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- Title
Preparation of long persistent phosphor SrAlO:Eu, Dy and its application in dye-sensitized solar cells.
- Authors
Zhang, Jinfang; Lin, Jianming; Wu, Jihuai; Zhang, Sheng; Zhou, Pei; Chen, Xin; Xu, Rui
- Abstract
SrAlO:Eu, Dy powder has been successfully prepared via a combustion method and then introduced into the titanium dioxide (TiO) film photoanode of the dye-sensitized solar cell (DSSC). The influence of the amount of doping on the light-to-electric energy conversion efficiency was discussed. At the concentration 7 wt% of SrAlO:Eu, Dy (weight ratio of phosphor powder to TiO), an overall 20 % improvement was achieved compared to that of the DSSC without SrAlO:Eu, Dy phosphor doping. The enhancement is mainly due to the presence of the long persistent phosphor doping. It can convert ultraviolet to visible luminescence via down-conversion luminescence. Owing to the emission of long persistent light, the DSSC with SrAlO:Eu, Dy showed an efficiency of 0.0076 % in the dark after illuminated under a simulated solar light for 1 min. This method represents a novel approach to increase the efficiency of DSSC.
- Subjects
DYE-sensitized solar cells; STRONTIUM compounds; TITANIUM dioxide films; LUMINESCENCE; SOLAR energy
- Publication
Journal of Materials Science: Materials in Electronics, 2016, Vol 27, Issue 2, p1350
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-015-3896-0