光电子快报(英文版), 2016, 12 (3): 161, Published Online: Oct. 12, 2017
Photoelectrochemical characteristics of TiO2nanorod arrays grown on fluorine doped tin oxide substrates by the facile seeding layer assisted hydrothermal method
Abstract
TiO2nanorod arrays (NRAs) were prepared on fluorine doped tin oxide (FTO) substrates by a facile two-step hydrothermal method. The nanorods were selectively grown on the FTO regions which were covered with TiO2seeding layer. It took 5 h to obtain the compact arrays with the nanorod length of ~2 μm and diameter of ~50 nm. The photoelectrochemical (PEC) properties of TiO2NRAs are also investigated. It is demonstrated that the TiO2NRAs indicate the good photoelectric conversion ability with an efficiency of 0.22% at a full-wavelength irradiation. A photocurrent density of 0.21 mA/cm2is observed at 0.7 V versus the saturated calomel electrode (SCE). More evidences suggest that the charge transferring resistance is lowered at an irradiation, while the flat-band potential (Vfb) is shifted towards the positive side.
SUI Mei-rong, HAN Cui-ping, GU Xiu-quan, WANG Yong, TANG Lu, TANG Hui. Photoelectrochemical characteristics of TiO2nanorod arrays grown on fluorine doped tin oxide substrates by the facile seeding layer assisted hydrothermal method[J]. 光电子快报(英文版), 2016, 12(3): 161.