کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1441750 | 1509426 | 2011 | 4 صفحه PDF | دانلود رایگان |

Infiltration of a molten hole conductor in a mesoporous film at an elevated temperature exhibits good wetting performance and the procedure is therefore suitable as part of the preparation method for solid state dye-sensitized solar cells. Herein, we present a system prepared by infiltrating 4-(diethyl-amino)benzaldehyde-1,1)-diphenyl-hydrazone in its molten form at a temperature below 150 °C. The system displays a maximum photon-to-current conversion efficiency of about 35%, a value corresponding to an increase of about 5 times in comparison with a previously published system prepared by infiltrating a molten hole-conductor at a temperature exceeding 250 °C. By means of comparing charge transport and recombination with the results measured for a liquid analogue, we conclude that whereas the transport rates are similar, recombination is significantly more rapid in the solid-state device.
► We infiltrate a hole conductor in its molten form.
► Low melting point suggests reduced dye degradation.
► Electrodes were used for solar cells.
► Key efficiency limiting factor is rapid recombination.
Journal: Synthetic Metals - Volume 161, Issues 21–22, November–December 2011, Pages 2280–2283