Document Detail

Thin film nano solar cells--from device optimization to upscaling.
MedLine Citation:
PMID:  20352759     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Stainless steel based dye solar cells have been upscaled from small, laboratory size test cells of 0.32 cm2 active area to 6 cm x 6 cm "mini-modules" with active areas ca. 15 cm2. Stainless steel works as the photoelectrode substrate whilst the counter electrode is prepared on indium-doped tin oxide coated polyethyleneterephtalate or polyethylenenaphtalate plastic foil (fluorine-doped tin oxide coated glass as a reference). Additional current collector structures were deposited on the counter electrode substrate with inkjet-printing of silver nanoparticle ink in order to reduce the lateral resistance of the plastic foil. Flexible substrates enable roll-to-roll type industrial manufacturing of the cells and the steel's superior conductivity compared to the typical substrate materials such as glass and plastic makes it possible to prepare even substantially larger modules. The best efficiencies obtained this far with the "mini-module" using a stainless steel photoelectrode are 2.5% with a platinum-sputtered indium-doped tin oxide coated polyethyleneterephtalate counter electrode and 3.4% with a thermally platinized fluorine-doped tin oxide coated glass counter electrode. These efficiencies are on the same level than those measured with small cells prepared with similar methods and materials (3.4%-4.7%, depending on configuration, which are amongst the highest reported for this kind of a dye solar cell). Replacing expensive conducting glass with steel and plastic foils as the substrate materials leads also to economical savings in the cell production.
Minna Toivola; Time Peltola; Kati Miettunen; Janne Halme; Peter Lund
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of nanoscience and nanotechnology     Volume:  10     ISSN:  1533-4880     ISO Abbreviation:  J Nanosci Nanotechnol     Publication Date:  2010 Feb 
Date Detail:
Created Date:  2010-03-31     Completed Date:  2010-04-19     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101088195     Medline TA:  J Nanosci Nanotechnol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1078-84     Citation Subset:  -    
Helsinki University of Technology, Advanced Energy Systems, Department of Applied Physics, PO Box 5100, FIN-02015 TKK, Finland.
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