Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Songpol Chaunchaiyakul"'
Autor:
Yuji Kuwahara, Songpol Chaunchaiyakul, Pawel Krukowski, Akira Saito, Hideji Osuga, Megumi Akai-Kasaya
Publikováno v:
The Journal of Physical Chemistry C. 125:9419-9427
The coverage-dependent adsorption of a racemic mixture of [7]thiaheterohelicene-2,13-carboxaldehyde on Au(111), Cu(001), and NiAl(110) surfaces was investigated using a scanning tunneling microscop...
Autor:
Norihiko Hayazawa, Yuji Kuwahara, Francesca Celine Catalan, Agung Setiadi, Megumi Akai-Kasaya, Songpol Chaunchaiyakul, Hideji Osuga, Akira Saito, Pawel Krukowski, Yousoo Kim
Publikováno v:
The Journal of Physical Chemistry C. 121:18162-18168
This study shows evidence of nanoscale dehydrogenation occurring during tip-enhanced Raman spectroscopy (TERS) measurements. The near-field TERS spectra obtained locally on a self-assembled monolayer of 2,13-bis(aldehyde)[7]thiaheterohelicene molecul
Autor:
Yoshiaki Shoji, Emiko Kazuma, Songpol Chaunchaiyakul, Chi Zhang, Yousoo Kim, Fumitaka Ishiwari, Takanori Fukushima, Hiroshi Imada
Publikováno v:
The Journal of Physical Chemistry C. 123(Number 51)
Upright orientation of a molecular adsorbate is one of the most practical keys for controlling surface functionalities by using self-assembled monolayers. However, lateral interactions between the upright molecules become more complex than planar mol
Autor:
Megumi Akai-Kasaya, Yuji Kuwahara, Akira Saito, Kamonchanok Khoklang, Pawel Krukowski, Songpol Chaunchaiyakul, Takeshi Yano
Publikováno v:
Carbon. 99:642-648
The relationship between the 2D and G band intensities and the number of walls of a multiwalled carbon nanotube was investigated by tip-enhanced Raman spectroscopy, which enables spatial resolution of nanometer order. The 2D band to G band integrated
Autor:
Yusuke Miyake, Takuro Tsuzuki, Yuto Minagawa, Akira Saito, Yuji Kuwahara, Megumi Akai-Kasaya, Mitsuhiro Katayama, Pawel Krukowski, Nami Yajima, Songpol Chaunchaiyakul
Publikováno v:
The Journal of Physical Chemistry C. 120:3964-3977
We report the suppression and enhancement of light emission from (S)-PTCDI molecules (the S-type enantiomer of the chiral binaphthylene-perylenebiscarboxydiimide dimer) adsorbed on Au(111) and NiAl(110) surfaces, which were investigated by scanning t
Autor:
Yuto Minagawa, Yuji Kuwahara, Hideji Osuga, Megumi Akai-Kasaya, Takuro Tsuzuki, Akira Saito, Songpol Chaunchaiyakul, Pawel Krukowski
Publikováno v:
The Journal of Physical Chemistry C. 119:21434-21442
Adsorption of the M-type enantiomer of 2,13-bis(hydroxymethyl)[7]-thiaheterohelicene molecules deposited on Au(111) was investigated by scanning tunneling microscopy (STM) and current imaging tunneling spectroscopy (CITS). We observed preferential ad
Autor:
A. F. M. Mustafizur Rahman, Yuji Kuwahara, Naoki Komatsu, Gang Liu, Takahide Kimura, Songpol Chaunchaiyakul
Publikováno v:
Chemistry - A European Journal. 19:16221-16230
We developed a host-guest methodology for separation of single-walled carbon nanotubes (SWNTs) according to the handedness, diameter and metallicity by the use of diporphyrin nanotweezers and nanocalipers. Although the pyrene has been frequently used
Autor:
Feng Wang, Gang Liu, Yuji Kuwahara, Yukie Saito, Naoki Komatsu, Ajoy Kumar Bauri, Takahide Kimura, Songpol Chaunchaiyakul
Publikováno v:
Journal of the American Chemical Society. 135:4805-4814
We have been developing the methodology to discriminate the handedness and diameter of single-walled carbon nanotubes (SWNTs) through molecular recognition using chiral diporphyrin nanotweezers. Although relatively small diameters of SWNTs (1.0 nm) w
Autor:
Megumi Akai-Kasaya, Yuto Minagawa, Akira Saito, Pawel Krukowski, Nami Yajima, Songpol Chaunchaiyakul, Yuji Kuwahara
Publikováno v:
Nanotechnology. 27(45)
A modified method for the fabrication of a highly crystallized layer of aluminum oxide on a NiAl(110) surface is reported. The fabrication method involves the multistep selective oxidation of aluminum atoms on a NiAl(110) surface resulting from succe
Publikováno v:
Japanese Journal of Applied Physics. 55:098003
The effect of surface tension on the fabrication of Au tips was investigated. When using a 12 M HCl aqueous solution, the etching process did not consistently self-terminate after the lower part of the wire dropped, resulting in the poor reproducibil