TY - JOUR
T1 - Molecular sifter using space controlled Langmuir-Blodgett films by fullerene molecules
AU - Shiratori, Seimei Sha
AU - Shimizu, Motoi
AU - Ikezaki, Kazuo
N1 - Funding Information:
The authors thank to Prof. Moriizumi and Prof. Nakamoto of the Tokyo Institute of Technology and Mr. Junichi Ide of T. Hasegawa Co., Ltd. for their important advice on this study. The authors also thank Prof. M.F. Rubner and Mr. Michael Durstock of the Massachusetts Institute of Technology in the USA for their precious comments on this study. A part of this work was supported by the Tateisi Science and Technology Foundation and Grants-in-Aid for Scientific Research from the Ministry of Education, Science and Culture of Japan.
PY - 1998
Y1 - 1998
N2 - We have found that the intermolecular spacing of an arachidc acid (C20) Langmuir-Blodgett (LB) film can be controlled by introducing a variable amount of spacer molecules such as fullerene (C60) into the film. Using this characteristic, several kinds of mixed LB films, composed of C20 and C60, were prepared and the adsorption characteristics of gas molecules, namely phytoncid (e.g. limonene, α-pinene), to these films were studied using a quartz crystal microbalance. The dependence of the amount of the gas adsorbed on the number of layers reveal that the permeability of the gas molecules into the LB films remarkably increases with an increase of the intermolecular spacing of LB films. Gas molecules with different sizes or structures were sifted by using C60 containing LB films. This characteristic of the LB films containing C60 can be applied to a novel gas sensor with a molecular sifter function.
AB - We have found that the intermolecular spacing of an arachidc acid (C20) Langmuir-Blodgett (LB) film can be controlled by introducing a variable amount of spacer molecules such as fullerene (C60) into the film. Using this characteristic, several kinds of mixed LB films, composed of C20 and C60, were prepared and the adsorption characteristics of gas molecules, namely phytoncid (e.g. limonene, α-pinene), to these films were studied using a quartz crystal microbalance. The dependence of the amount of the gas adsorbed on the number of layers reveal that the permeability of the gas molecules into the LB films remarkably increases with an increase of the intermolecular spacing of LB films. Gas molecules with different sizes or structures were sifted by using C60 containing LB films. This characteristic of the LB films containing C60 can be applied to a novel gas sensor with a molecular sifter function.
KW - Arachidic acid
KW - Fullerene
KW - Gas sensor
KW - Langmuir-Blodgett film
KW - Molecular sifter
KW - Quartz crystal microbalance
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U2 - 10.1016/s0040-6090(98)00734-2
DO - 10.1016/s0040-6090(98)00734-2
M3 - Article
AN - SCOPUS:0032137966
SN - 0040-6090
VL - 327-329
SP - 655
EP - 658
JO - Thin Solid Films
JF - Thin Solid Films
IS - 1-2
ER -