期刊
COMPTES RENDUS CHIMIE
卷 9, 期 2, 页码 315-324出版社
centre Mersenne pour ldition scientifique ouverte
DOI: 10.1016/j.crci.2005.03.027
关键词
chemical logic gates; photoelectric properties; Prussian blue; semiconducting materials; titanium dioxide; cadmium sulfide
Photoelectrochemical properties of multicomponent photoelectrodes based on titanium dioxide and cadmium sulfide powders modified with hexacyanoferrate complexes have been examined. Photocurrent responses were recorded as functions of applied potential and photon energy. Surprisingly, the photocurrent can be switched between positive and negative values as a result of potential or photon energy changes. This new effect called PhotoElectrochemical Photocurrent Switching (PEPS) opens a possibility of new chemical switches and logic gates construction. Boolean logic analysis and a tentative mechanism of the device are discussed.
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