TY - JOUR
T1 - Enhancing the photoelectric conversion of dye-sensitized solar cell via nitrogen-doped nanocrystalline titania electrode
AU - Cheng, Ping
AU - Lan, Tian
AU - Yang, Haijun
AU - Wang, Wanjun
AU - Wu, Haixia
AU - Deng, Changsheng
AU - Dai, Xiaming
AU - Guo, Shouwu
PY - 2010/11
Y1 - 2010/11
N2 - A high efficient dye-sensitized solar cell (DSC) was fabricated using nitrogen-doped nanocrystalline titania(Ti0 2) photoanode. X-ray photoelectron spectroscopy (XPS), diffuse reflectance spectroscopy (DRS), X-ray powder diffraction (XRD), zeta potentials, nitrogen adsorption-desorption and elemental analysis experiments were employed to characterize the nitrogen-doped nanocrystalline TiC 2 photoanode. An obvious enhancement of the optical absorption in the range of 380-550 nm was observed for nitrogen-doped TiC 2, which was attributed to both the substitutional N and the chemisorbed N 2 molecules. A conversion efficiency of 9.04% was obtained on the DSC based on nitrogen-doped TiC 2 photoanode annealed in a flow of NH 3 at 550 °C , with an increase of 15.6% improvement in comparison with pure TiC 2 (7.82%). The mechanism for the enhanced photovoltaic performance was discussed.
AB - A high efficient dye-sensitized solar cell (DSC) was fabricated using nitrogen-doped nanocrystalline titania(Ti0 2) photoanode. X-ray photoelectron spectroscopy (XPS), diffuse reflectance spectroscopy (DRS), X-ray powder diffraction (XRD), zeta potentials, nitrogen adsorption-desorption and elemental analysis experiments were employed to characterize the nitrogen-doped nanocrystalline TiC 2 photoanode. An obvious enhancement of the optical absorption in the range of 380-550 nm was observed for nitrogen-doped TiC 2, which was attributed to both the substitutional N and the chemisorbed N 2 molecules. A conversion efficiency of 9.04% was obtained on the DSC based on nitrogen-doped TiC 2 photoanode annealed in a flow of NH 3 at 550 °C , with an increase of 15.6% improvement in comparison with pure TiC 2 (7.82%). The mechanism for the enhanced photovoltaic performance was discussed.
KW - Dye-sensitized solar cell
KW - Nitrogen-doped
KW - Photovoltaic performance
KW - Titania
UR - http://www.scopus.com/inward/record.url?scp=79955533996&partnerID=8YFLogxK
U2 - 10.1166/jnn.2010.2788
DO - 10.1166/jnn.2010.2788
M3 - Article
AN - SCOPUS:79955533996
SN - 1533-4880
VL - 10
SP - 7698
EP - 7702
JO - Journal of Nanoscience and Nanotechnology
JF - Journal of Nanoscience and Nanotechnology
IS - 11
ER -
