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Ahn J, Kim D, Park J, Yang Y, Kim MH, Choi HJ, Jeong W, Lee WS, Oh DY, Ha DH, Hong SH, Oh SJ. Extremely Stable Ag-Based Photonics, Plasmonic, Optical, and Electronic Materials and Devices Designed with Surface Chemistry Engineering for Anti-Tarnish. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308968. [PMID: 38477693 DOI: 10.1002/smll.202308968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 02/16/2024] [Indexed: 03/14/2024]
Abstract
Silver (Ag) metal-based structures are promising building blocks for next-generation photonics and electronics owing to their unique characteristics, such as high reflectivity, surface plasmonic resonance effects, high electrical conductivity, and tunable electron transport mechanisms. However, Ag structures exhibit poor sustainability in terms of device performance because harsh chemicals, particularly S2- ions present in the air, can damage their structures, lowering their optical and electrical properties. Here, the surface chemistry of Ag structures with (3-mercaptopropyl)trimethoxysilane (MPTS) ligands at room temperature and under ambient conditions is engineered to prevent deterioration of their optical and electrical properties owing to S2- exposure. Regardless of the dimensions of the Ag structures, the MPTS ligands can be applied to each dimension (0D, 1D, and 3D). Consequently, highly sustainable plasmonic effects (Δλ < 2 nm), Fabry-Perot cavity resonance structures (Δλ < 2 nm), reflectors (ΔRReflectance < 0.5%), flexible electrodes (ΔRelectrical < 0.1 Ω), and strain gauge sensors (ΔGF < 1), even in S2- exposing conditions is achieved. This strategy is believed to significantly contribute to environmental pollution reduction by decreasing the volume of electronic waste.
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Affiliation(s)
- Junhyuk Ahn
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Doa Kim
- Superintelligence Creative Research Laboratory, Electronics and Telecommunications Research Institute, Daejeon, 34129, Republic of Korea
| | - Junhyeok Park
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Yoonji Yang
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Mi-Hyun Kim
- Superintelligence Creative Research Laboratory, Electronics and Telecommunications Research Institute, Daejeon, 34129, Republic of Korea
| | - Hyung Jin Choi
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Wooseok Jeong
- School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Woo Seok Lee
- Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Dae Yang Oh
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
| | - Don-Hyung Ha
- School of Integrative Engineering, Chung-Ang University, Seoul, 06974, Republic of Korea
| | - Sung-Hoon Hong
- Superintelligence Creative Research Laboratory, Electronics and Telecommunications Research Institute, Daejeon, 34129, Republic of Korea
| | - Soong Ju Oh
- Department of Materials Science and Engineering, Korea University, Seoul, 02841, Republic of Korea
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Singh A, Hassen WM, St-Onge R, Dubowski JJ. Galvanic Displacement Reaction Enabled Specific and Sensitive Detection of Bacteria with a Digital Photocorrosion GaAs/AlGaAs Biosensor. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2023; 127:21768-21776. [PMID: 37969924 PMCID: PMC10641864 DOI: 10.1021/acs.jpcc.3c05200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 10/12/2023] [Accepted: 10/13/2023] [Indexed: 11/17/2023]
Abstract
The conjugation of ionic gold with bacterial antibodies makes it possible to induce a specific interaction between targeted bacteria and the surface of a GaAs/AlGaAs biochip. The process of immobilization is based on a galvanic displacement reaction (GDR) involving electron transfer between GaAs and Au3+ ions that leads to the formation of a Au-Ga alloy anchoring bacteria to the biochip surface. The GDR-based immobilization of Escherichia coli on biochips comprising a stack of GaAs/AlGaAs nanolayers (dGaAs = 12 nm, dAlGaAs = 10 nm) was confirmed by X-ray photoelectron spectroscopy and atomic force microscopy-based infrared experiments. We report the successful application of this approach for highly sensitive detection of E. coli with a digital photocorrosion (DIP) biosensor. The photoluminescence (PL) monitored DIP of GaAs/AlGaAs nanolayers results in the formation of a PL intensity maximum whose temporal appearance depends on the electric charge transfer between bacteria and the biochip. The formation of a robust bacteria-biochip interface achieved with the GDR process allowed us to observe the role of bacteria on the temporal position of a PL intensity maximum related to the etching of two pairs of GaAs/AlGaAs nanolayers extending up to 24 nm below the biochip surface. We demonstrate the attractive detection of E. coli at 250 CFU/mL, and we discuss the potential of this approach for designing a family of biosensors addressing the quasi-continuous monitoring of a water environment for the presence of pathogenic bacteria.
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Affiliation(s)
- Amanpreet Singh
- Laboratory for Quantum Semiconductors
and Photon-Based BioNanotechnology, Interdisciplinary Institute for
Technological Innovation (3IT), CNRS IRL-3463, Department of Electrical
and Computer Engineering, Université
de Sherbrooke, 3000 boul. de l’Université, Sherbrooke, Québec J1K 0A5, Canada
| | - Walid M. Hassen
- Laboratory for Quantum Semiconductors
and Photon-Based BioNanotechnology, Interdisciplinary Institute for
Technological Innovation (3IT), CNRS IRL-3463, Department of Electrical
and Computer Engineering, Université
de Sherbrooke, 3000 boul. de l’Université, Sherbrooke, Québec J1K 0A5, Canada
| | - René St-Onge
- Laboratory for Quantum Semiconductors
and Photon-Based BioNanotechnology, Interdisciplinary Institute for
Technological Innovation (3IT), CNRS IRL-3463, Department of Electrical
and Computer Engineering, Université
de Sherbrooke, 3000 boul. de l’Université, Sherbrooke, Québec J1K 0A5, Canada
| | - Jan J. Dubowski
- Laboratory for Quantum Semiconductors
and Photon-Based BioNanotechnology, Interdisciplinary Institute for
Technological Innovation (3IT), CNRS IRL-3463, Department of Electrical
and Computer Engineering, Université
de Sherbrooke, 3000 boul. de l’Université, Sherbrooke, Québec J1K 0A5, Canada
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Awiaz G, Lin J, Wu A. Recent advances of Au@Ag core-shell SERS-based biosensors. EXPLORATION (BEIJING, CHINA) 2023; 3:20220072. [PMID: 37323623 PMCID: PMC10190953 DOI: 10.1002/exp.20220072] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 05/18/2022] [Indexed: 06/17/2023]
Abstract
The methodological advancements in surface-enhanced Raman scattering (SERS) technique with nanoscale materials based on noble metals, Au, Ag, and their bimetallic alloy Au-Ag, has enabled the highly efficient sensing of chemical and biological molecules at very low concentration values. By employing the innovative various type of Au, Ag nanoparticles and especially, high efficiency Au@Ag alloy nanomaterials as substrate in SERS based biosensors have revolutionized the detection of biological components including; proteins, antigens antibodies complex, circulating tumor cells, DNA, and RNA (miRNA), etc. This review is about SERS-based Au/Ag bimetallic biosensors and their Raman enhanced activity by focusing on different factors related to them. The emphasis of this research is to describe the recent developments in this field and conceptual advancements behind them. Furthermore, in this article we apex the understanding of impact by variation in basic features like effects of size, shape varying lengths, thickness of core-shell and their influence of large-scale magnitude and morphology. Moreover, the detailed information about recent biological applications based on these core-shell noble metals, importantly detection of receptor binding domain (RBD) protein of COVID-19 is provided.
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Affiliation(s)
- Gul Awiaz
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Sciences (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical MaterialsNingbo Institute of Materials Technology and Engineering, CASNingboChina
- University of Chinese Academy of SciencesBeijingChina
| | - Jie Lin
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Sciences (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical MaterialsNingbo Institute of Materials Technology and Engineering, CASNingboChina
- Advanced Energy Science and Technology Guangdong LaboratoryHuizhouChina
| | - Aiguo Wu
- Cixi Institute of Biomedical Engineering, International Cooperation Base of Biomedical Materials Technology and Application, Chinese Academy of Sciences (CAS) Key Laboratory of Magnetic Materials and Devices and Zhejiang Engineering Research Center for Biomedical MaterialsNingbo Institute of Materials Technology and Engineering, CASNingboChina
- Advanced Energy Science and Technology Guangdong LaboratoryHuizhouChina
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Zhao X, Wang M, Wang Y, Li J, He D, Zou Y, Zhang Y. Assembly of bimetallic (Au-Ag)FON composite films at liquid/solid interfaces and their tunable optical properties. Dalton Trans 2022; 51:8480-8490. [PMID: 35603965 DOI: 10.1039/d2dt00774f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The regular structure provided by two-dimensional (2D) structural colloidal crystals is widely accepted to provide an ideal template that ensures that plasmonic bimetallic composite nanostructures are uniform. Herein, we report an effective method for fabricating bimetallic Au-Ag composite films loaded on the surfaces of 2D polystyrene@polyacrylic acid (PS@PAA) colloidal crystals. PS@PAA particles coated with uniform Ag particle layers (AgFON) were produced by a simple and effective sputtering-deposition technique, after which the galvanic replacement (GR) reaction was used to produce a bimetallic (Au-Ag)FON composite film at the liquid/solid interface in aqueous HAuCl4. The morphology and relative contents of the bimetallic (Au-Ag)FON composite film can be regulated by changing the kinetic factors that control the GR reaction, including the concentration and pH of the HAuCl4 solution, and the reaction time. We demonstrated that the fabricated bimetallic (Au-Ag)FON composite has localized surface plasmon resonance (LSPR) properties that can be regulated by varying the composite structure and Ag/Au composition. On the one hand, the regular 2D colloidal crystal structure provides an ideal template for preparing Au-Ag composite films, which ensures that the optical signals of plasmonic Au-Ag composite films are reproducible. On the other hand, the synergy between Ag and Au in the bimetallic alloy composite film ensures stable and tunable LSPR performance. Furthermore, the prepared 2D ordered (Au-Ag)FON Au-Ag bimetallic material is expected to be used in sensing and catalysis applications.
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Affiliation(s)
- Xinyu Zhao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China.
| | - Mingzhen Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China.
| | - Yingxue Wang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China.
| | - Jinqi Li
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China.
| | - Dongqing He
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China.
| | - Yongjin Zou
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China.
| | - Ying Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China.
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5
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Hu X, Xu X, Fu F, Yang B, Zhang J, Zhang Y, Binte Touhid SS, Liu L, Dong Y, Liu X, Yao J. Synthesis of bimetallic silver-gold nanoparticle composites using a cellulose dope: Tunable nanostructure and its biological activity. Carbohydr Polym 2020; 248:116777. [PMID: 32919567 DOI: 10.1016/j.carbpol.2020.116777] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 07/11/2020] [Accepted: 07/13/2020] [Indexed: 12/14/2022]
Abstract
Introducing functional metal nanoparticles (NPs) into flexible substrate is being increasingly attempted to expand their application. Here, we extend the synthesis of cellulose to its unmodified dope achieving freestanding nanocomposite decorated with bimetallic Ag-Au NPs through the one pot reaction. In the procedure, cellulose chain not only acts as a reducing agent but also a biocompatible support for NPs with a mean size of 7.9-9.7 nm. Meanwhile, changing the addition order of Ag+ and AuCl4- generated different atom arrangement in the bimetallic NPs. Moreover, the correlation of bioactivity to NP atom arrangement was studied. The result revealed that the nanocomposite containing NPs with an ultrathin Ag-rich outermost shell around an Au-rich core showed better bactericidal ability while lower cytotoxicity. In addition, the nanocomposite exhibited a sensitive SERS property for determination of R6G with a high enhancement factor of 108.
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Affiliation(s)
- Xinman Hu
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Xinyi Xu
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Feiya Fu
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China.
| | - Binbin Yang
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Jingjing Zhang
- Translational Medicine Research Center, Key Laboratory of Clinical Cancer Pharmacology and Toxicology Research of Zhejiang Province, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou, 310006 China.
| | - Yanyan Zhang
- College of Textiles and Garments, Anhui Polytechnic University, Wuhu, 241000, China
| | - S Salvia Binte Touhid
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Lin Liu
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Yubing Dong
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Xiangdong Liu
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China.
| | - Juming Yao
- School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
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6
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Feng L, Huo P, Liang Y, Xu T. Photonic Metamaterial Absorbers: Morphology Engineering and Interdisciplinary Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1903787. [PMID: 31566259 DOI: 10.1002/adma.201903787] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 08/29/2019] [Indexed: 06/10/2023]
Abstract
Recent advances in nanofabrication technologies have spurred many breakthroughs in the field of photonic metamaterials that provide efficient ways of manipulating light-matter interaction at subwavelength scales. As one of the most important applications, photonic metamaterials can be used to implement novel optical absorbers. First the morphology engineering of various photonic metamaterial absorbers is discussed, which is highly associated with impendence matching conditions and resonance modes of the absorbers, thus directly determines their absorption efficiency, operational bandwidth, incident angle, and polarization dependence. Then, the recent achievements of various interdisciplinary applications based on photonic metamaterial absorbers, including structural color generation, ultrasensitive optical sensing, solar steam generation, and highly responsive photodetection, are reviewed. This report is expected to provide an overview and vision for the future development of photonic metamaterial absorbers and their applications in novel nanophotonic systems.
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Affiliation(s)
- Lei Feng
- National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Pengcheng Huo
- National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Yuzhang Liang
- National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
| | - Ting Xu
- National Laboratory of Solid-State Microstructures, College of Engineering and Applied Sciences and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China
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7
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Dirdal CA, Jensen GU, Angelskår H, Vaagen Thrane PC, Gjessing J, Ordnung DA. Towards high-throughput large-area metalens fabrication using UV-nanoimprint lithography and Bosch deep reactive ion etching. OPTICS EXPRESS 2020; 28:15542-15561. [PMID: 32403580 DOI: 10.1364/oe.393328] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 05/02/2020] [Indexed: 06/11/2023]
Abstract
We demonstrate the fabrication of diffraction-limited dielectric metasurface lenses for NIR by the use of standard industrial high-throughput silicon processing techniques: UV nano imprint lithography (UV-NIL) combined with continuous reactive ion etching (RIE) and pulsed Bosch deep reactive ion etching (DRIE). As the research field of metasurfaces moves towards applications, these techniques are relevant as potential replacements of commonly used cost-intensive fabrication methods utilizing electron beam ithography. We show that washboard-type sidewall surface roughness arising from the Bosch DRIE process can be compensated for in the design of the metasurface, without deteriorating lens quality. Particular attention is given to fabrication challenges that must be overcome towards high-throughput production of relevance to commercial applications. Lens efficiencies are measured to be 25.5% and 29.2% at wavelengths λ = 1.55μm and λ = 1.31μm, respectively. A number of routes towards process optimization are proposed in relation to encountered challenges.
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8
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Singh A, Bains D, Hassen WM, Singh N, Dubowski JJ. Formation of a Au/Au 9Ga 4 Alloy Nanoshell on a Bacterial Surface through Galvanic Displacement Reaction for High-Contrast Imaging. ACS APPLIED BIO MATERIALS 2020; 3:477-485. [DOI: 10.1021/acsabm.9b00932] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Amanpreet Singh
- Laboratory for Quantum Semiconductors and Photon-Based BioNanotechnology, Interdisciplinary Institute for Technological Innovation (3IT), CNRS UMI-3463, Department of Electrical and Computer Engineering, Université de Sherbrooke, 3000 boul. de l’Université, Sherbrooke, Québec J1K 0A5, Canada
| | - Deepak Bains
- Department of Chemistry, Indian Institute of Technology Ropar, Punjab 140001, India
| | - Walid M. Hassen
- Laboratory for Quantum Semiconductors and Photon-Based BioNanotechnology, Interdisciplinary Institute for Technological Innovation (3IT), CNRS UMI-3463, Department of Electrical and Computer Engineering, Université de Sherbrooke, 3000 boul. de l’Université, Sherbrooke, Québec J1K 0A5, Canada
| | - Narinder Singh
- Department of Chemistry, Indian Institute of Technology Ropar, Punjab 140001, India
| | - Jan J. Dubowski
- Laboratory for Quantum Semiconductors and Photon-Based BioNanotechnology, Interdisciplinary Institute for Technological Innovation (3IT), CNRS UMI-3463, Department of Electrical and Computer Engineering, Université de Sherbrooke, 3000 boul. de l’Université, Sherbrooke, Québec J1K 0A5, Canada
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9
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Kim SJ, Jung PH, Kim W, Lee H, Hong SH. Generation of highly integrated multiple vivid colours using a three-dimensional broadband perfect absorber. Sci Rep 2019; 9:14859. [PMID: 31619698 PMCID: PMC6795891 DOI: 10.1038/s41598-019-49906-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Accepted: 08/16/2019] [Indexed: 11/09/2022] Open
Abstract
The colour printing technology based on interactions between geometric structures and light has various advantages over the pigment-based colour technology in terms of nontoxicity and ultrasmall pixel size. The asymmetric Fabry-Perot (F-P) cavity absorber is the simplest light-interacting structure, which can easily represent and control the colour by the thickness of the dielectric layer. However, for practical applications, an advanced manufacturing technique for the simultaneous generation of multiple reflective colours is required. In this study, we demonstrate F-P cavity absorbers with micropixels by overcoming the difficulties of multi-level pattern fabrication using a nanoimprinting approach. Our asymmetric F-P cavity absorber exhibited a high absorption (approximately 99%) in a wide visible light range upon the incorporation of lossy metallic materials, yielding vivid colours. A high-resolution image of eight different reflective colours was obtained by a one-step process. This demonstrates the potential of this technology for device applications such as high-resolution colour displays and colour patterns used for security functions.
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Affiliation(s)
- Soo-Jung Kim
- Department of Materials Science and Engineering, Korea University, Anam-dong 5-1, Sungbuk-Ku, Seoul, 136-701, Republic of Korea
| | - Pil-Hoon Jung
- Department of Materials Science and Engineering, Korea University, Anam-dong 5-1, Sungbuk-Ku, Seoul, 136-701, Republic of Korea
| | - Wonjoong Kim
- Department of Materials Science and Engineering, Korea University, Anam-dong 5-1, Sungbuk-Ku, Seoul, 136-701, Republic of Korea
| | - Heon Lee
- Department of Materials Science and Engineering, Korea University, Anam-dong 5-1, Sungbuk-Ku, Seoul, 136-701, Republic of Korea.
| | - Sung-Hoon Hong
- ICT Materials and Components Research Laboratory, Electronic and Telecommunications Research Institute Gajeong-dong, Yuseong-gu, Daejeon, 305-700, Republic of Korea.
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Kim SJ, Choi HK, Lee H, Hong SH. Solution-Processable Nanocrystal-Based Broadband Fabry-Perot Absorber for Reflective Vivid Color Generation. ACS APPLIED MATERIALS & INTERFACES 2019; 11:7280-7287. [PMID: 30746932 DOI: 10.1021/acsami.8b19157] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Structural reflective colors based on Fabry-Perot (F-P) cavity resonances have attracted tremendous interest for diverse applications, such as color decoration and printing, display, and imaging devices. However, the asymmetric F-P cavity-based reflective colors proposed to date have low color purity and have difficulty to realize a desired vivid color because of a narrow absorption band characteristic in the visible light region. Here, a solution-processed, F-P ultra-broadband light absorber is newly proposed using a high lossy nanoporous material for vivid color generation. An asymmetric metal-insulator-metal structure consists of a high lossy nanoporous metallic film with coupled silver nanocrystals (Ag NCs) as the top layer. The absorbers not only increase the maximum absorption intensity up to ∼98% but also widen the bandwidth by 300 nm, resulting in high color purity in micrometer-scale pixels. Furthermore, the solution-based absorber shows potential to realize a high-resolution display pixel and anticounterfeiting devices having mechanical flexibility using the inkjet printing technology.
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Affiliation(s)
- Soo-Jung Kim
- Department of Materials Science and Engineering , Korea University , Anam-dong 5-1 , Sungbuk-gu, Seoul 136-701 , Republic of Korea
| | - Hyun-Kyung Choi
- ICT Materials & Components Research Laboratory , ETRI , 218 Gajeong-ro , Yuseong-gu, Daejeon 305-700 , Republic of Korea
| | - Heon Lee
- Department of Materials Science and Engineering , Korea University , Anam-dong 5-1 , Sungbuk-gu, Seoul 136-701 , Republic of Korea
| | - Sung-Hoon Hong
- ICT Materials & Components Research Laboratory , ETRI , 218 Gajeong-ro , Yuseong-gu, Daejeon 305-700 , Republic of Korea
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