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Peccell DSC achieves over 4V voltage under illumination

Posted: 23 Sep 2004  Print Version  Bookmark and Share

Keywords:peccell technologies  dye-sensitized solar cell  dsc  titanium oxide paste  shoa denko kk 

Peccell Technologies Inc., a developer of film-type dye-sensitized solar cells (DSCs), has achieved a high voltage of over 4V under illumination.

A press release said that the electrode of the DSC is made of titanium oxide paste, which is based on fine particles of titanium oxide supplied by Shoa Denko KK (SDK). The paste is applicable to both film-type DSCs for portable applications and conventional glass-substrate DSCs.

SDK has developed a new technology that enables nano-scale control of primary particle sizes of titanium oxide, producing fine particles of any size between 10nm and 500nm. The very fine particles have a large surface area, enabling a great quantity of dye to be adsorbed on the particle surface, the companies said. Additionally, the specially designed titanium oxide structure ensures smooth electron flow and electrolyte diffusion inside the film.

Peccell explained that in DSCs, a flow of excited electrons, which results from the absorption of sunlight by dye, is led to electrodes made of semiconductor particles, including titanium oxide, thereby causing electromotive force (photon-to-electron conversion). DSC is characterized by its low cost and high performance, the company added.

Peccell is planning to begin shipment of film-type DSC samples in 2006.





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