Details

Autor(en) / Beteiligte

• Wu, Jihuai
• Wang, Jiangli
• Lin, Jianming
• Xiao, Yaoming
• Yue, Gentian
• Huang, Miaoliang
• Lan, Zhang
• Huang, Yunfang
• Fan, Leqing
• Yin, Shu
• Sato, Tsugio

Titel

Dual functions of YF3:Eu3+ for improving photovoltaic performance of dye-sensitized solar cells

Ist Teil von

• Scientific reports, 2013-06, Vol.3 (1), p.2058-2058, Article 2058

Ort / Verlag

London: Nature Publishing Group UK

Erscheinungsjahr

2013

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• In order to enhance the photovoltaic performance of dye-sensitized solar cell (DSSC), a novel design is demonstrated by introducing rare-earth compound europium ion doped yttrium fluoride (YF 3 :Eu 3+ ) in TiO 2 film in the DSSC. As a conversion luminescence medium, YF 3 :Eu 3+ transfers ultraviolet light to visible light via down-conversion and increases incident harvest and photocurrent of DSSC. As a p-type dopant, Eu 3+ elevates the Fermi level of TiO 2 film and thus heightens photovoltage of the DSSC. The conversion luminescence and p-type doping effect are demonstrated by photoluminescence spectra and Mott-Schottky plots. When the ratio of YF 3 :Eu 3+ /TiO 2 in the doping layer is optimized as 5 wt.%, the light-to-electric energy conversion efficiency of the DSSC reaches 7.74%, which is increased by 32% compared to that of the DSSC without YF 3 :Eu 3+ doping. Double functions of doped rare-earth compound provide a new route for enhancing the photovoltaic performance of solar cells.