20%-efficient epitaxial GaAsP/Si tandem solar cells

Epitaxial Silicon Solar Cells

Highly efficient photocathodes for dye-sensitized tandem solar cells.

Thin-film dye-sensitized solar cells (DSCs) based on mesoporous semiconductor electrodes are low-cost alternatives to conventional silicon devices. High-efficiency DSCs typically operate as photoanodes (n-DSCs), where photocurrents result from dye-sensitized electron injection into n-type semiconductors. Dye-sensitized photocathodes (p-DSCs) operate in an inverse mode, where dye-excitation is f...

Young Kim , All - Solution Processing Efficient Tandem Polymer Solar Cells

www.sciencemag.org (this information is current as of July 27, 2007 ): The following resources related to this article are available online at http://www.sciencemag.org/cgi/content/full/317/5835/222 version of this article at: including high-resolution figures, can be found in the online Updated information and services, http://www.sciencemag.org/cgi/content/full/317/5835/222/DC1 can be found a...

Efficient tandem polymer solar cells fabricated by all-solution processing.

Tandem solar cells, in which two solar cells with different absorption characteristics are linked to use a wider range of the solar spectrum, were fabricated with each layer processed from solution with the use of bulk heterojunction materials comprising semiconducting polymers and fullerene derivatives. A transparent titanium oxide (TiO(x)) layer separates and connects the front cell and the b...

Investigation of Indigo/thioindigo Tandem Dye-Sensitized Solar Cells

In this paper we used two free-metal organic dyes (dye 1 and dye 2) based on indigo and thioindigo with cyanoacrylic acid as the electron acceptor group. The proposed dyes were sensitized from naphalene as the starting material by standard reactions and characterized by different analytical techniques and UV-Visible spectroscopy after purification. Spectrophotometric measurements of the organic...