Photovoltage improvement for dye-sensitized solar cells
2011 (English)In: Dye-Sensitized Solar Cells and Solar Cell Performance, Nova Science Publishers, Inc., 2011, 71-98 p.Chapter in book (Other academic)
The efficiency improvement of dye-sensitized solar cells (DSCs) is critical for their commercialization and replacement of traditional silica solar cells. Generally, the energy conversion efficiency of DSCs is determined by the short-circuit photocurrent, the opencircuit photovoltage and fill factor. During the development of DSCs, it is now generally recognized that the photovoltage is the principal factor that restricts the further improvement of DSCs. In this chapter, we will firstly describe the fundamental energy conversion mechanism of DSCs and deduce from the theoretical point of view the factors that affect the photovoltage. Afterward, the relationship between the photovoltage and the main components of DSCs, which include the sensitizer, photoanode, electrolyte, coadsorbent and additive, will be outlined and analyzed. Meanwhile, the main strategies to improve the photovoltage of DSCs, for example, enhancing the blocking effect of the sensitizer, the addition of additives, introducing inorganic barrier on the TiO2 film, employing highly ordered nanostructure photoanode and electrolyte with lower energy level will be presented. © 2012 by Nova Science Publishers, Inc. All rights reserved.
Place, publisher, year, edition, pages
Nova Science Publishers, Inc., 2011. 71-98 p.
IdentifiersURN: urn:nbn:se:kth:diva-148686ScopusID: 2-s2.0-84892923330ISBN: 9781612096339OAI: oai:DiVA.org:kth-148686DiVA: diva2:747217