TY - JOUR
T1 - Photoelectrochemical switch based on cis-Azobenzene chromophore modified TiO2 nanowires
AU - Lv, Xiaojun
AU - Chang, Haixin
AU - Zhang, Hao
N1 - Funding Information:
This work was financially supported by the National Natural Science Foundation of China (No. 20975060 ), National Basic Research Program of China (No. 2007CB310500 ). Thanks professor Jinghong Li for the advice and suggestion of experiments and discussion. H.X.C. acknowledges the WPI Initiative funding for young researchers from JSPS and MEXT, Japan.
PY - 2011/9/15
Y1 - 2011/9/15
N2 - Carboxylated-azobenzene chromophore modified TiO2 nanowire composites were prepared and characterized. Photocurrent measured with monochromatic incident light irradiation results showed that azobenzene modified TiO2 nanowire electrode had obviously higher photocurrent and broader visible light response covering range of 350-650 nm, and the wavelength position corresponding to the maximum photocurrent was red shift to about 470 nm. After alternate irradiation with UV and visible light, the azobenzene modified TiO2 nanowire electrode exhibited obvious photoelectrochemical switching properties. Furthermore, the photocurrent under visible light irradiation was much higher than that under UV irradiation due to the cis-to-trans isomerization transformation of azobenzene chromophore.
AB - Carboxylated-azobenzene chromophore modified TiO2 nanowire composites were prepared and characterized. Photocurrent measured with monochromatic incident light irradiation results showed that azobenzene modified TiO2 nanowire electrode had obviously higher photocurrent and broader visible light response covering range of 350-650 nm, and the wavelength position corresponding to the maximum photocurrent was red shift to about 470 nm. After alternate irradiation with UV and visible light, the azobenzene modified TiO2 nanowire electrode exhibited obvious photoelectrochemical switching properties. Furthermore, the photocurrent under visible light irradiation was much higher than that under UV irradiation due to the cis-to-trans isomerization transformation of azobenzene chromophore.
KW - Azobenzene modified
KW - Higher photocurrent
KW - Photoelctrochemical switch
KW - TiO nanowires
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U2 - 10.1016/j.optcom.2011.06.047
DO - 10.1016/j.optcom.2011.06.047
M3 - Article
AN - SCOPUS:80051591839
VL - 284
SP - 4991
EP - 4995
JO - Optics Communications
JF - Optics Communications
SN - 0030-4018
IS - 20
ER -