Light patterning semiconductor nanoparticles by modulating surface charges
Abstract Optical patterning of colloidal particles is a scalable and cost-effective approach for creating multiscale functional structures. Existing methods often use high-intensity light sources and customized optical setups, making them less feasible for large-scale microfabrication processes. Her...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-11-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-53926-7 |
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| _version_ | 1846165134186119168 |
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| author | Xiaoli He Hongri Gu Yanmei Ma Yuhang Cai Huaide Jiang Yi Zhang Hanhan Xie Ming Yang Xinjian Fan Liang Guo Zhan Yang Chengzhi Hu |
| author_facet | Xiaoli He Hongri Gu Yanmei Ma Yuhang Cai Huaide Jiang Yi Zhang Hanhan Xie Ming Yang Xinjian Fan Liang Guo Zhan Yang Chengzhi Hu |
| author_sort | Xiaoli He |
| collection | DOAJ |
| description | Abstract Optical patterning of colloidal particles is a scalable and cost-effective approach for creating multiscale functional structures. Existing methods often use high-intensity light sources and customized optical setups, making them less feasible for large-scale microfabrication processes. Here, we report an optical patterning method for semiconductor nanoparticles by light-triggered modulation of their surface charge. Rather than using light as the primary energy source, this method utilizes UV-induced cleavage of surface ligands to modify surface charges, thereby facilitating the self-assembly of nanoparticles on a charged substrate via electrostatic interactions. By using citrate-treated ZnO nanoparticles, uniform ZnO patterns with variable thicknesses can be achieved. These multilayered ZnO patterns are fabricated into a UV detector with an on/off ratio exceeding 104. Our results demonstrate a simple yet effective way to pattern semiconductor nanoparticles, facilitating the large-scale integration of functional nanomaterials into emerging flexible and robotic microdevices. |
| format | Article |
| id | doaj-art-94f68e62cbbd46bbb7a2038e7e40e525 |
| institution | Kabale University |
| issn | 2041-1723 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj-art-94f68e62cbbd46bbb7a2038e7e40e5252024-11-17T12:35:30ZengNature PortfolioNature Communications2041-17232024-11-0115111410.1038/s41467-024-53926-7Light patterning semiconductor nanoparticles by modulating surface chargesXiaoli He0Hongri Gu1Yanmei Ma2Yuhang Cai3Huaide Jiang4Yi Zhang5Hanhan Xie6Ming Yang7Xinjian Fan8Liang Guo9Zhan Yang10Chengzhi Hu11Shenzhen Key Laboratory of Biomimetic Robotics and Intelligent Systems, Department of Mechanical and Energy Engineering, Southern University of Science and TechnologyDepartment of Physics, University of KonstanzShenzhen Key Laboratory of Biomimetic Robotics and Intelligent Systems, Department of Mechanical and Energy Engineering, Southern University of Science and TechnologyShenzhen Key Laboratory of Biomimetic Robotics and Intelligent Systems, Department of Mechanical and Energy Engineering, Southern University of Science and TechnologyShenzhen Key Laboratory of Biomimetic Robotics and Intelligent Systems, Department of Mechanical and Energy Engineering, Southern University of Science and TechnologyShenzhen Key Laboratory of Biomimetic Robotics and Intelligent Systems, Department of Mechanical and Energy Engineering, Southern University of Science and TechnologyShenzhen Key Laboratory of Biomimetic Robotics and Intelligent Systems, Department of Mechanical and Energy Engineering, Southern University of Science and TechnologyShenzhen Key Laboratory of Biomimetic Robotics and Intelligent Systems, Department of Mechanical and Energy Engineering, Southern University of Science and TechnologySchool of Mechanical and Electrical Engineering, Soochow UniversitySUSTech Energy Institute for Carbon Neutrality, Southern University of Science and TechnologySchool of Mechanical and Electrical Engineering, Soochow UniversityShenzhen Key Laboratory of Biomimetic Robotics and Intelligent Systems, Department of Mechanical and Energy Engineering, Southern University of Science and TechnologyAbstract Optical patterning of colloidal particles is a scalable and cost-effective approach for creating multiscale functional structures. Existing methods often use high-intensity light sources and customized optical setups, making them less feasible for large-scale microfabrication processes. Here, we report an optical patterning method for semiconductor nanoparticles by light-triggered modulation of their surface charge. Rather than using light as the primary energy source, this method utilizes UV-induced cleavage of surface ligands to modify surface charges, thereby facilitating the self-assembly of nanoparticles on a charged substrate via electrostatic interactions. By using citrate-treated ZnO nanoparticles, uniform ZnO patterns with variable thicknesses can be achieved. These multilayered ZnO patterns are fabricated into a UV detector with an on/off ratio exceeding 104. Our results demonstrate a simple yet effective way to pattern semiconductor nanoparticles, facilitating the large-scale integration of functional nanomaterials into emerging flexible and robotic microdevices.https://doi.org/10.1038/s41467-024-53926-7 |
| spellingShingle | Xiaoli He Hongri Gu Yanmei Ma Yuhang Cai Huaide Jiang Yi Zhang Hanhan Xie Ming Yang Xinjian Fan Liang Guo Zhan Yang Chengzhi Hu Light patterning semiconductor nanoparticles by modulating surface charges Nature Communications |
| title | Light patterning semiconductor nanoparticles by modulating surface charges |
| title_full | Light patterning semiconductor nanoparticles by modulating surface charges |
| title_fullStr | Light patterning semiconductor nanoparticles by modulating surface charges |
| title_full_unstemmed | Light patterning semiconductor nanoparticles by modulating surface charges |
| title_short | Light patterning semiconductor nanoparticles by modulating surface charges |
| title_sort | light patterning semiconductor nanoparticles by modulating surface charges |
| url | https://doi.org/10.1038/s41467-024-53926-7 |
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