journal of applied spectroscopy Springer US, 1966 87(2020), 1 vom: März, Seite 9-14 (DE-627)129972495 (DE-600)410515-1 (DE-576)015535800 0021-9037 nnns volume:87 year:2020 number:1 month:03 pages:9-14 https://doi.org/10.1007/s10812-020-00954-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OLC-CHE AR 87 2020 1 03 9-14 |
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10.1007/s10812-020-00954-y doi (DE-627)OLC2034692659 (DE-He213)s10812-020-00954-y-p DE-627 ger DE-627 rakwb eng 530 VZ 11 ssgn Chubenko, E. B. verfasserin aut Structure of Photoluminescence Spectra of Oxygen-Doped Graphitic Carbon Nitride 2020 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC, part of Springer Nature 2020 The relationships governing variation of the photoluminescence of graphitic carbon nitride synthesized by heat treatment of melamine in a closed air medium containing oxygen in the temperature range of 10–300 K were investigated. It was shown that the concentration of oxygen in the obtained material 4–5 at.% increases with increase of temperature and decreases with increase in the duration of the synthesis process. By measurements at reduced temperatures right down to 10 K it was possible to resolve bands due to radiative recombination processes in the photoluminescence spectra of the graphitic carbon nitride. It was found that increase of the synthesis temperature from 500 to 600°C and also increase of the duration at the given temperature from 30 to 240 min shift the maximum in the photoluminescence spectrum from 2.74 eV into the region of lower energies to 2.71–2.67 eV. This is due to the bigger role of the molecular system formed by the π bonds of carbon and nitrogen atoms with $ sp^{2} $ hybridization and characterized by a smaller forbidden band width in the emission of light. Transitions due to recombination through oxygen-induced levels in the forbidden band of the semiconductor lead to the appearance of a "tail" in the photoluminescence spectra in the region of low energies (2.40–2.33 eV). Increase of the carbon nitride synthesis temperature to 600°C leads to a change in the structure of the energy bands and to increase of the energy of the radiative transitions as a result of increase in the degree of doping with oxygen atoms and thermal stratifi cation. carbon nitride melamine photoluminescence Baglov, A. V. aut Leonenya, M. S. aut Yablonskii, G. P. aut Borisenko, V. E. aut Enthalten in Journal of applied spectroscopy Springer US, 1966 87(2020), 1 vom: März, Seite 9-14 (DE-627)129972495 (DE-600)410515-1 (DE-576)015535800 0021-9037 nnns volume:87 year:2020 number:1 month:03 pages:9-14 https://doi.org/10.1007/s10812-020-00954-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OLC-CHE AR 87 2020 1 03 9-14 |
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10.1007/s10812-020-00954-y doi (DE-627)OLC2034692659 (DE-He213)s10812-020-00954-y-p DE-627 ger DE-627 rakwb eng 530 VZ 11 ssgn Chubenko, E. B. verfasserin aut Structure of Photoluminescence Spectra of Oxygen-Doped Graphitic Carbon Nitride 2020 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Springer Science+Business Media, LLC, part of Springer Nature 2020 The relationships governing variation of the photoluminescence of graphitic carbon nitride synthesized by heat treatment of melamine in a closed air medium containing oxygen in the temperature range of 10–300 K were investigated. It was shown that the concentration of oxygen in the obtained material 4–5 at.% increases with increase of temperature and decreases with increase in the duration of the synthesis process. By measurements at reduced temperatures right down to 10 K it was possible to resolve bands due to radiative recombination processes in the photoluminescence spectra of the graphitic carbon nitride. It was found that increase of the synthesis temperature from 500 to 600°C and also increase of the duration at the given temperature from 30 to 240 min shift the maximum in the photoluminescence spectrum from 2.74 eV into the region of lower energies to 2.71–2.67 eV. This is due to the bigger role of the molecular system formed by the π bonds of carbon and nitrogen atoms with $ sp^{2} $ hybridization and characterized by a smaller forbidden band width in the emission of light. Transitions due to recombination through oxygen-induced levels in the forbidden band of the semiconductor lead to the appearance of a "tail" in the photoluminescence spectra in the region of low energies (2.40–2.33 eV). Increase of the carbon nitride synthesis temperature to 600°C leads to a change in the structure of the energy bands and to increase of the energy of the radiative transitions as a result of increase in the degree of doping with oxygen atoms and thermal stratifi cation. carbon nitride melamine photoluminescence Baglov, A. V. aut Leonenya, M. S. aut Yablonskii, G. P. aut Borisenko, V. E. aut Enthalten in Journal of applied spectroscopy Springer US, 1966 87(2020), 1 vom: März, Seite 9-14 (DE-627)129972495 (DE-600)410515-1 (DE-576)015535800 0021-9037 nnns volume:87 year:2020 number:1 month:03 pages:9-14 https://doi.org/10.1007/s10812-020-00954-y lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-PHY SSG-OLC-CHE AR 87 2020 1 03 9-14 |
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structure of photoluminescence spectra of oxygen-doped graphitic carbon nitride |
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Structure of Photoluminescence Spectra of Oxygen-Doped Graphitic Carbon Nitride |
| abstract |
The relationships governing variation of the photoluminescence of graphitic carbon nitride synthesized by heat treatment of melamine in a closed air medium containing oxygen in the temperature range of 10–300 K were investigated. It was shown that the concentration of oxygen in the obtained material 4–5 at.% increases with increase of temperature and decreases with increase in the duration of the synthesis process. By measurements at reduced temperatures right down to 10 K it was possible to resolve bands due to radiative recombination processes in the photoluminescence spectra of the graphitic carbon nitride. It was found that increase of the synthesis temperature from 500 to 600°C and also increase of the duration at the given temperature from 30 to 240 min shift the maximum in the photoluminescence spectrum from 2.74 eV into the region of lower energies to 2.71–2.67 eV. This is due to the bigger role of the molecular system formed by the π bonds of carbon and nitrogen atoms with $ sp^{2} $ hybridization and characterized by a smaller forbidden band width in the emission of light. Transitions due to recombination through oxygen-induced levels in the forbidden band of the semiconductor lead to the appearance of a "tail" in the photoluminescence spectra in the region of low energies (2.40–2.33 eV). Increase of the carbon nitride synthesis temperature to 600°C leads to a change in the structure of the energy bands and to increase of the energy of the radiative transitions as a result of increase in the degree of doping with oxygen atoms and thermal stratifi cation. © Springer Science+Business Media, LLC, part of Springer Nature 2020 |
| abstractGer |
The relationships governing variation of the photoluminescence of graphitic carbon nitride synthesized by heat treatment of melamine in a closed air medium containing oxygen in the temperature range of 10–300 K were investigated. It was shown that the concentration of oxygen in the obtained material 4–5 at.% increases with increase of temperature and decreases with increase in the duration of the synthesis process. By measurements at reduced temperatures right down to 10 K it was possible to resolve bands due to radiative recombination processes in the photoluminescence spectra of the graphitic carbon nitride. It was found that increase of the synthesis temperature from 500 to 600°C and also increase of the duration at the given temperature from 30 to 240 min shift the maximum in the photoluminescence spectrum from 2.74 eV into the region of lower energies to 2.71–2.67 eV. This is due to the bigger role of the molecular system formed by the π bonds of carbon and nitrogen atoms with $ sp^{2} $ hybridization and characterized by a smaller forbidden band width in the emission of light. Transitions due to recombination through oxygen-induced levels in the forbidden band of the semiconductor lead to the appearance of a "tail" in the photoluminescence spectra in the region of low energies (2.40–2.33 eV). Increase of the carbon nitride synthesis temperature to 600°C leads to a change in the structure of the energy bands and to increase of the energy of the radiative transitions as a result of increase in the degree of doping with oxygen atoms and thermal stratifi cation. © Springer Science+Business Media, LLC, part of Springer Nature 2020 |
| abstract_unstemmed |
The relationships governing variation of the photoluminescence of graphitic carbon nitride synthesized by heat treatment of melamine in a closed air medium containing oxygen in the temperature range of 10–300 K were investigated. It was shown that the concentration of oxygen in the obtained material 4–5 at.% increases with increase of temperature and decreases with increase in the duration of the synthesis process. By measurements at reduced temperatures right down to 10 K it was possible to resolve bands due to radiative recombination processes in the photoluminescence spectra of the graphitic carbon nitride. It was found that increase of the synthesis temperature from 500 to 600°C and also increase of the duration at the given temperature from 30 to 240 min shift the maximum in the photoluminescence spectrum from 2.74 eV into the region of lower energies to 2.71–2.67 eV. This is due to the bigger role of the molecular system formed by the π bonds of carbon and nitrogen atoms with $ sp^{2} $ hybridization and characterized by a smaller forbidden band width in the emission of light. Transitions due to recombination through oxygen-induced levels in the forbidden band of the semiconductor lead to the appearance of a "tail" in the photoluminescence spectra in the region of low energies (2.40–2.33 eV). Increase of the carbon nitride synthesis temperature to 600°C leads to a change in the structure of the energy bands and to increase of the energy of the radiative transitions as a result of increase in the degree of doping with oxygen atoms and thermal stratifi cation. © Springer Science+Business Media, LLC, part of Springer Nature 2020 |
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| title_short |
Structure of Photoluminescence Spectra of Oxygen-Doped Graphitic Carbon Nitride |
| url |
https://doi.org/10.1007/s10812-020-00954-y |
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| author2 |
Baglov, A. V. Leonenya, M. S. Yablonskii, G. P. Borisenko, V. E. |
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Baglov, A. V. Leonenya, M. S. Yablonskii, G. P. Borisenko, V. E. |
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| doi_str |
10.1007/s10812-020-00954-y |
| up_date |
2024-07-03T22:02:51.093Z |
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