M. Yamada et Ss. Shiratori, Smoke sensor using mass controlled layer-by-layer self-assembly of polyelectrolytes films, SENS ACTU-B, 64(1-3), 2000, pp. 124-127
Remarkable smoke-detecting characteristics were established by forming ultr
a-thin organic films on an electrode of a quartz crystal microbalance (QCM)
by a layer-by-layer sequential adsorption process utilizing polyelectrolyt
es. The amount of smoke adsorbed onto the polyelectrolyte film was controll
ed by adjusting the bilayer composition ratio of polycation/polyanion using
the automatic dipping machine with a film-mass control system we have deve
loped. The optimization of film structure for the purpose of developing a h
ighly sensitive sensor for smoke was established for the first time. By usi
ng a newly built system and these characteristics, an extremely sensitive s
moke detector was developed. (C) 2000 Elsevier Science S.A. All rights rese
rved.