Multimaterial fiber electronics via convergence thermal drawing and cold drawing
Fibers are in every aspect of human life. However, they have surprisingly evolved less in technological functions to date. With outstanding mechanical flexibility and structural robustness, fibers are promising candidates in electronics. The realization of fiber electronics requires a challenging in...
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| Format: | Thesis-Doctor of Philosophy |
| Language: | English |
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Nanyang Technological University
2021
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| Online Access: | https://hdl.handle.net/10356/152286 |
| _version_ | 1811693913440780288 |
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| author | Wang, Zhixun |
| author2 | Wei Lei |
| author_facet | Wei Lei Wang, Zhixun |
| author_sort | Wang, Zhixun |
| collection | NTU |
| description | Fibers are in every aspect of human life. However, they have surprisingly evolved less in technological functions to date. With outstanding mechanical flexibility and structural robustness, fibers are promising candidates in electronics. The realization of fiber electronics requires a challenging integration of multiple materials. Among varying approaches, thermal drawing can produce multimaterial fibers with sophisticated structures at an extended length. However, it requires all selected materials to soften or melt into viscous flows with matched viscosities at drawing temperature. This thesis addresses the challenges of co-drawing soft polymers and solid materials that do not soften or melt in the process via convergence thermal drawing. Monolithic fiber photodetector is demonstrated. Further, we utilize the mechanical mismatch between the different materials to create in-fiber structures by cold drawing. We also extend the study of this intriguing mechanical instability to two-dimensional materials/polymer composites and demonstrate a simple yet effective tool for nanomaterials structuring. |
| first_indexed | 2024-10-01T06:59:14Z |
| format | Thesis-Doctor of Philosophy |
| id | ntu-10356/152286 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T06:59:14Z |
| publishDate | 2021 |
| publisher | Nanyang Technological University |
| record_format | dspace |
| spelling | ntu-10356/1522862023-09-08T04:10:51Z Multimaterial fiber electronics via convergence thermal drawing and cold drawing Wang, Zhixun Wei Lei School of Electrical and Electronic Engineering Centre for Optical Fibre Technology wei.lei@ntu.edu.sg Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics Science::Physics Fibers are in every aspect of human life. However, they have surprisingly evolved less in technological functions to date. With outstanding mechanical flexibility and structural robustness, fibers are promising candidates in electronics. The realization of fiber electronics requires a challenging integration of multiple materials. Among varying approaches, thermal drawing can produce multimaterial fibers with sophisticated structures at an extended length. However, it requires all selected materials to soften or melt into viscous flows with matched viscosities at drawing temperature. This thesis addresses the challenges of co-drawing soft polymers and solid materials that do not soften or melt in the process via convergence thermal drawing. Monolithic fiber photodetector is demonstrated. Further, we utilize the mechanical mismatch between the different materials to create in-fiber structures by cold drawing. We also extend the study of this intriguing mechanical instability to two-dimensional materials/polymer composites and demonstrate a simple yet effective tool for nanomaterials structuring. Doctor of Philosophy 2021-08-04T02:16:37Z 2021-08-04T02:16:37Z 2021 Thesis-Doctor of Philosophy Wang, Z. (2021). Multimaterial fiber electronics via convergence thermal drawing and cold drawing. Doctoral thesis, Nanyang Technological University, Singapore. https://hdl.handle.net/10356/152286 https://hdl.handle.net/10356/152286 10.32657/10356/152286 en This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0). application/pdf Nanyang Technological University |
| spellingShingle | Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics Science::Physics Wang, Zhixun Multimaterial fiber electronics via convergence thermal drawing and cold drawing |
| title | Multimaterial fiber electronics via convergence thermal drawing and cold drawing |
| title_full | Multimaterial fiber electronics via convergence thermal drawing and cold drawing |
| title_fullStr | Multimaterial fiber electronics via convergence thermal drawing and cold drawing |
| title_full_unstemmed | Multimaterial fiber electronics via convergence thermal drawing and cold drawing |
| title_short | Multimaterial fiber electronics via convergence thermal drawing and cold drawing |
| title_sort | multimaterial fiber electronics via convergence thermal drawing and cold drawing |
| topic | Engineering::Electrical and electronic engineering::Optics, optoelectronics, photonics Science::Physics |
| url | https://hdl.handle.net/10356/152286 |
| work_keys_str_mv | AT wangzhixun multimaterialfiberelectronicsviaconvergencethermaldrawingandcolddrawing |