Substituted Tris(bipyridine)Cobalt(ii) Complexes in Dsscs

Substituted Tris(bipyridine)Cobalt(ii) Complexes in Dsscs

AngličtinaMäkká väzbaTlač na objednávku
Nelson Jeremy
LAP Lambert Academic Publishing
EAN: 9783838313320
Tlač na objednávku
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Podrobné informácie

Appropriately substituted tris(bipyridine)cobalt(II) complexes (Co-bpy) have been found to function adequately as electron transfer mediators in dye-sensitized solar cells (DSSCs). However, the performance of Co-bpy in DSSCs has so far not equaled that of more traditional mediators based on the iodide/triiodide redox couple. This book primarily focuses on research conducted to investigate the reason for the poorer performance of Co-bpy mediators, although significant attention is also given to efforts to develop a solid-state Co-bpy DSSC. A series of two-electrode experiments was devised and an apparatus built to perform three-electrode experiments, a task made more complex by the thin layer, "sandwich cell" geometry of the DSSC. The results of this work suggested that mass transfer of the Co-bpy is often rate-limiting and significantly slower than that of iodide-based mediators. A mostly theoretical treatment of mass transfer predicted that diffusion within the mesoporous titania layer, rather than an intrinsically slow bulk diffusion rate, is hampering DSSC performance. This work should be of interest to researchers investigating DSSCs or diffusion within nanostructures.
EAN 9783838313320
ISBN 3838313321
Typ produktu Mäkká väzba
Vydavateľ LAP Lambert Academic Publishing
Dátum vydania 31. augusta 2009
Stránky 240
Jazyk English
Rozmery 229 x 152 x 14
Krajina Germany
Čitatelia General
Autori Nelson Jeremy