Photothermal Laser Printing of Sub‐Micrometer Crystalline ZnO Structures
Abstract During light‐driven 3D additive manufacturing, an object represented in digital form is initially translated into a spatial distribution of light intensity (sequentially or in parallel), which then results in a spatial material distribution. To date, this process typically proceeds by photo...
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Wiley
2025-01-01
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| Online Access: | https://doi.org/10.1002/advs.202410771 |
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| author | Matthias Steurer Paul Somers Kristian Kraft Lukas Grünewald Steven Kraus Florian Feist Bastian Weinert Erich Müller Stefanie Dehnen Claus Feldmann Yolita M. Eggeler Christopher Barner‐Kowollik Martin Wegener |
| author_facet | Matthias Steurer Paul Somers Kristian Kraft Lukas Grünewald Steven Kraus Florian Feist Bastian Weinert Erich Müller Stefanie Dehnen Claus Feldmann Yolita M. Eggeler Christopher Barner‐Kowollik Martin Wegener |
| author_sort | Matthias Steurer |
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| description | Abstract During light‐driven 3D additive manufacturing, an object represented in digital form is initially translated into a spatial distribution of light intensity (sequentially or in parallel), which then results in a spatial material distribution. To date, this process typically proceeds by photoexcitation of small functional molecules, leading to photochemically induced crosslinking of soft materials. Alternatively, thermal triggers can be employed, yet thermal processes are often slow and provide only low spatial localization. Nevertheless, sub‐micrometer ZnO structures for functional microelectronic devices have recently been laser‐printed. Herein, the photothermal laser‐printing of ZnO is advanced by i) introducing single‐crystalline rather than amorphous sub‐micrometer ZnO shapes that crystallize in the hexagonal ZnO wurtzite structure, ii) employing dimethyl sulfoxide (DMSO) instead of water, enabling higher local process temperatures without micro‐bubble formation, and iii) using substrates tailored for light absorption and heat management, resolving the challenge of light to heat conversion. Finally, the herein‐demonstrated ZnO printing requires no post‐processing and is a cleanroom‐free technique for the fabrication of crystalline semiconductors. |
| format | Article |
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| institution | Kabale University |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
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| series | Advanced Science |
| spelling | doaj-art-adcdbaab2bf64b6980b9ccba956c6eac2025-01-29T09:50:19ZengWileyAdvanced Science2198-38442025-01-01124n/an/a10.1002/advs.202410771Photothermal Laser Printing of Sub‐Micrometer Crystalline ZnO StructuresMatthias Steurer0Paul Somers1Kristian Kraft2Lukas Grünewald3Steven Kraus4Florian Feist5Bastian Weinert6Erich Müller7Stefanie Dehnen8Claus Feldmann9Yolita M. Eggeler10Christopher Barner‐Kowollik11Martin Wegener12School of Chemistry and Physics and Centre for Materials Science Queensland University of Technology (QUT) 2 George Street Brisbane QLD 4000 AustraliaInstitute of Nanotechnology (INT) Karlsruhe Institute of Technology (KIT) 76131 Karlsruhe GermanyLaboratory for Electron Microscopy (LEM) Karlsruhe Institute of Technology (KIT) 76131 Karlsruhe GermanyLaboratory for Electron Microscopy (LEM) Karlsruhe Institute of Technology (KIT) 76131 Karlsruhe GermanyInstitute of Nanotechnology (INT) Karlsruhe Institute of Technology (KIT) 76131 Karlsruhe GermanyInstitute of Nanotechnology (INT) Karlsruhe Institute of Technology (KIT) 76131 Karlsruhe GermanyInstitute of Nanotechnology (INT) Karlsruhe Institute of Technology (KIT) 76131 Karlsruhe GermanyLaboratory for Electron Microscopy (LEM) Karlsruhe Institute of Technology (KIT) 76131 Karlsruhe GermanyInstitute of Nanotechnology (INT) Karlsruhe Institute of Technology (KIT) 76131 Karlsruhe GermanyInstitute of Inorganic Chemistry (AOC) Karlsruhe Institute of Technology (KIT) 76131 Karlsruhe GermanyLaboratory for Electron Microscopy (LEM) Karlsruhe Institute of Technology (KIT) 76131 Karlsruhe GermanySchool of Chemistry and Physics and Centre for Materials Science Queensland University of Technology (QUT) 2 George Street Brisbane QLD 4000 AustraliaInstitute of Nanotechnology (INT) Karlsruhe Institute of Technology (KIT) 76131 Karlsruhe GermanyAbstract During light‐driven 3D additive manufacturing, an object represented in digital form is initially translated into a spatial distribution of light intensity (sequentially or in parallel), which then results in a spatial material distribution. To date, this process typically proceeds by photoexcitation of small functional molecules, leading to photochemically induced crosslinking of soft materials. Alternatively, thermal triggers can be employed, yet thermal processes are often slow and provide only low spatial localization. Nevertheless, sub‐micrometer ZnO structures for functional microelectronic devices have recently been laser‐printed. Herein, the photothermal laser‐printing of ZnO is advanced by i) introducing single‐crystalline rather than amorphous sub‐micrometer ZnO shapes that crystallize in the hexagonal ZnO wurtzite structure, ii) employing dimethyl sulfoxide (DMSO) instead of water, enabling higher local process temperatures without micro‐bubble formation, and iii) using substrates tailored for light absorption and heat management, resolving the challenge of light to heat conversion. Finally, the herein‐demonstrated ZnO printing requires no post‐processing and is a cleanroom‐free technique for the fabrication of crystalline semiconductors.https://doi.org/10.1002/advs.202410771electron backscatter diffractionlight‐to‐heat conversionphotothermal laser‐induced printingsingle crystallinetransmission electron microscopyzinc oxide |
| spellingShingle | Matthias Steurer Paul Somers Kristian Kraft Lukas Grünewald Steven Kraus Florian Feist Bastian Weinert Erich Müller Stefanie Dehnen Claus Feldmann Yolita M. Eggeler Christopher Barner‐Kowollik Martin Wegener Photothermal Laser Printing of Sub‐Micrometer Crystalline ZnO Structures Advanced Science electron backscatter diffraction light‐to‐heat conversion photothermal laser‐induced printing single crystalline transmission electron microscopy zinc oxide |
| title | Photothermal Laser Printing of Sub‐Micrometer Crystalline ZnO Structures |
| title_full | Photothermal Laser Printing of Sub‐Micrometer Crystalline ZnO Structures |
| title_fullStr | Photothermal Laser Printing of Sub‐Micrometer Crystalline ZnO Structures |
| title_full_unstemmed | Photothermal Laser Printing of Sub‐Micrometer Crystalline ZnO Structures |
| title_short | Photothermal Laser Printing of Sub‐Micrometer Crystalline ZnO Structures |
| title_sort | photothermal laser printing of sub micrometer crystalline zno structures |
| topic | electron backscatter diffraction light‐to‐heat conversion photothermal laser‐induced printing single crystalline transmission electron microscopy zinc oxide |
| url | https://doi.org/10.1002/advs.202410771 |
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