Details

Autor(en) / Beteiligte

• Liu, Qiuping
• Zhou, Yang
• Duan, Yandong
• Wang, Min
• Lin, Yuan

Titel

Improved photovoltaic performance of dye-sensitized solar cells (DSSCs) by Zn+Mg co-doped TiO(2) electrode

Ist Teil von

• Electrochimica acta, 2013-04, Vol.95, p.48-53

Erscheinungsjahr

2013

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Zn+Mg co-doped TiO(2) and the pure TiO(2) nanoparticles were prepared by the hydrothermal method. The pure TiO(2) and Zn+Mg co-doped TiO(2) were analyzed by X-ray photoelectron spectroscopy, X-ray diffraction, transmission electron miscroscopy, energy dispersive X-ray, UV-vis diffuse reflectance absorption spectra. Under a simulated solar light irradiation of 100 mWcm(-2), the cell based on doped TiO(2) electrode achieved a conversion efficiency of 9.07%, which is noticeably increased by 26.7% compared with undoped TiO(2) based DSSC (7.16%). The enhancement of conversion efficiency of the Zn+Mg co-doped TiO(2) was attributed to the positive shift of the flat band potentials and fast electron transport in TiO(2) films. The mechanism was suggested by intensity modulated photocurrent spectroscopy and intensity modulated photovoltage spectroscopy measurement.