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The effect of line-by-line laser scanning on the properties of laser-induced grapheneстатья
- Авторы: Mikheev K.G., Zonov R.G., Syugaev A.V., Bulatov D.L., Mikheev G.M.
- Журнал: Physics of the Solid State
- Том: 64
- Номер: 5
- Год издания: 2022
- Издательство: Pleiades Publishing, Ltd
- Местоположение издательства: Road Town, United Kingdom
- Первая страница: 579
- Последняя страница: 587
- DOI: 10.21883/pss.2022.05.53520.277
- Аннотация: Technology of polyimide (PI) film carbonization by direct laser treatment attracts much attention due to the versatility and ease of obtaining the carbon material, laser-induced graphene (LIG), used in the creation of various sensors and functional devices. In this work LIG film structures are obtained by line-by-line scanning of a cw CO2 laser beam over the surface of the PI film. The synthesized carbon film material is studied by optical and scanning electron microscopy, X-ray photoelectron spectroscopy and Raman spectroscopy. It is shown that the Raman spectra of a single LIG line and a set of overlapping LIG lines significantly differ from each other. It is found that multiple laser scanning of the PI film leads to a marked decrease in the number of defects in the LIG structure as well as to a significant decrease in the specific surface resistance of the synthesized film material. The results obtained can be used in the synthesis of LIG film structures with improved characteristics. Keywords: laser-induced graphene, polyimide film, line-by-line laser scanning.
- Добавил в систему: Михеев Константин Георгиевич