Megumi Akai-Kasaya

赤井 恵 Megumi Akai-Kasaya 理学博士 Ph.D of Science

Contact Information

Expert Field

• Surface science, Nanotechnology, Charge transport in organic materials, Development of bio-inspired device

Biography

• Megumi Akai-Kasaya obtained her Ph.D. in physical chemistry from Osaka University in 1997 on the topic of STM imaging mechanisms of organic molecules combined with computational simulations. She is currently an Assistant Professor of Division of Precision Science & Technology at Graduate School of Engineering Osaka University. From 2005 to 2009 she joined the PRESTO program of “Structure Control and Function” at Japan Science and Technology agency. Her scientific interests include self-assembly in non-equilibrium/dynamic systems, carrier transport in nanostructured soft materials and development of new functional device utilizing their nanoscale physical properties.
　　

Research Topics

• Coulomb brockade charge transport in low dimensional organic materials
• Molecular Neuromorphic Learning Systems Consisting of Synaptic Devices on High-Conductive Polmer wire
• Single-walled carbon nanotube devices exhibiting collective stochastic resonance

Papers published in academic peer reviewed journals

"Detection of Light Emission from (S)?PTCDI Molecules Adsorbed on Au(111) and NiAl(110) Surfaces Induced by a Scanning Tunneling Microscope”"


P. Krukowski, T. Tsuzuki, Y. Minagawa, N. Yajima, S. Chaunchaiyakul, M. Akai-Kasaya, A. Saito, Y. Miyake, M. Katayama, and Y. Kuwahara*,


J. Phys. Chem. C, 120,, (2016) 3964-3977.



"Nanoscale analysis of multiwalled carbon nanotube by tip-enhanced Raman spectroscopy” "

S. Chaunchaiyakul, T. Yano, K. Khoklang, P. Krukowski, M. Akai-Kasaya, A. Saito, Y. Kuwahara*,


Carbon, 99, (2016) 642-648.



"Self-Assembly Formation of M-Type Enantiomer of 2,13-Bis(hydroxymethyl)[7]-thiaheterohelicene Molecules on Au(111) Surface Investigated by STM/CITS” "

S. Chaunchaiyakul, P. Krukowski, T. Tsuzuki, Y. Minagawa, M. Akai-Kasaya, A. Saito, H. Osuga, and Y. Kuwahara*,


J. Phys. Chem. C, 119, (2015) 21434-21442.



"Coulomb-blockade transport in two-dimensional conductive polymer monolayer"


M. Akai-Kasaya*, Y. Okuaki, S. Nagano, T. Mitani and Y. Kuwahara,


Phys. Rev. Lett., 115, (2015) 196801-196806.



"Advantages of flattened electrode in bottom contact single-walled carbon nanotube "


A. Setiadi, M. Akai-Kasaya *, A. Saito, and Y. Kuwahara,


Appl. Phys. Lett., 105, (2014) 093506-093510.


"Isotropic charge transport in highly ordered regioregular poly (3-hexylthiophene) monolayer"


M. Akai-Kasaya*, Y. Okuaki, S. Nagano, A. Saito, M. Aono and Y. Kuwahara,


J. Phys. D: Appl. Phys. 46 (2013) 425303-425309.


"Controlled chain polymerisation and chemical soldering for singlemolecule electronics"


Y. Okawa, M. Akai-Kasaya, Y. Kuwahara, S. K. Mandal and M. Aono*


Nanoscale, 4, 10 (2012) 3013-3028.


"Verification of Thermal Effect produced by Irradiation for Scanning Tunneling Microscope combined with Brilliant Hard X-rays from Synchrotron Radiation"


A. Saito*, Y. Tanaka, Y. Kohmura, M. Akai-Kasaya, T. Ishikawa, Y. Kuwahara, and M. Aono,


Curr. Appl. Phys., 12 (2012) S52-S56.


"Charge-carrier injection into pentacene thin film formed on Si(111) probed by STM spectroscopy"


M. Akai-Kasaya *, N. Shimada, A. Saito and Y. Kuwahara


J. Nanosc. Nanotechnol., 11, 4 (2011) 2867-2872.


"Enhanced Red-Light Emission by Local Plasmon Coupling of Au Nanorods in an Organic Light-Emitting Diode"


T. Tanaka, Y. Totoki, A. Fujiki, N. Zettsu, Y. Miyake, M. Akai-Kasaya, A. Saito, T. Ogawa, and Y. Kuwahara*,


Appl. Phys. Exp., 4 (2011) 032105-032109.


"STM-induced light emission from thin films of perylene derivatives on the HOPG and Au substrates"


A. Fujiki, Y. Miyake, Y. Oshikane, M. Akai-Kasaya, A. Saito and Y. Kuwahara*,


Nanosc. Res. Lett., 6 (2011) 347.


"Electrical conduction of organic ultrathin films evaluated by an independently driven double-tip scanning tunneling microscope"


K. Takami, S. Tsuruta, Y. Miyake, M. Akai-Kasaya, A. Saito, M. Aono and Y. Kuwahara*,


J. Phys.: Condens. Matter, 23, 43 (2011) 434002-434008.


“Numerical analysis on the optical role of nano-randomness on the Morpho butterfly's scale”


A. Saito*, M. Yonezawa, J. Murase, S. Juodkazis, V. Mizeikis, M. Akai-Kasaya, and Y. Kuwahara,


J. Nanosc. Nanotechnol., 11, 4 (2011) 2785-2790.


"Formation and electrical transport properties of pentacene nanorod crystal"


M. Akai-Kasaya*, C. Ohmori, T. kawanishi, M.Nashiki, A. Saito, M. Aono and Y. Kuwahara,


Nanotechnology, 21 (2010) 365601-365609.


"Direct observation of X-ray induced Atomic Motion using STM combined with Synchrotron Radiation”


A. Saito*, T. Tanaka, Y. Takagi, H. Hosokawa, H. Notsu, G. Ohzeki, Y. Tanaka, Y. Kohmura, M. Akai-Kasaya, T. Ishikawa, Y. Kuwahara, S. Kikuta, and M. Aono,


J. Nanosc. Nanotechnol., 11, 4 (2010) 2873-2881.


"Enhanced fluorescence by surface plasmon coupling of Au nanoparticles in an organic electroluminescence diode"


A. Fujiki, T. Uemura, N. Zettsu, M. Akai-Kasaya, A. Saito and Y. Kuwahara*,


Appl. Phys. Lett., 96 (2010) 43307-43309.


ナノギャップ平坦電極と一次元分子細線

赤井恵*、


Electrochemistly, 77 (2009) 894-898.


誘電多層構造によるモルフォ蝶型発色膜の作製

齋藤 彰*、宮村友輔、石川陽子、村瀬淳一、赤井恵、桑原裕司,


J. Vac. Soc. Jpn., 52 , 4 (2009) 218-223.


導電性高分子を用いた分子ワイヤ素子の開発

赤井恵*、桑原裕司、


化学工業 60 (2009) 227-232.


"Nanoscale Elemental Identification by Synchrotron-Radiation-based Scanning Tunneling Microscopy”


A. Saito*, Y. Takagi, K. Takahashi, K. Hosokawa, M. Akai-Kasaya, H. Hiromasa, K. Tanaka, Y. Tanaka, S. Shin, T. Ishikawa, M. Aono and Y. Kuwahara


Surf. Interface Anal., 40 (2008) 1033-1036.


"High-mobility organic single crystal transistors with submicrometer channels”


T. Kawanishi, T. Fujiwara, M. Akai-Kasaya*, A. Saito, M. Aono, J. Takeya, and Y. Kuwahara,


Appl. Phys. Lett. 93, (2008) 023303-023305.


"Polymerization Direction Controlled Growth of Polydiacetylene on Artificial Silicon Oxide Templates”


M. Akai-Kasaya*, Y. Higuch, K. Yura, T. Yoshida, A. Saito, M. Aono and Y. Kuwahara


Surf. Interface Anal., 40 (2008) 1037-1041.


"Spatially resolved detection of plasmon-enhanced fluorescence using scanning tunneling microscopy”


T. Uemura, M. Akai-Kasaya, A. Saito, M. Aono and Y. Kuwahara*


Surf. Interface Anal., 40 (2008) 1050-1053.


ナノインプリントリソグラフィーによるモルフォ・ブルー量産技術の開発

齋藤 彰*、石川陽子、宮村友輔、中島匡司、十河健司、赤井恵、桑原裕司、平井義彦:


表面科学 8 (2007) 414-409.


"Local-plasmon- enhanced up-conversion fluorescence from copper phthalocyanine”


T.Uemura, M.Furumoto, T.Nakano, M. Akai-Kasaya, A.Saito, M.Aono, Y.Kuwahara*,


Chem. Phys. Lett., 448 (2007) 232-236.


"Study for noise reduction in synchrotron radiation based scanning tunneling microscopy by developing insulator-coat tip”


A.Saito*, K.Takahashi, Y.Takagi, K.Nakamatsu, K.Hanai, Y.Tanaka, D.Miwa, M. Akai-Kasaya, S.Shin, S. Matsui, T.Ishikawa, Y.Kuwahara, M.Aono,


Surf. Sci. 601 (2007) 5294-5299.


"Application of Simple Mechanical Polishing to Fabrication of Nanogap Flat Electrode"


Y. Higuchi, N. Ogami, M. Akai-Kasaya *, A. Saito, M. Aono and Y. Kuwahara,


Jpn. J. Appl. Phys. 45 (2006) L145 - L147.


"Scanning Tunneling Microscope Combined with Hard X-ray Micro-Beam of High Brilliance from Synchrotron Radiation Source”


A. Saito*, J. Maruyama, K. Manabe, K. Kitamoto, K. Takahashi, Y. Takagi, S. Hirotsune, Y. Tanaka, D. Miwa, M. Yabashi, M. Ishii, M. Akai-Kasaya, S. Shin, T. Ishikawa, Y. Kuwahara and M. Aono, Jpn. J. Appl. Phys. 45 (2006) 1913-1916.


"Tunneling-current-induced Light Emission from Individual Carbon Nanotubes"


T. Uemura, S. Yamaguchi, M. Akai-Kasaya, A. Saito, M. Aono and Y. Kuwahara*


Surf. Sci. 600 (2006) L15-L19.


"Development of Scanning Tunneling Microsope for In-situ Experiments with Synchrotron Radiation Hard-X-ray Microbeam”


A. Saito*, J. Maruyama, K.Manabe, K.Takahashi, K. Takami, M. Akai-Kasaya, Y. Kuwahara, K.Kitamoto, Y. Takagi, M. Yabashi, Y. Tanaka, D. Miwa, M. Ishii, S.Shin and T. Ishikawa


J. Synchrotron Rad. 13 (2006) 216-220.


"Quantum Point Contact Switches Using Silver Particles"


M. Akai-Kasaya*, K. Nishihara, A. Saito, M. Aono and Y. Kuwahara


Appl. Phys. Lett. 88 (2006) 23107-23109.


"Polaron Injection into a One-dimensional Polydiacetylene Nanowire"


M. Akai-Kasaya*, Y. Yamamoto, A.Saito, M. Aono and Y. Kuwahara


Jpn. J. Appl. Phys. 45 (2006) 2049-2052. 　


"Control of Conduction of Iodine-Doped Poly(3-octylthiophene) Thin Films by Double-Tip Scanning Tunneling Microscopy"


K. Takami, M. Akai-Kasaya, A. Saito, M. Aono and Y. Kuwahara*


Chem. Phys. Lett. 419 (2006) 250-253.


"Tunneling-Current-Induced Light Emission from Copper Phthalocyanine Thin Films"


T. Uemura, M. Furumoto, T. Nakano, M. Akai-Kasaya, M. Aono, A. Saito and Y. Kuwahara*


Surf. Sci. Nanotech. 4 (2006) 559-562.


“Significant increase in conductivity of polydiacetylene thin film induced by iodine doping”


K. Takami, Y. Kuwahara*, T. Ishii, M. Akai-Kasaya, A. Saito and M. Aono


Suf. Sci., 591 (2005) L273-L279.　


"Construction of Independently Driven Double-Tip Scanning Tunneling Microscope"


K. Takami, M. Akai-Kasaya, A. Saito, M. Aono, Y. Kuwahara*


Jpn. J. Appl. Phys. 44 (2005) L120 - L122.


“Structural study of initial growth of nickel on yttria-stabilized zirconia by coaxial impact-collision ion scattering spectroscopy”


A. Saito*, K. Yamasaki, K. Takami, S. Ohnisi, M. Akai-Kasaya, M. Aono and Y. Kuwahara


Jpn. J. Appl. Phys., 44 (2005) 2630-2633.


"Structure of atomically smoothed LiNbO3(0001) surface"


A. Saito*, H. Matsumoto, S. Ohnisi, M. Akai-Kasaya, Y. Kuwahara, and M. Aono


Jpn. J. Appl. Phys. 43 (2004) 2057-2060.





"Conductivity measurement of polydiacetylene thin films by double-tip scanning tunneling microscopy",


K. Takami, J. Mizuno, M. Akai-Kasaya, A. Saito, M. Aono, and Y. Kuwahara*


J. Phys. Chem. B. 108 (2004) 16353-16356.　


"Electronic Structure of a Polydiacetylene Nanowire Fabricated on Highly Ordered Pyrolytic Graphite"


M. Akai-Kasaya*, K. Shimizu, Y.Watanabe, A. Saito, M. Aono and Y. Kuwahara


Phys. Rev. Lett. 91 (2003) 255501-255505.


"Scanning tunneling microscopy observation of binary monolayers of 10,12-ticosadiynoic acid and stearic acid deposited by horizontal lifting method"


G. Zhang, Y. Kuwahara*, J. Wu, M. Akai-Kasaya, A. Saito, and M. Aono


Surf. Sci. 476 (2001) L254-L260.


"Scanning Tunneling Microscopy Observation of Langmuir-Blodgett Diacetylenc Compound Films Deposited by Schaefer Method"


G. Zhang, Y. Kuwahara*, J. Wu, M. Akai-Kasaya, A. Saito, M. Aono


Jpn. J. Appl. Phys. 41 (2002) 2187-2188.


低温固相界面反応法による鉄シリサイド薄膜成長と光子分光法によるその評価

岩見基弘*, 笠谷恵, 藤井達也, 平井正明, 日下征彦, 本田裕康,　渡部宏邦


材料科学 37 (2000) 21-25.


"Scanning tunneling microscopy and molecular orbital calculation of organic molecules adsorbed on the Si(100)2x1 surface"


M. Kasaya, T. Tabata and T. Kawai*


Surf. Sci., 406 (1998) 302-311.


"Scanning tunneling microscopy and molecular orbital calculation of pentacene adsorbed on the Si(100)2x1 surface"


M. Kasaya, T. Tabata and T. Kawai*


Surf. Sci., 400 (1998) 367-374.


"Scanning tunneling microscopy and molecular orbital calculation of thymine and adenine molecules adsorbed on the Si(100)2x1 surface"


M. Kasaya, T. Tabata and T. Kawai*


Surf. Sci., 357 (1996) 195-201.


"Adsorption Structure of Copper-Phthalocyanine Molecules on a Si(100)2x1 Surface Observed by Scanning Tunneling Microscopy"


Y. Maeda, M. Kasaya, T. Tabata and T. Kawai*


Jpn. J. Appl. Phys., 35 (1996) L405-407.


"Scanning tunneling microscopy observation and theoretical calculation ofthe adsorbed adenine on Si(100)2x1 surfaces"


M. Kasaya, T. Tabata and T. Kawai*


Surf. Sci., 342 (1995) 215-223.


"Valence Band Density of States of the Iron Silicides Studied by SoftX-ray Emission Spectroscopy"


M. Kasaya, M. Iwami*, H. Nakamura, H. Watabe


J. Phys. Soc. Jap., 63 (1994) 4097-4101.


"Study of iron silicide formation on Si(111) by soft X-ray emission spectroscopy"


M. Kasaya, S. Yamauchi, M. Iwami*, H. Watabe


Appl. Surf. Sci., 75 (1994) 110-114.





Invited talk

M. Akai-Kasaya, Y. Kuwahara and M. Aono


“Metal transition of one-dimensional polymer nanowire”


IWSDRM :International Workshop on Superconductivity in Diamond and Related Materials


8 July 2008, Tsukuba Japan.


赤井恵、齋藤彰、桑原裕司


「高分子ナノワイヤーへのキャリア注入による増幅現象」


第２９回表面科学学術講演会　


2009年10月27日　東京船堀　


赤井恵


「分子ナノシステムの物性探索と素子応用」


日本物理学会　2010年秋季大会　


2010年9月23日 大阪府立大


M. Akai-Kasaya, S. Nagano, A. Saito and Y. Kuwahara


"Nonlinear charge transport in two-dimensional polymer monolayer"


Asia NANO 2012 6th in the series of Asian Conference on Nanoscience & Nanotechnology


9 Sep. 2012, Crowne Plaza Lijiang Ancient Town Lijiang, Yunnan, China.


M. Akai-Kasaya, Y. Okuaki, S. Nagano, A. Saito and Y. Kuwahara


"Nonlinear transport in two-dimensional polymer monolayer"


Symposium on Surface and Nano Science 2012


11 Jan. 2012, Shizukuishi Prince Hotel, Shizukuishi, Iwate, Japan.


M. Akai-Kasaya, Y. Kuwahara, M.Aono


"on-equilibrium structural fluctuation of one-dimensional polydiacetylene nanowire


The Symposium on Surface and Nano Science 2013


17 Jan. 2013, Hotel Jurin, Yamagata, Japan.


M. Akai-Kasaya 


"Coulomb brocade transport emerged in two dimensional organic polymer layers"


3^rd International Conference on Nanotek & Expo


3 Dec. 2013 LasVegas USA.


M. Akai-Kasaya, S. Nagano, A. Saito, and Y. Kuwahara


"Charge transport in two dimensional organic layer behaving as quantum dot array


EMN Fall meeting Energy Materials Nanotechnology,


8 Dec. 2013 Orland FL USA.


M. Akai-Kasaya, A. Setiadi , T. Asai and Y. Kuwahara


" Single-walled carbon nanotube devices exhibiting collective stochastic resonance "


International Symposium on Nonlinear Theory and its Applications (NOLTA2014)


15 September 2014, KKL Luzern, Switzerland.


総説・解説

１.「超精密加工と表面科学」第四章「有機ナノデバイス」 赤井恵（分担執筆）監修：安武潔、大阪大学出版（2013） ２. 現代表面科学シリーズ「問題と解説で学ぶ表面科学」問題3.27 赤井恵（分担執筆）日本表面科学会編集、共立出版（2013） ３.「超分子サイエンス&テクノロジー」第三章 第二節第八項：「分子ワイア素子」 赤井恵（分担執筆）監修：国武豊喜、エヌ・ティー・エス出版（2009） ４.「走査型プローブ顕微鏡　STMからSPMへ」 4.4節 「分子/表面系のSTM結像メカニズム」 川合知二, 笠谷恵（分担執筆）西川治編著 丸善(1998) 5.「低次元ナノ構造の電気伝導性」 青野正和、中山知信、桑原裕司、赤井恵,　応用物理, 75（2006）285-295. ６.「独立駆動二探針STMシステムの構築」 高見和宏、赤井恵、齋藤彰、青野正和、桑原裕司、精密工学会誌 72 (2006) 862-866. ７.「一次元重合分子鎖の構築とその電子状態評価」 桑原裕司、赤井恵、大川祐司、青野正和, , 応用物理, 72 (2003) 1291-1295.   その他 1. 「ナノワイヤーの電気伝導」 青野正和、中山知信、長谷川剛、田中啓文、新ヶ谷義隆、大川裕司、桑原裕司、赤井恵、寺部一弥, 学術月報, 54 (2002) 989-991. 2. 「STM探針励起による分子ナノワイヤー配線- 1次元分子鎖の電子状態と分子励起反応-」  赤井, 恵、桑原, 裕司、青野, 正和、大阪大学低温センターだより、124（2003）1-7. 3. 「単一ポリジアセチレン分子鎖へのキャリア注入」 赤井恵、桑原裕司、青野正和、応用物理学会有機分子バイオエレクトロニクス分科会会誌M＆BE 17（2006）185-190　 4. 「モルフォ・ブルー再現基板の作製と、その最適化」 石川陽子，宮村友輔，赤井恵，桑原裕司，齋藤彰:第43回夏期シンポジウム特集号 粉体工学会誌　第45巻3号（2007） 5. 「モルフォ・ブルー再現基板の作製と、その最適化」 石川陽子，宮村友輔，赤井恵，桑原裕司，齋藤彰、粉体工学会誌 45 (2008) 180-186. 6. 「ナノギャップ平坦電極を用いた導電性高分子の電荷輸送特性評価」 赤井恵、大阪大学低温センターだより、149（2010）30-35.  7. 「生物に学ぶ特異な構造発色体の開発〜色素フリー・省材料・無退色・高効率・広視野角・単色の発色体〜」 齋藤彰、米澤賢、村瀬淳一、赤井恵、桑原裕司,光アライアンス, 22(7) (2011) 15-20. 8. 「フェムト秒レーザによるモルフォ蝶型発色体の大面積・高速作製” 齋藤彰、村瀬淳一、米澤賢、赤井恵、桑原裕司、渡辺弘之、二宮孝文、野口俊司, 光アライアンス, 22(4) (2011) 20-26