In photoelectrochemical sensing, the interaction between analytes
and the illuminated photoelectrochemically active materials leads to
photocurrent change of the photoelectrochemically active materials.
To date, as an important photoelectrochemically active material,
quantum dots (QDs) have attracted much attention due to its unique
size- and shape-dependent properties. When QDs are illuminated, an
electron–hole pair is generated in the conduction and valence band, respectively
[6]. Electrons transfer fromthe conduction band of the QDs to
the electrode with an appropriate energy level and the holes react with
the electrolyte at the semiconductor surface, resulting in anodic photocurrent.
Reductive substances in electrolyte solution including H2O2 [1],
In photoelectrochemical sensing, the interaction between analytesand the illuminated photoelectrochemically active materials leads tophotocurrent change of the photoelectrochemically active materials.To date, as an important photoelectrochemically active material,quantum dots (QDs) have attracted much attention due to its uniquesize- and shape-dependent properties. When QDs are illuminated, anelectron–hole pair is generated in the conduction and valence band, respectively[6]. Electrons transfer fromthe conduction band of the QDs tothe electrode with an appropriate energy level and the holes react withthe electrolyte at the semiconductor surface, resulting in anodic photocurrent.Reductive substances in electrolyte solution including H2O2 [1],
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