Hollow TiO2 microspheres were synthesized from TiCl3 by a simple hydrothermal method.In order to improve the performance of DSSC,double-layerd photoanode was fabricated by using P25/NaYF4∶Yb3+,Er3+ as substrate layer and hollow TiO2 microshperes as the reflecting layer.The results shown that the double-layer TiO2 photoanode exhibited an open-circuit photovoltage (Voc) of 0.78,a short-circuit photovoltage(Jsc) of 16.81mA/cm2,a fill factor (FF) of 0.66,which lead to an overall energy-conversion efficiency (η) of 8.65%.Compared with the electrodes made of P25(6.70%) and P25/NaYF4∶Yb3+,Er3+(7.35%),a increase of 29% and 18% energy-conversion efficiency was observed respectively.
Zhu Qing, Li Chengsheng, Bao Yu, Wan Haoyun, Yu Ying, Yuan Zhiqiang
. Formation of hollow TiO2 microsphere and application in NaYF4∶Yb3+,Er3+/P25 dye-sensitized solar cells[J]. New Chemical Materials, 2021
, 49(2)
: 218
-222
.
DOI: 10.19817/j.cnki.issn 1006-3536.2021.02.050
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