The energies of low-lying singlet excited states of oligothiophenes, xT's (x = 3 to 8), and polythiophene are determined using femtosecond time-resolved near-infrared spectroscopy. The energies are linearly correlated with the reciprocal number of...
Ashok Zachariah Samuel Sohshi Yabumoto Kenichi Kawamura Koichi Iwata
ANALYST 140(6) 1847-1851 2015年 [査読有り]
Raman imaging is one of the very informative methods for the characterization of chemically and structurally heterogeneous materials without employing specific molecular labels. Multifocus Raman imaging is one of the fast-imaging alternatives to t...
JOURNAL OF PHYSICAL CHEMISTRY B 118(29) 8631-8641 2014年7月 [査読有り]
A number of biochemical reactions proceed inside biomembranes. Because the rate of a chemical reaction is influenced by chemical properties of the reaction field, it is important to examine the chemical properties inside the biomembranes, or lipid...
JOURNAL OF PHYSICAL CHEMISTRY A 118(23) 4071-4078 2014年6月 [査読有り]
Carotenoids have two major low-lying excited states, the second lowest (S-2 (1B(u)(+))) and the lowest (S-1 (2A(g)(-))) excited singlet states, both of which are suggested to be involved in the energy transfer processes in light-harvesting complex...
JOURNAL OF RAMAN SPECTROSCOPY 39(11) 1512-1517 2008年11月 [査読有り]
Ultrafast bimolecular radical reaction proceeds between photoexcited p-terphenyl and carbon tetrachloride. The lifetime of the first excited singlet (Si) state of p-terphenyl in carbon tetrachloride measured with picosecond time-resolved fluoresce...
JOURNAL OF CHEMICAL PHYSICS 130(1) 014501-1-014501-9 2009年1月
Femtosecond time-resolved absorption anisotropy spectroscopy by multichannel detection has been developed. The charge transfer (CT) character and dynamics of the UV-photoexcited 9,9(')-bianthryl (BA) in heptane, acetonitrile, and ethanol are revea...
2013 Korea - Japan Symposium on Frontier Photoscience (KJFP-2013), Invited Lecture 50, Hoam Faculty House, Seoul National University, Seoul , Korea 2013年
人文科学研究科
理学部