It is a common knowledge in recent research that "surface and bulk are different". However, then what is the differencebetween a surface or interface and a bulk?
　 When defining a surface or interface, there is always an "orientation". In the case of a water  surface, the upper part is airand the lower part is bulk water, and the boundary between these  two media is defined with the "water surface" or the "air-water interface". The orientation of the  molecules at the interface affects a wide variety of physical properties andfunctions,  such as hydrophilicity/hydrophobicity, adhesion, biocompatibility, and friction, etc.

　Sum-frequency generation spectroscopy is a unique method to selectively observe the behavior of molecules at surfacesand interfaces by using the specific light generated at the interface  between different media when the target sample isirradiated with two short laser pulses of  different wavelengths.

　The goal of this laboratory is to use various spectroscopic techniques to elucidate the  relationship between molecules andvarious micro- and macroscopic phenomena occurring at  surfaces and  interfaces, such as hydrophilicity, water repellency,friction, biocompatibility,  adhesion, delamination, molecular adsorption, liquid interfaces, and charge accumulation/transport phenomena inside the cutting-edge of the organic devices.

If you are interested, please contact  Prof. Miyamae

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・Member page updated (2024/4/1) ⇒Members

・Interfacial Phenomena in Adhesion and Adhesive Bondingis published fromSpringer-Nature.Open Accessbook.(2023/10/30)Editors: S. Horiuchi, N. Terasaki, T. Miyamae
  Chapter 5, "Analysis of Molecular Surface/Interfacial Layer by Sum-Frequency Generation (SFG) Spectroscopy"

2023/9/12  Koki Tanoue presented in 17th Annual Meeting of Japan Society for Molecular Science 2023(Osaka Univ.,2023/9/12~15). ->photo

2023/9/12  Ryosuke Obuchi presented in 74th Divisional Meeting of Division of Colloid and Surface Chemistry(ShinsyuUniv.,  2023/9/12~15). ->photo

2023/9/11  Seito Yamazaki presented in EUROADH/WCARP(Germany,  2023/9/10~13). ->photo

2023/7/18  Seito Yamazaki presented in The 13th SPSJ International Polymer Conference (Sapporo). ->photo

2023/6/22  K. Morimoto presented in 36th Japan OLED forum．

2023/6/7　Our paper is publishes inOrganic Electronics.

"Operando measurements of top-emission organic light-emitting diode using electric-field-induced doubly resonant sum-frequencygeneration vibrational spectroscopy", K. Morimoto, T. Kaburagi, H. Ohata, S. Noh, and T. Miyamae, Organic Electronics, 120 (2023) 106862.DOI:10.1016/j.orgel.2023.106862

Our review paper is published atOleoscience.(written in Japanese).

　“Molecular Behavior at Liquid Interfaces Investigated by Sum-Frequency Generation Spectroscopy (written in Japanese”, T. Miyamae,Oleosciense, 23, 199-206 (2023).　

2023/4/3  Member page updated ⇒Members

2022/02/10  Koki Tanoue presentedAjou-Chiba University Joint sympojium(Chiba University)．->photo

2023/1/20　Our paper is published inApplied Physics Express.

"Electrostatic charges and their distribution on the charged surfaces probed by
sum-frequency generation spectroscopy",Y. Isaka and T. Miyamae, Appl. Phys. Express,2023,DOI:10.35848/1882-0786/acb1ec.

2022/12/5  Invited talk at theFuture Light Innovation Research Area Meeting(Saitama University)

2022/9/23  Congratulation! Yui Suzuki won the  Student Award of ALC'22

2022/9/22  Yui Suzuki perticipated 73th Colloid and Surface Chemistry Meeting @ Hiroshima Universitu. →Photo

2022/9/22  Kouki Tanoue perticipated 83rd JSAP fall Meeting@Tohoku University. →Photo

2022/9/19-22  T. Miyamae & our students attended to the16th Annual Meeting of Japan Society for Molecular Science. →Photo

	1D07	Origin of Surface Charging by Sum Frequency Spectroscopy and Non- contact Visualization	〇T. Miyamae and Y. Isaka
	1p046	interfacial structure of saponins by sum frequency generation spectroscopy	〇Y. Kagiyama and T. Miyamae
	2p041	Evaluation of Molecular Structure of Surface Alkyl Groups of LiquidRepellent Films by SFG	〇R. Mizuno, C. Urata, K. Watanabe, A. Hozumi, and T. Miyamae
	4p045	Analysis of OFET interface using SFG spectroscopy	〇T. Isobe and T. Miyamae

2022/9/9  Yuuka Isaka attend the Annual Meeting of IESJ.

2022/8/8  Online lecture at  Yumenabi Web page.

      What is "Yomenabi"？

2022/7/30  Invited talk at 40th Kansai Interface Science seminar (ZOOM On-line)

2022/7/20　Our paper is published at J. Raman Spectroscopy.

Joint Seminar was held by 4 laboratories in Kanto region. 11th May, 2022 @Chiba University

　In-hause meeting was held at Chiba University.
Ouchi lab (Tokyo Tech), Miyamae lab. (Chiba Univ.) Tsukuba Univ. (Ishibashi lab.) Saitama Univ. (Yamaguchi lab.)⇒　Program.pdf　

2022/3/17　Our paper is published at Solids.

"Evaluation of the Molecular Conformation of Surface Alkyl Chains of Alkylsilane-Derived Hybrid Films Using Sum-Frequency GenerationSpectroscopy",R. Mizuno, C. Urata, K. Watanabe, A. Hozumi, and T. Miyamae,  Solids,3, 147-154 (2022),DOI: 10.3390/solids3010010.

Lecture video is now available on theChemstation YouTube Channel(2022/02/09)

Our review paper is published at "Review of Laser Engineering" (written in Japanese).

　"Charge Carrier Behavior of the Organic Devices Using Operando Sum-Frequency Generation Spectroscopy"T. Miyamae,Review of Laser Engineering,50, 17-21 (2022).

Perticipated  The 9th International Symposium on Surface Science（Dec. 1, 2021 Online）

Talk at the  Q Colioquium（Nov. 29, 2021, Online)

Online meeting withKatsumata Groupat UMASS Amherst Polymer Science and Egineering Dept. (Sep. 16, 2021)

 Web site link: Katsumata Research Group at UMASS Amherst

Talk at the M&BE of JSAP (Sep. 9, 2021, Online)

 M&BE新分野開拓研究会2021「有機材料・デバイス中のダイナミクス を探る計測技術の最前線」

Our paper is published at Journal of the Society for Information Display．

"Operando sum‐frequency generation spectroscopy of high‐efficiency OLEDs for probing the charge carrierbehavior",T. Miyamae and T. Sato,J. Soc. Inf. Display, 2021, 1-12(2021),DOI: 10.1002/jsid.1076

Our review paper is published at "Bunseki" (written in Japanese).

　"Interface analysis by nonlinear spectroscopy" T. Miyamae,ぶんせき, 2021年8号, 363-371.　

New B4 students are joined with our group (Apr. 1, 2021) ⇒Members

Invited talk atKPS spring meeting(Apr. 21-23, 2021 Online)

Our review paper is published at "Keisoku-to-Seigyo" (written in Japanese).

"Operando Analysis of the Organic Devices by Sum-Frequency Generation Spectroscopy",T. Miyamae.

Our paper is published at ACS Applied Materials & Interfaces asCover article．

"Role of Chemical Functionality in the Adhesion of Aluminum and Isotactic Polypropylene",Y. Liu, Y. Shigemoto, T.Hanada, T. Miyamae, K. Kawasaki, and S. Horiuchi,ACS Appl Mater. Interfaces.,13, 11497-11506 (2021),DOI: 10.1021/acsami.0c22988

Our paper is published at PCCP

"Direct imaging of Electric field behavior in 2,7-Diphenyl[1]benzothieno[3,2-b][1]benzothiophene Organic Field-Effect transistors by Sum-Frequency Generation Imaging Microscopy", C．Katagiri, T. Miyamae,.H. Li, F. Yang, andS. Baldelli,Phys. Chem. Chem. Phys.,23, 4944-4950 (2021).DOI: 10.1039/D0CP06407F

Our paper is published at Organic Electronics

　"Relationship between the surface structure of the gate insulator and the performance of  organic thin-filmtransistors",C. Katagiri, K. Akaike, T. Miyamae,Org. Electronics, 2020,86, 105928.

New lab is started at Chiba University (Jul. 1, 2020)　→　Access