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Fan H, Wang K, Ding Y, Qiang Y, Yang Z, Xu H, Li M, Xu Z, Huang C. Core-Shell Composite Nanofibers with High Temperature Resistance, Hydrophobicity and Breathability for Efficient Daytime Passive Radiative Cooling. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2406987. [PMID: 39194411 DOI: 10.1002/adma.202406987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 08/10/2024] [Indexed: 08/29/2024]
Abstract
Radiative cooling technology, which is renowned for its ability to dissipate heat without energy consumption, has garnered immense interest. However, achieving high performance, multifunctionality, and smart integration while addressing challenges such as film thickness and enhancing anisotropic light reflection remains challenging. In this study, a core-shell composite nanofiber, PVDF@PEI, is introduced and designed primarily from a symmetry-breaking perspective to develop highly efficient radiative cooling materials. Using a combination of solvent-induced phase separation (EIPS) inverse spinning and (aggregation) self-assembly methods (EISA or EIAA) and coaxial electrostatic spinning (ES), superconformal surface anisotropic porous nanofiber membranes are fabricated. These membranes exhibit exceptional thermal stability (up to 210 °C), high hydrophobicity (contact angle of 126°), robust UV protection (exceeding 99%), a fluorescence multiplication effect (with a 0.6% increase in fluorescence quantum efficiency), and good breathability. These properties enable the material to excel in a wide range of application scenarios. Moreover, this material achieved a remarkable daytime cooling temperature of 8 °C. The development of this fiber membrane offers significant advancements in the field of wearables and the multifunctionality of materials, paving new paths for future research and innovation.
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Affiliation(s)
- Hong Fan
- College of Energy, Soochow Institute for Energy and Materials Innovations (SIEMIS), Soochow Innovation Consortium for Intelligent Fibers and Wearable Technologies, Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, 688 Moye Road, Suzhou, 215006, P. R. China
| | - Kefan Wang
- College of Energy, Soochow Institute for Energy and Materials Innovations (SIEMIS), Soochow Innovation Consortium for Intelligent Fibers and Wearable Technologies, Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, 688 Moye Road, Suzhou, 215006, P. R. China
| | - Yangjian Ding
- College of Energy, Soochow Institute for Energy and Materials Innovations (SIEMIS), Soochow Innovation Consortium for Intelligent Fibers and Wearable Technologies, Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, 688 Moye Road, Suzhou, 215006, P. R. China
| | - Yueyue Qiang
- College of Energy, Soochow Institute for Energy and Materials Innovations (SIEMIS), Soochow Innovation Consortium for Intelligent Fibers and Wearable Technologies, Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, 688 Moye Road, Suzhou, 215006, P. R. China
| | - Zhuo Yang
- College of Energy, Soochow Institute for Energy and Materials Innovations (SIEMIS), Soochow Innovation Consortium for Intelligent Fibers and Wearable Technologies, Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, 688 Moye Road, Suzhou, 215006, P. R. China
| | - Huan Xu
- College of Energy, Soochow Institute for Energy and Materials Innovations (SIEMIS), Soochow Innovation Consortium for Intelligent Fibers and Wearable Technologies, Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, 688 Moye Road, Suzhou, 215006, P. R. China
| | - Min Li
- College of Energy, Soochow Institute for Energy and Materials Innovations (SIEMIS), Soochow Innovation Consortium for Intelligent Fibers and Wearable Technologies, Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, 688 Moye Road, Suzhou, 215006, P. R. China
| | - Zewen Xu
- College of Energy, Soochow Institute for Energy and Materials Innovations (SIEMIS), Soochow Innovation Consortium for Intelligent Fibers and Wearable Technologies, Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, 688 Moye Road, Suzhou, 215006, P. R. China
| | - Cheng Huang
- College of Energy, Soochow Institute for Energy and Materials Innovations (SIEMIS), Soochow Innovation Consortium for Intelligent Fibers and Wearable Technologies, Key Laboratory of Advanced Carbon Materials and Wearable Energy Technologies of Jiangsu Province, Soochow University, 688 Moye Road, Suzhou, 215006, P. R. China
- School of Optical and Electronic Information & Jiangsu/Suzhou Key Laboratory of Biophotonics & International Joint Metacenter for Advanced Photonics and Electronics, Suzhou City University, No.1188, Wuzhong District, Suzhou, 215006, China
- School of Flexible Electronics & State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, 66 Gongchang Road, Guangming District, Shenzhen, 518107, China
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Conrads L, Schüler L, Wirth KG, Wuttig M, Taubner T. Direct programming of confined surface phonon polariton resonators with the plasmonic phase-change material In 3SbTe 2. Nat Commun 2024; 15:3472. [PMID: 38658601 PMCID: PMC11043413 DOI: 10.1038/s41467-024-47841-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 04/12/2024] [Indexed: 04/26/2024] Open
Abstract
Tailoring light-matter interaction is essential to realize nanophotonic components. It can be achieved with surface phonon polaritons (SPhPs), an excitation of photons coupled with phonons of polar crystals, which also occur in 2d materials such as hexagonal boron nitride or anisotropic crystals. Ultra-confined resonances are observed by restricting the SPhPs to cavities. Phase-change materials (PCMs) enable non-volatile programming of these cavities based on a change in the refractive index. Recently, the plasmonic PCM In3SbTe2 (IST) was introduced which can be reversibly switched from an amorphous dielectric state to a crystalline metallic one in the entire infrared to realize numerous nanoantenna geometries. However, reconfiguring SPhP resonators to modify the confined polaritons modes remains elusive. Here, we demonstrate direct programming of confined SPhP resonators by phase-switching IST on top of a polar silicon carbide crystal and investigate the strongly confined resonance modes with scanning near-field optical microscopy. Reconfiguring the size of the resonators themselves result in enhanced mode confinements up to a value of λ / 35 . Finally, unconventional cavity shapes with complex field patterns are explored as well. This study is a first step towards rapid prototyping of reconfigurable SPhP resonators that can be easily transferred to hyperbolic and anisotropic 2d materials.
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Affiliation(s)
- Lukas Conrads
- Institute of Physics (IA), RWTH Aachen University, D-52056, Aachen, Germany.
| | - Luis Schüler
- Institute of Physics (IA), RWTH Aachen University, D-52056, Aachen, Germany
| | - Konstantin G Wirth
- Institute of Physics (IA), RWTH Aachen University, D-52056, Aachen, Germany
| | - Matthias Wuttig
- Institute of Physics (IA), RWTH Aachen University, D-52056, Aachen, Germany
| | - Thomas Taubner
- Institute of Physics (IA), RWTH Aachen University, D-52056, Aachen, Germany.
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Yan Q, Lu D, Chen Q, Luo X, Xu M, Zhang Z, Yang X, Zhang X, Li P. Hybrid Ghost Phonon Polaritons in Thin-Film Heterostructure. NANO LETTERS 2024; 24:4346-4353. [PMID: 38587212 DOI: 10.1021/acs.nanolett.3c04550] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/09/2024]
Abstract
Ghost phonon polaritons (g-PhPs), a unique class of phonon polaritons in the infrared, feature ultralong diffractionless propagation (>20 μm) across the surface and tilted wavefronts in the bulk. Here, we study hybrid g-PhPs in a heterostructure of calcite and an ultrathin film of the phase change material (PCM) In3SbTe2, where the optical field is bound in the PCM film with enhanced confinement compared with conventional g-PhPs. Near-field optical images for hybrid g-PhPs reveal a lemniscate pattern in the momentum distribution. We fabricated In3SbTe2 gratings and investigated how different orientations and periodicities of gratings impact the propagation of hybrid g-PhPs. As the grating period decreases to zero, the wavefront of hybrid g-PhPs can be dynamically steered by varying the grating orientation. Our results highlight the promise of hybrid g-PhPs with tunable functionalities for nanophotonic studies.
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Affiliation(s)
- Qizhi Yan
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
- Optics Valley Laboratory, Hubei 430074, China
| | - Dunzhu Lu
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
- Optics Valley Laboratory, Hubei 430074, China
| | - Qiyu Chen
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
- Optics Valley Laboratory, Hubei 430074, China
| | - Xiao Luo
- School of Integrated Circuits, Huazhong University of Science and Technology, Wuhan 430074 China
| | - Ming Xu
- School of Integrated Circuits, Huazhong University of Science and Technology, Wuhan 430074 China
| | - Zhaowei Zhang
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
- Optics Valley Laboratory, Hubei 430074, China
| | - Xiaosheng Yang
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
- Optics Valley Laboratory, Hubei 430074, China
| | - Xinliang Zhang
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
- Optics Valley Laboratory, Hubei 430074, China
- Xidian University, Xi'an 710126, China
| | - Peining Li
- Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China
- Optics Valley Laboratory, Hubei 430074, China
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Chen Q, Lu D, Qin T, Luo X, Xu M, Li P. Optical nanoimaging of laser-switched phase-change plasmonic infrared antennas. OPTICS LETTERS 2024; 49:1021-1024. [PMID: 38359232 DOI: 10.1364/ol.517176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Accepted: 01/22/2024] [Indexed: 02/17/2024]
Abstract
We investigate the plasmonic properties of laser-printed chalcogenide phase-change material In3SeTb2 (IST) antennas through near-field nanoimaging. Antennas of varying lengths were fabricated by laser switching an amorphous IST film into its crystalline metallic state. Near-field imaging elucidates the pronounced field confinement and enhancement at the antenna extremities along with the emergence of different ordered plasmonic modes with increasing length. Compared to gold antennas, the PCM antennas exhibit slightly lower but still substantial near-field enhancement with greater compactness. The interplay between antenna length, illumination angle, and excitation frequency enables versatile control over the resonant near-field distribution. Our work provides deeper understanding and tunable functionalities of laser-printed PCM nanoantennas for potential applications in compact, dynamically reconfigurable nanophotonic devices.
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Conrads L, Heßler A, Völkel L, Wilden K, Strauch A, Pries J, Wuttig M, Taubner T. Infrared Resonance Tuning of Nanoslit Antennas with Phase-Change Materials. ACS NANO 2023; 17:25721-25730. [PMID: 38085927 DOI: 10.1021/acsnano.3c11121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2023]
Abstract
Phase-change materials (PCMs) have been established as prime candidates for nonvolatile resonance tuning of nanophotonic components based on a large optical contrast between their amorphous and crystalline states. Recently, the plasmonic PCM In3SbTe2 was introduced, which can be switched from an amorphous dielectric state to a crystalline metallic one over the entire infrared spectral range. While locally switching the PCM around metallic nanorod antennas has already been demonstrated, similar tuning of inverse antenna structures (nanoslits) has not yet been investigated. Here, we demonstrate optical resonance tuning of nanoslit antennas with dielectric and plasmonic PCMs. We compare two geometries with fundamentally different resonance tuning mechanisms: tuning the resonance of aluminum slit antennas by change of the refractive index (dielectric PCM Ge3Sb2Te6), and creating slit-like volumes of amorphous In3SbTe2 and modifying the slit geometry directly (plasmonic PCM In3SbTe2). While the tuning range with the plasmonic PCM is about 3.4 μm and only limited by fabrication, the resonances with the dielectric PCM feature a three times larger quality factor compared to resonances obtained with the plasmonic PCM.
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Affiliation(s)
- Lukas Conrads
- Institute of Physics (IA), RWTH Aachen University, Aachen D-52056, Germany
| | - Andreas Heßler
- Institute of Physics (IA), RWTH Aachen University, Aachen D-52056, Germany
| | - Lukas Völkel
- Institute of Physics (IA), RWTH Aachen University, Aachen D-52056, Germany
| | - Kilian Wilden
- Institute of Physics (IA), RWTH Aachen University, Aachen D-52056, Germany
| | - Achim Strauch
- Institute of Physics (IA), RWTH Aachen University, Aachen D-52056, Germany
| | - Julian Pries
- Institute of Physics (IA), RWTH Aachen University, Aachen D-52056, Germany
| | - Matthias Wuttig
- Institute of Physics (IA), RWTH Aachen University, Aachen D-52056, Germany
| | - Thomas Taubner
- Institute of Physics (IA), RWTH Aachen University, Aachen D-52056, Germany
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