Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1528148 | Materials Chemistry and Physics | 2006 | 5 Pages |
Abstract
Size control of CuI grains and thus better-matched interfaces were observed in the presence of crystal growth inhibitors in the CuI coating solution for TiO2|dye|CuI solar cells. Evidence is given that these growth inhibitor molecules simultaneously act as an electron transfer mediator between the CuI and dye molecules via thiocyanate bridges. A reverse reaction of injected electrons from TiO2 nanoparticles electrochemically inactivates the thiocyanate electron transfer bridge in the illuminated cells causing photo-degradation.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
P.M. Sirimanne, H. Tributsch,