TY - JOUR
T1 - Improved performance of TiO 2 electrodes coated with NiO by magnetron sputtering for dye-sensitized solar cells
AU - Li, Li
AU - Chen, Renjie
AU - Jing, Ge
AU - Zhang, Guiyou
AU - Wu, Feng
AU - Chen, Shi
PY - 2010/5/1
Y1 - 2010/5/1
N2 - TiO 2 electrodes are coated with NiO by DC magnetron sputtering, and their structural, optical and electrochemical performance has been investigated. X-ray diffractometry (XRD), UV-vis spectrophotometry, scanning electron microscopy (SEM), AC impedance, and linear sweep voltammetry (LSV) are used to characterize the TiO 2 /NiO electrodes. Their performance is evaluated with a computer controlled electrochemical workstation in combination with three conventional electrodes. The experimental results indicate that the surface modification of TiO 2 electrodes with sputtered NiO reduces trap sites on TiO 2 and improves the electrochemical performance of dye-sensitized solar cells (DSSCs). Sputtering NiO for 7 min, which is about 21 nm thick, on 6.5 μm thick TiO 2 greatly improves the DSSC parameters, and the conversion efficiency increases from 3.21 to 4.16%. Mechanisms of the influence of the NiO coating on electrochemical performance are discussed. Crown
AB - TiO 2 electrodes are coated with NiO by DC magnetron sputtering, and their structural, optical and electrochemical performance has been investigated. X-ray diffractometry (XRD), UV-vis spectrophotometry, scanning electron microscopy (SEM), AC impedance, and linear sweep voltammetry (LSV) are used to characterize the TiO 2 /NiO electrodes. Their performance is evaluated with a computer controlled electrochemical workstation in combination with three conventional electrodes. The experimental results indicate that the surface modification of TiO 2 electrodes with sputtered NiO reduces trap sites on TiO 2 and improves the electrochemical performance of dye-sensitized solar cells (DSSCs). Sputtering NiO for 7 min, which is about 21 nm thick, on 6.5 μm thick TiO 2 greatly improves the DSSC parameters, and the conversion efficiency increases from 3.21 to 4.16%. Mechanisms of the influence of the NiO coating on electrochemical performance are discussed. Crown
KW - Dye-sensitized solar cells
KW - Magnetron sputtering
KW - Nickel oxide coating
KW - Titanium dioxide electrodes
UR - https://www.scopus.com/pages/publications/77950596426
U2 - 10.1016/j.apsusc.2010.02.042
DO - 10.1016/j.apsusc.2010.02.042
M3 - Article
AN - SCOPUS:77950596426
SN - 0169-4332
VL - 256
SP - 4533
EP - 4537
JO - Applied Surface Science
JF - Applied Surface Science
IS - 14
ER -