LANGMUIR-BLODGETT-FILMS OF LANTHANIDE DIPHTHALOCYANINES AS ENVIRONMENTAL TOBACCO-SMOKE SENSORS

Authors
RODRIGUEZMENDEZ ML KHOUSSED Y SOUTO J SARABIA J AROCA R DESAJA JA
Citation
Ml. Rodriguezmendez et al., LANGMUIR-BLODGETT-FILMS OF LANTHANIDE DIPHTHALOCYANINES AS ENVIRONMENTAL TOBACCO-SMOKE SENSORS, Sensors and actuators. B, Chemical, 18(1-3), 1994, pp. 89-92
Citations number
17
Categorie Soggetti
Engineering, Eletrical & Electronic","Instument & Instrumentation
Journal title
Sensors and actuators. B, Chemical → ACNP
ISSN journal
09254005
Volume
18
Issue
1-3
Year of publication
1994
Pages
89 - 92
Database
ISI
SICI code
0925-4005(1994)18:1-3<89:LOLDAE>2.0.ZU;2-3
Abstract
Langmuir-Blodgett (LB) films of praseodymium, gadolinium, ytterbium di phthalocyanines and octa-tert-butyl praseodymium diphthalocyanine have been prepared on various substrates. The spectroscopic characterizati on (UV-Vis and Raman) of the films before and after being exposed to a tobacco smoke side stream (SS) has been carried out. The chemisorptio n of the SS to the lanthanide diphthalocyanines LB films reversibly fo rms a complex that reduces the oxidation state of the material. These changes can be followed in the electronic and vibrational spectra. The potential use as a tobacco smoke sensor is discussed.