The effect of atmospheric doping on pressure-dependent Raman scattering in supported graphene
Atmospheric doping of supported graphene was investigated by Raman scattering under different pressures. Various Raman spectra parameters were found to depend on the pressure and the substrate material. The results are interpreted in terms of atmospheric adsorption leading to a change in graphene ch...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Beilstein-Institut
2018-02-01
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| Series: | Beilstein Journal of Nanotechnology |
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| Online Access: | https://doi.org/10.3762/bjnano.9.65 |
| _version_ | 1819014406646792192 |
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| author | Egor A. Kolesov Mikhail S. Tivanov Olga V. Korolik Olesya O. Kapitanova Xiao Fu Hak Dong Cho Tae Won Kang Gennady N Panin |
| author_facet | Egor A. Kolesov Mikhail S. Tivanov Olga V. Korolik Olesya O. Kapitanova Xiao Fu Hak Dong Cho Tae Won Kang Gennady N Panin |
| author_sort | Egor A. Kolesov |
| collection | DOAJ |
| description | Atmospheric doping of supported graphene was investigated by Raman scattering under different pressures. Various Raman spectra parameters were found to depend on the pressure and the substrate material. The results are interpreted in terms of atmospheric adsorption leading to a change in graphene charge carrier density and the effect of the substrate on the electronic and phonon properties of graphene. It was found that adsorption of molecules from the atmosphere onto graphene doped with nitrogen (electron doping) compensates for the electron charge. Furthermore, the atmosphere-induced doping drastically decreases the spatial heterogeneity of charge carriers in graphene doped with nitrogen, while the opposite effect was observed for undoped samples. The results of this study should be taken into account for the development of sensors and nanoelectronic devices based on graphene. |
| first_indexed | 2024-12-21T02:15:20Z |
| format | Article |
| id | doaj.art-79ba28ece6ca459ca2d201524b734070 |
| institution | Directory Open Access Journal |
| issn | 2190-4286 |
| language | English |
| last_indexed | 2024-12-21T02:15:20Z |
| publishDate | 2018-02-01 |
| publisher | Beilstein-Institut |
| record_format | Article |
| series | Beilstein Journal of Nanotechnology |
| spelling | doaj.art-79ba28ece6ca459ca2d201524b7340702022-12-21T19:19:16ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862018-02-019170471010.3762/bjnano.9.652190-4286-9-65The effect of atmospheric doping on pressure-dependent Raman scattering in supported grapheneEgor A. Kolesov0Mikhail S. Tivanov1Olga V. Korolik2Olesya O. Kapitanova3Xiao Fu4Hak Dong Cho5Tae Won Kang6Gennady N Panin7Belarusian State University, 4 Nezavisimosti Av., 220030 Minsk, BelarusBelarusian State University, 4 Nezavisimosti Av., 220030 Minsk, BelarusBelarusian State University, 4 Nezavisimosti Av., 220030 Minsk, BelarusDepartment of Chemistry, Moscow State University, Leninskie Gory, 1, b.3, 119991, Moscow, RussiaDepartment of Physics, Quantum-Functional Semiconductor Research Center, Nano Information Technology Academy, Dongguk University, 3-26 Pildong, Junggu, 100-715, Seoul, KoreaDepartment of Physics, Quantum-Functional Semiconductor Research Center, Nano Information Technology Academy, Dongguk University, 3-26 Pildong, Junggu, 100-715, Seoul, KoreaDepartment of Physics, Quantum-Functional Semiconductor Research Center, Nano Information Technology Academy, Dongguk University, 3-26 Pildong, Junggu, 100-715, Seoul, KoreaDepartment of Physics, Quantum-Functional Semiconductor Research Center, Nano Information Technology Academy, Dongguk University, 3-26 Pildong, Junggu, 100-715, Seoul, KoreaAtmospheric doping of supported graphene was investigated by Raman scattering under different pressures. Various Raman spectra parameters were found to depend on the pressure and the substrate material. The results are interpreted in terms of atmospheric adsorption leading to a change in graphene charge carrier density and the effect of the substrate on the electronic and phonon properties of graphene. It was found that adsorption of molecules from the atmosphere onto graphene doped with nitrogen (electron doping) compensates for the electron charge. Furthermore, the atmosphere-induced doping drastically decreases the spatial heterogeneity of charge carriers in graphene doped with nitrogen, while the opposite effect was observed for undoped samples. The results of this study should be taken into account for the development of sensors and nanoelectronic devices based on graphene.https://doi.org/10.3762/bjnano.9.65adsorptiondopinggraphenepressureRaman spectroscopysubstrate |
| spellingShingle | Egor A. Kolesov Mikhail S. Tivanov Olga V. Korolik Olesya O. Kapitanova Xiao Fu Hak Dong Cho Tae Won Kang Gennady N Panin The effect of atmospheric doping on pressure-dependent Raman scattering in supported graphene Beilstein Journal of Nanotechnology adsorption doping graphene pressure Raman spectroscopy substrate |
| title | The effect of atmospheric doping on pressure-dependent Raman scattering in supported graphene |
| title_full | The effect of atmospheric doping on pressure-dependent Raman scattering in supported graphene |
| title_fullStr | The effect of atmospheric doping on pressure-dependent Raman scattering in supported graphene |
| title_full_unstemmed | The effect of atmospheric doping on pressure-dependent Raman scattering in supported graphene |
| title_short | The effect of atmospheric doping on pressure-dependent Raman scattering in supported graphene |
| title_sort | effect of atmospheric doping on pressure dependent raman scattering in supported graphene |
| topic | adsorption doping graphene pressure Raman spectroscopy substrate |
| url | https://doi.org/10.3762/bjnano.9.65 |
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