| Autor: |
Thi Vu, Hong Ha, Atabaev, Timur Sh., Ahn, Ji Young, Dinh, Nguyen Nang, Kim, Hyung-Kook, Hwang, Yoon-Hwae |
| Zdroj: |
Journal of Materials Chemistry A; 5/28/2015, Vol. 3 Issue 20, p11130-11136, 7p |
| Abstrakt: |
Phosphor particles were introduced as a luminescent medium to improve the overall efficiency of dye sensitized solar cells (DSSCs). In the preparation process, TiO2 and phosphor particles were mixed to make photoelectrodes with bilayer (TiO2/mix), 3-layer (TiO2/mix/TiO2) and 4-layer (TiO2/mix/TiO2/mix) structures. The cell with the bilayer structure (TiO2/mix) after treating with TiCl4 solution showed the highest light-to-electric energy conversion efficiency (8.78%), which was ∼25.8% higher than that of a cell with a pure TiO2 layer under the same experimental conditions. The improvement in the energy conversion efficiency of DSSCs was attributed to phosphor enhanced incident light-harvesting via up- and down-conversion luminescence processes, resulting in an increase in the photocurrent. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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