Blake Farrow, working in the group of Prashant Kamat, has created a video showing how to make a dye-sensitized solar cell. The nice point is that the basic elements of the DSC are extracted from food: they make the nanostructured titania calcinating a donut, and they make the sensitivization with purple tea leaves. The video also nicely shows that a solar cell can be created by chemical route with relatively simple steps, which is a serious key point for DSC industrialization.
The efficiency shouldn’t be high as this is a fun project but certainly it gives a photocurrent, about 40-50 microamps under sunlight filtered through the labwindow.
See it yourself