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Ozaki Y, Morisawa Y, Tanabe I. ATR-far-ultraviolet spectroscopy: a challenge to new σ chemistry. Chem Soc Rev 2024; 53:1730-1768. [PMID: 38287893 DOI: 10.1039/d3cs00437f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2024]
Abstract
This review reports the recent progress on ATR-far ultraviolet (FUV) spectroscopy in the condensed phase. ATR-FUV spectroscopy for liquids and solids enables one to explore various topics in physical chemistry, analytical chemistry, nanoscience and technology, materials science, electrochemistry, and organic chemistry. In this review, we put particular emphasis on the three major topics: (1) studies on electronic transitions and structures of various molecules, which one cannot investigate via ordinary UV spectroscopy. The combined use of ATR-FUV spectroscopy and quantum chemical calculations allows for the investigation of various electronic transitions, including σ, n-Rydberg transitions. ATR-FUV spectroscopy may open a new avenue for σ-chemistry. (2) ATR-FUV spectroscopy enables one to measure the first electronic transition of water at approximately 160 nm without peak saturation. Using this band, one can study the electronic structure of water, aqueous solutions, and adsorbed water. (3) ATR-FUV spectroscopy has its own advantages of the ATR method as a surface analysis method. ATR-FUV spectroscopy is a powerful technique for exploring a variety of top surface phenomena (∼50 nm) in adsorbed water, polymers, graphene, organic materials, ionic liquids, and so on. This review briefly describes the principles, characteristics, and instrumentation of ATR-FUV spectroscopy. Next, a detailed description about quantum chemical calculation methods for FUV and UV regions is given. The recent application of ATR-FUV-UV spectroscopy studies on electronic transitions from σ orbitals in various saturated molecules is introduced first, followed by a discussion on the applications of ATR-FUV spectroscopy to studies on water, aqueous solutions, and adsorbed water. Applications of ATR-FUV spectroscopy in the analysis of other materials such as polymers, ionic liquids, inorganic semiconductors, graphene, and carbon nanocomposites are elucidated. In addition, ATR-FUV-UV-vis spectroscopy focusing on electrochemical interfaces is outlined. Finally, FUV-UV-surface plasmon resonance studies are discussed.
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Affiliation(s)
- Yukihiro Ozaki
- School of Biological and Environmental Sciences, Kwansei Gakuin University, Sanda, Hyogo 669-1330, Japan.
- Toyota Physical and Chemical Research Institute, Nagakute, Aichi 480-1192, Japan
| | - Yusuke Morisawa
- School of Science and Engineering, Kindai University, Higashi-Osaka, Osaka 577-8502, Japan.
| | - Ichiro Tanabe
- Department of Chemistry, School of Science, Rikkyo University, Toshima, Tokyo 171-8501, Japan.
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Ozaki Y, Morisawa Y, Tanabe I, Beć KB. ATR-far-ultraviolet spectroscopy in the condensed phase-The present status and future perspectives. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 253:119549. [PMID: 33621936 DOI: 10.1016/j.saa.2021.119549] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Revised: 01/02/2021] [Accepted: 01/25/2021] [Indexed: 06/12/2023]
Abstract
Far-ultraviolet (FUV) spectroscopy in the region of 140-200 nm of condensed-phase has received keen interest as a new electronic spectroscopy. The introduction of the attenuated total reflection (ATR) technique to the FUV region has opened a new avenue for FUV spectroscopy of liquids and solids. ATR-FUV spectroscopy enables the study of electronic structures and transitions of most types of molecules. It also holds great promise for a variety of applications, i.e., from the application to basic sciences to practical applications. In this review, the characteristics and advantages of ATR-FUV spectroscopy in the condensed phase are described first; then, a brief historical overview is provided. Next, the ATR-FUV spectroscopy instrumentation is outlined. After these introductory parts, a variety of AFT-FUV spectroscopy applications are introduced, starting from applications to investigations of electronic structure and transitions of alkanes, graphenes, and polymers. Then, time-resolved ATR-FUV spectroscopy is discussed. The applications to materials research, such as the research on inorganic semiconductors and ionic liquids, follow. In the last part, the FUV spectroscopy perspective is emphasized.
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Affiliation(s)
- Yukihiro Ozaki
- School of Science and Technology, Kwansei Gakuin University, Sanda, Hyogo 669-1337, Japan.
| | - Yusuke Morisawa
- School of Science and Engineering, Kindai University, Higashi-Osaka, Osaka 577-8502, Japan
| | - Ichiro Tanabe
- Graduate School of Engineering Science, Osaka University, 1-3, Machikaneyama, Toyota, Osaka, 560-8531, Japan
| | - Krzysztof B Beć
- Institute of Analytical Chemistry and Radiochemistry, University of Innsbruck, Innrain 80/82, 6020 Innsbruck, Austria
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Moreira C, Wang Y, Blair S, Chadwick E, Lee JY, Oliveira L, Lima A, Cruz R. Approaches for deep-ultraviolet surface plasmon resonance sensors. OPTICS LETTERS 2020; 45:4642-4645. [PMID: 32797030 DOI: 10.1364/ol.397641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Accepted: 07/12/2020] [Indexed: 06/11/2023]
Abstract
Aluminum (Al) is a preferred metal for designing deep-ultraviolet (DUV) surface plasmon resonance (SPR)-based sensors. The native oxide layer (alumina), which grows when the Al film is exposed to air, adds an extra layer to the multilayer stack and consequently affects the DUV-SPR sensing performance. To mitigate the performance loss in DUV-SPR-based sensing, new, to the best of our knowledge, approaches are considered here. We first consider chromium, indium (In), nickel, and platinum as alternative plasmonic materials to Al. In-film-based DUV-SPR sensors exhibit the best performance parameters compared to these alternative materials. We next consider the approach of replacing the native oxide layer by an ultrathin gold (Au) layer on top of bare Al or In. With an optimal Au thickness, higher sensitivity as compared to oxidized metals is observed. The next approach adds one or more graphene layers on top of the bare metal film. In this case, the performance depends on the number of graphene layers, but improvement in sensor characteristics in the DUV is also obtained. The use of Au or graphene overlayers increases the refractive index sensing dynamic range, which can be significant for In with these overlayers under certain operating conditions.
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Lambert AS, Valiulis SN, Malinick AS, Tanabe I, Cheng Q. Plasmonic Biosensing with Aluminum Thin Films under the Kretschmann Configuration. Anal Chem 2020; 92:8654-8659. [PMID: 32525300 DOI: 10.1021/acs.analchem.0c01631] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Aluminum has recently attracted considerable interest as a plasmonic material due to its unique optical properties, but most work has been limited to nanostructures. We report here SPR biosensing with aluminum thin-films using the standard Kretschmann configuration that has previously been dominated by gold films. Electron-beam physical vapor deposition (EBPVD)-prepared Al films oxidize in air to form a nanofilm of Al2O3, yielding robust stability for sensing applications in buffered solutions. FDTD simulations revealed a sharp plasmonic dip in the visible range that enables measurement of both angular shift and reflection intensity change at a fixed angle. Bulk and surface tests indicated that Al films exhibited superb sensitivity performance in both categories. Compared to Au, the Al/Al2O3 layer showed a marked effect of suppressing nonspecific binding from proteins in human serum. Further characterization indicated that Al film demonstrated a higher sensitivity and a wider working range than Au films when used for SPR imaging analysis. Combined with its economic and manufacturing benefits, the Al thin-film has the potential to become a highly advantageous plasmonic substrate to meet a wide range of biosensing needs in SPR configurations.
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Affiliation(s)
- Alexander S Lambert
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Santino N Valiulis
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Alexander S Malinick
- Department of Chemistry, University of California, Riverside, California 92521, United States
| | - Ichiro Tanabe
- Graduate School of Engineering Science, Osaka University, Osaka 560-8531, Japan
| | - Quan Cheng
- Department of Chemistry, University of California, Riverside, California 92521, United States
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Tanabe I, Tanaka YY, Watari K, Inami W, Kawata Y, Ozaki Y. Enhanced Surface Plasmon Resonance Wavelength Shifts by Molecular Electronic Absorption in Far- and Deep-Ultraviolet Regions. Sci Rep 2020; 10:9938. [PMID: 32555405 PMCID: PMC7303190 DOI: 10.1038/s41598-020-66949-z] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Accepted: 05/05/2020] [Indexed: 11/09/2022] Open
Abstract
In this study, surface plasmon resonance (SPR) wavelength shifts due to molecular electronic absorptions in the far-ultraviolet (FUV, < 200 nm) and deep-ultraviolet (DUV, < 300 nm) regions were investigated by attenuated total reflectance (ATR) spectroscopy. Due to the strong absorption in the DUV region, N,N-dimethylformamide (DMF) significantly increased the SPR wavelength shift of Al film. On the other hand, no such shift enhancement was observed in the visible region for Au film because DMF does not have absorbance compared to non-absorbing materials such as water and alcohols. The enhanced SPR wavelength shift, caused by the overlap between SPR and molecular resonance wavelengths in FUV-DUV region, is expected to result in high sensitivity for resonant materials.
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Affiliation(s)
- Ichiro Tanabe
- Graduate School of Engineering Science, Osaka University, Machikaneyama 1-3, Toyonaka, Osaka, 6508531, Japan.
| | - Yoshito Y Tanaka
- Institute of Industrial Science, the University of Tokyo, 4-6-1 Komaba, Meguro, Tokyo, 1538505, Japan.
| | - Koji Watari
- School of Science and Technology, Kwansei Gakuin University, Gakuen 2-1, Sanda, Hyogo, 6691337, Japan
| | - Wataru Inami
- Research Institute of Electronics, Shizuoka University, 3-5-1 Johoku, Hamamatsu, Shizuoka, 4328561, Japan
| | - Yoshimasa Kawata
- Research Institute of Electronics, Shizuoka University, 3-5-1 Johoku, Hamamatsu, Shizuoka, 4328561, Japan
| | - Yukihiro Ozaki
- School of Science and Technology, Kwansei Gakuin University, Gakuen 2-1, Sanda, Hyogo, 6691337, Japan
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Tanabe I, Tanaka YY. Far‐ and Deep‐Ultraviolet Surface Plasmon Resonance Sensor. CHEM REC 2018; 19:1210-1219. [DOI: 10.1002/tcr.201800078] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Accepted: 08/17/2018] [Indexed: 01/31/2023]
Affiliation(s)
- Ichiro Tanabe
- Graduate School of Engineering ScienceOsaka University 1-3 Machikaneyama, Toyonaka Osaka 5608531 Japan
| | - Yoshito Y. Tanaka
- Institute of Industrial ScienceThe University of Tokyo 4-6-1 Komaba, Meguro Tokyo 1538505 Japan
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