Optical Visualization of Stretchable Serpentine Interconnects using Chiral Liquid Crystal Elastomers
Abstract The shapes and structures of stretchable interconnects are pivotal in determining their functionality, allowing them to withstand bending, stretching, and twisting while maintaining their operational integrity. However, all stretchable interconnects are subjected to dynamically changing, no...
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Wiley
2025-01-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202408346 |
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| author | Sang Hyun Han Jun Hyuk Shin Hak Jun Yang Seungmin Nam Ji Yoon Park Su Seok Choi |
| author_facet | Sang Hyun Han Jun Hyuk Shin Hak Jun Yang Seungmin Nam Ji Yoon Park Su Seok Choi |
| author_sort | Sang Hyun Han |
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| description | Abstract The shapes and structures of stretchable interconnects are pivotal in determining their functionality, allowing them to withstand bending, stretching, and twisting while maintaining their operational integrity. However, all stretchable interconnects are subjected to dynamically changing, non‐uniform strains during mechanical deformation. Therefore, achieving an accurate understanding of stretchable interconnect properties, including tracking and analyzing these dynamic, non‐uniform strains in real‐time, remains a challenging endeavor. Herein, a method for analyzing the strain behavior of stretchable interconnects using a chiral liquid crystal elastomer (CLCE), which exhibits immediate structural color changes of nano periodic molecular arrangement in response to dynamic stretching deformations, is presented. Beyond the uniform color change of simple CLCE, by further engineering the modulus and shape geometry of the serpentine CLCE, an intuitive strain capturing visualization of dynamically changing serpentine structures is performed. Moreover, by expanding the serpentine CLCE into a 2 × 2 array, the real‐time strain distribution of the stretchable interconnects under various multi‐stretching properties (uniaxial and biaxial) is investigated. This optical visualization provides an accurate and precise understanding of the structure of stretchable interconnects under dynamic stretching conditions and is a promising breakthrough to enable enhanced design and optimization of stretchable serpentine structures for broadband stretchable applications. |
| format | Article |
| id | doaj-art-80e1c5ccfc5e495a823bf7f73754c525 |
| institution | Kabale University |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
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| series | Advanced Science |
| spelling | doaj-art-80e1c5ccfc5e495a823bf7f73754c5252025-01-29T09:50:18ZengWileyAdvanced Science2198-38442025-01-01124n/an/a10.1002/advs.202408346Optical Visualization of Stretchable Serpentine Interconnects using Chiral Liquid Crystal ElastomersSang Hyun Han0Jun Hyuk Shin1Hak Jun Yang2Seungmin Nam3Ji Yoon Park4Su Seok Choi5Department of Electrical Engineering Pohang University of Science and Technology (POSTECH) 77 Cheongam‐Ro, Nam Gu Pohang Gyeongbuk 37673 Republic of KoreaDepartment of Electrical Engineering Pohang University of Science and Technology (POSTECH) 77 Cheongam‐Ro, Nam Gu Pohang Gyeongbuk 37673 Republic of KoreaDepartment of Electrical Engineering Pohang University of Science and Technology (POSTECH) 77 Cheongam‐Ro, Nam Gu Pohang Gyeongbuk 37673 Republic of KoreaDepartment of Electrical Engineering Pohang University of Science and Technology (POSTECH) 77 Cheongam‐Ro, Nam Gu Pohang Gyeongbuk 37673 Republic of KoreaDepartment of Electrical Engineering Pohang University of Science and Technology (POSTECH) 77 Cheongam‐Ro, Nam Gu Pohang Gyeongbuk 37673 Republic of KoreaDepartment of Electrical Engineering Pohang University of Science and Technology (POSTECH) 77 Cheongam‐Ro, Nam Gu Pohang Gyeongbuk 37673 Republic of KoreaAbstract The shapes and structures of stretchable interconnects are pivotal in determining their functionality, allowing them to withstand bending, stretching, and twisting while maintaining their operational integrity. However, all stretchable interconnects are subjected to dynamically changing, non‐uniform strains during mechanical deformation. Therefore, achieving an accurate understanding of stretchable interconnect properties, including tracking and analyzing these dynamic, non‐uniform strains in real‐time, remains a challenging endeavor. Herein, a method for analyzing the strain behavior of stretchable interconnects using a chiral liquid crystal elastomer (CLCE), which exhibits immediate structural color changes of nano periodic molecular arrangement in response to dynamic stretching deformations, is presented. Beyond the uniform color change of simple CLCE, by further engineering the modulus and shape geometry of the serpentine CLCE, an intuitive strain capturing visualization of dynamically changing serpentine structures is performed. Moreover, by expanding the serpentine CLCE into a 2 × 2 array, the real‐time strain distribution of the stretchable interconnects under various multi‐stretching properties (uniaxial and biaxial) is investigated. This optical visualization provides an accurate and precise understanding of the structure of stretchable interconnects under dynamic stretching conditions and is a promising breakthrough to enable enhanced design and optimization of stretchable serpentine structures for broadband stretchable applications.https://doi.org/10.1002/advs.202408346chiral liquid crystal elastomersmechanochromicserpentine structurestretchable electronicsstretchable interconnects |
| spellingShingle | Sang Hyun Han Jun Hyuk Shin Hak Jun Yang Seungmin Nam Ji Yoon Park Su Seok Choi Optical Visualization of Stretchable Serpentine Interconnects using Chiral Liquid Crystal Elastomers Advanced Science chiral liquid crystal elastomers mechanochromic serpentine structure stretchable electronics stretchable interconnects |
| title | Optical Visualization of Stretchable Serpentine Interconnects using Chiral Liquid Crystal Elastomers |
| title_full | Optical Visualization of Stretchable Serpentine Interconnects using Chiral Liquid Crystal Elastomers |
| title_fullStr | Optical Visualization of Stretchable Serpentine Interconnects using Chiral Liquid Crystal Elastomers |
| title_full_unstemmed | Optical Visualization of Stretchable Serpentine Interconnects using Chiral Liquid Crystal Elastomers |
| title_short | Optical Visualization of Stretchable Serpentine Interconnects using Chiral Liquid Crystal Elastomers |
| title_sort | optical visualization of stretchable serpentine interconnects using chiral liquid crystal elastomers |
| topic | chiral liquid crystal elastomers mechanochromic serpentine structure stretchable electronics stretchable interconnects |
| url | https://doi.org/10.1002/advs.202408346 |
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