Photochemistry dominates over photothermal effects in the laser-induced reduction of graphene oxide by visible light
| Parent link: | Nature Communications.— .— New York: Springer Nature Vol. 15, iss. 1.— 2024.— Article number 9711, 13 p. |
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| Beste egile batzuk: | , , , , , , , , , |
| Gaia: | Title screen Graphene oxide (GO) possesses specific properties that are revolutionizing materials science, with applications extending from flexible electronics to advanced nanotechnology. A key method for harnessing GO’s potential is its laser-induced reduction, yet the exact mechanisms — photothermal versus photochemical effects — remain unclear. Herein, we discover the dominant role of photochemical reactions in the laser reduction of GO under visible light, challenging the prevailing assumption that photothermal effects are dominant. Employing a combination of Raman thermometry, X-ray photoelectron and photoluminescence spectroscopies, and electrical atomic force microscopy, we quantify the temperature and map the reduction process across micro and nano scales. Our findings demonstrate that the photochemical cleavage of oxygen-containing groups below a reduction threshold temperature is a decisive factor in GO reduction, leading to distinct characteristics that cannot be replicated by heating alone. This work clarifies the fundamental mechanisms of GO transformation under visible laser irradiation, highlighting the dominant role of photochemical processes. Distinguishing these subtleties enables the development of laser-reduced GO platforms for graphene-based applications compatible with industrial scales. We illustrate this potential by encoding information on GO surfaces as optical storage, allowing us to write binary sequences in long-term memory encoding invisible even through an optical microscope Текстовый файл AM_Agreement |
| Hizkuntza: | ingelesa |
| Argitaratua: |
2024
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| Gaiak: | |
| Sarrera elektronikoa: | https://doi.org/10.1038/s41467-024-53503-y |
| Formatua: | Baliabide elektronikoa Liburu kapitulua |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=680861 |
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| 200 | 1 | |a Photochemistry dominates over photothermal effects in the laser-induced reduction of graphene oxide by visible light |f Maxim Fatkullin, Dmitry Cheshev, Andrey Averkiev [et al.] | |
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| 300 | |a Title screen | ||
| 320 | |a References: 44 tit | ||
| 330 | |a Graphene oxide (GO) possesses specific properties that are revolutionizing materials science, with applications extending from flexible electronics to advanced nanotechnology. A key method for harnessing GO’s potential is its laser-induced reduction, yet the exact mechanisms — photothermal versus photochemical effects — remain unclear. Herein, we discover the dominant role of photochemical reactions in the laser reduction of GO under visible light, challenging the prevailing assumption that photothermal effects are dominant. Employing a combination of Raman thermometry, X-ray photoelectron and photoluminescence spectroscopies, and electrical atomic force microscopy, we quantify the temperature and map the reduction process across micro and nano scales. Our findings demonstrate that the photochemical cleavage of oxygen-containing groups below a reduction threshold temperature is a decisive factor in GO reduction, leading to distinct characteristics that cannot be replicated by heating alone. This work clarifies the fundamental mechanisms of GO transformation under visible laser irradiation, highlighting the dominant role of photochemical processes. Distinguishing these subtleties enables the development of laser-reduced GO platforms for graphene-based applications compatible with industrial scales. We illustrate this potential by encoding information on GO surfaces as optical storage, allowing us to write binary sequences in long-term memory encoding invisible even through an optical microscope | ||
| 336 | |a Текстовый файл | ||
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| 461 | 1 | |t Nature Communications |c New York |n Springer Nature | |
| 463 | 1 | |t Vol. 15, iss. 1 |v Article number 9711, 13 p. |d 2024 | |
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a Optical properties and devices | |
| 610 | 1 | |a Photochemistry | |
| 701 | 1 | |a Fatkullin |b M. I. |c chemical engineer |c Engineer of Tomsk Polytechnic University |f 1997- |g Maksim Ilgizovich |9 22844 | |
| 701 | 1 | |a Cheshev |b D. L. |c Specialist in the field of material science |c Engineer of Tomsk Polytechnic University |f 2000- |g Dmitry Leonidovich |9 22924 | |
| 701 | 1 | |a Averkiev |b A. A. |c Specialist in the field of electronics |c Research Engineer of Tomsk Polytechnic University |f 1996- |g Andrey Alekseevich |9 22723 | |
| 701 | 1 | |a Gorbunova |b A. |c chemical engineer |c engineer of Tomsk Polytechnic University |f 1998- |g Alina |9 22427 | |
| 701 | 1 | |a Murastov |b G. |g Gennadiy | |
| 701 | 0 | |a Liu Jianxi | |
| 701 | 1 | |a Postnikov |b P. S. |c organic chemist |c Associate Professor of Tomsk Polytechnic University, Candidate of chemical sciences |f 1984- |g Pavel Sergeevich |9 15465 | |
| 701 | 0 | |a Cheng Chong | |
| 701 | 1 | |a Rodriguez (Rodriges) Contreras |b R. D. |c Venezuelan physicist, doctor of science |c Professor of Tomsk Polytechnic University |f 1982- |g Raul David |9 21179 | |
| 701 | 1 | |a Sheremet |b E. S. |c physicist |c Professor of Tomsk Polytechnic University |f 1988- |g Evgeniya Sergeevna |9 21197 | |
| 801 | 0 | |a RU |b 63413507 |c 20250624 |g RCR | |
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