ELECTROCHEMICAL COUNTING OF PHOTON NUMBER USING THE ASSEMBLED MONOLAYER FILM OF AZO COMPOUND

Authors
MORIGAKI K LIU ZF HASHIMOTO K FUJISHIMA A
Citation
K. Morigaki et al., ELECTROCHEMICAL COUNTING OF PHOTON NUMBER USING THE ASSEMBLED MONOLAYER FILM OF AZO COMPOUND, Sensors and actuators. B, Chemical, 13(1-3), 1993, pp. 226-229
Citations number
6
Categorie Soggetti
Engineering, Eletrical & Electronic","Instument & Instrumentation
Journal title
Sensors and actuators. B, Chemical → ACNP
ISSN journal
09254005
Volume
13
Issue
1-3
Year of publication
1993
Pages
226 - 229
Database
ISI
SICI code
0925-4005(1993)13:1-3<226:ECOPNU>2.0.ZU;2-8
Abstract
A chemical actinometer using an assembled monolayer film of amphiphili c azo compound is proposed. It is based on the distinct difference in electrochemical reduction potential of trans- and cis-azo isomers. Thi s novel actinometry does not require any sophisticated mathematical tr eatment, since the light intensity is directly obtained from its linea r relationship to the current of faradaic charge in the electrochemica l reduction process. This enables simple and nearly instantaneous coun ting of photon number in photochemical and photoelectrochemical experi ments.