Direct Writing of graphene/graphitic foam through picosecond pulsed laser-induced transformation of soluble polyimide suspension
We report the direct writing of graphene/graphitic foam with high electrical conductivity using laser-induced-transformation of polyimide (PI) resin films on glass surfaces. Raman spectroscopy of the treated surfaces indicated that average laser power irradiation between 900 and 1500 kW/cm2 transfor...
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| Format: | Article |
| Language: | English |
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Elsevier
2024-12-01
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| Series: | Carbon Trends |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667056924000804 |
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| author | Ho-Won Noh Anirudha Karati Ikenna C. Nlebedim Pranav Shrotriya |
| author_facet | Ho-Won Noh Anirudha Karati Ikenna C. Nlebedim Pranav Shrotriya |
| author_sort | Ho-Won Noh |
| collection | DOAJ |
| description | We report the direct writing of graphene/graphitic foam with high electrical conductivity using laser-induced-transformation of polyimide (PI) resin films on glass surfaces. Raman spectroscopy of the treated surfaces indicated that average laser power irradiation between 900 and 1500 kW/cm2 transformed the PI film into a few layered graphene-dominated film, and the increase in irradiation power above 1500 kW/cm2 led to the formation of graphitic (multilayered graphene) material. The electrical conductivity of the transformed film was between 5800±750 S m-1 (lower power irradiation) and 1250±300 S m-1 (higher laser power irradiation). SEM imaging showed that the transformed material has a closed cell foam morphology enclosed between the smooth top and bottom layers. The results indicate that heat treatment of the polyimide suspension films, and subsequent ultra-short, pulsed laser irradiation resulted in a closed-cell graphene/graphitic foam with high electrical conductivity. The pore aspect ratio, density, and film conductivity are used to estimate the conductivity of the solid phases in the laser-treated films at different powers. Laser-induced transformation of the PI suspension into graphene/graphitic foam is conducive to additive manufacturing and may enable the direct printing of graphitic foam-based three-dimensional components. |
| format | Article |
| id | doaj-art-c36ca962fe3d480093f6f6c9b2e00a7f |
| institution | Kabale University |
| issn | 2667-0569 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Carbon Trends |
| spelling | doaj-art-c36ca962fe3d480093f6f6c9b2e00a7f2024-12-15T06:17:32ZengElsevierCarbon Trends2667-05692024-12-0117100399Direct Writing of graphene/graphitic foam through picosecond pulsed laser-induced transformation of soluble polyimide suspensionHo-Won Noh0Anirudha Karati1Ikenna C. Nlebedim2Pranav Shrotriya3Department of Mechanical Engineering, Iowa State University, Ames, IA, USADivision of Critical Materials, Ames National Laboratory of US DOE, Ames, IA, USADivision of Critical Materials, Ames National Laboratory of US DOE, Ames, IA, USADepartment of Mechanical Engineering, Iowa State University, Ames, IA, USA; Division of Critical Materials, Ames National Laboratory of US DOE, Ames, IA, USA; Corresponding author.We report the direct writing of graphene/graphitic foam with high electrical conductivity using laser-induced-transformation of polyimide (PI) resin films on glass surfaces. Raman spectroscopy of the treated surfaces indicated that average laser power irradiation between 900 and 1500 kW/cm2 transformed the PI film into a few layered graphene-dominated film, and the increase in irradiation power above 1500 kW/cm2 led to the formation of graphitic (multilayered graphene) material. The electrical conductivity of the transformed film was between 5800±750 S m-1 (lower power irradiation) and 1250±300 S m-1 (higher laser power irradiation). SEM imaging showed that the transformed material has a closed cell foam morphology enclosed between the smooth top and bottom layers. The results indicate that heat treatment of the polyimide suspension films, and subsequent ultra-short, pulsed laser irradiation resulted in a closed-cell graphene/graphitic foam with high electrical conductivity. The pore aspect ratio, density, and film conductivity are used to estimate the conductivity of the solid phases in the laser-treated films at different powers. Laser-induced transformation of the PI suspension into graphene/graphitic foam is conducive to additive manufacturing and may enable the direct printing of graphitic foam-based three-dimensional components.http://www.sciencedirect.com/science/article/pii/S2667056924000804GrapheneGraphiteHigh repetition ultrashort pulsed lasersLaser induced transformationClosed pore foamHigh electrical conductivity |
| spellingShingle | Ho-Won Noh Anirudha Karati Ikenna C. Nlebedim Pranav Shrotriya Direct Writing of graphene/graphitic foam through picosecond pulsed laser-induced transformation of soluble polyimide suspension Carbon Trends Graphene Graphite High repetition ultrashort pulsed lasers Laser induced transformation Closed pore foam High electrical conductivity |
| title | Direct Writing of graphene/graphitic foam through picosecond pulsed laser-induced transformation of soluble polyimide suspension |
| title_full | Direct Writing of graphene/graphitic foam through picosecond pulsed laser-induced transformation of soluble polyimide suspension |
| title_fullStr | Direct Writing of graphene/graphitic foam through picosecond pulsed laser-induced transformation of soluble polyimide suspension |
| title_full_unstemmed | Direct Writing of graphene/graphitic foam through picosecond pulsed laser-induced transformation of soluble polyimide suspension |
| title_short | Direct Writing of graphene/graphitic foam through picosecond pulsed laser-induced transformation of soluble polyimide suspension |
| title_sort | direct writing of graphene graphitic foam through picosecond pulsed laser induced transformation of soluble polyimide suspension |
| topic | Graphene Graphite High repetition ultrashort pulsed lasers Laser induced transformation Closed pore foam High electrical conductivity |
| url | http://www.sciencedirect.com/science/article/pii/S2667056924000804 |
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