Enhance the Performance of Dye-Sensitized Solar Cells by Co-grafting Amphiphilic Sensitizer and Hexadecylmalonic Acid on TiO2 Nanocrystals

By Peng Wang, S. M. Zakeeruddin, Pascal Comte, Raphaël Charvet, R. Humphry‐Baker, M. Graetzel. 2003

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Dye-sensitized solar cells have been fabricated based on nanocrystalline TiO2 film derivatized with an amphiphilic polypyridyl ruthenium complex, cis-RuLL‘(SCN)2 (L = 4,4‘-dicarboxylic acid-2,2‘-bipyridine, L‘ = 4,4‘-dinonyl-2,2‘-bipyridine), as light-harvester and hexadecylmalonic acid (HDMA) as coadsorbent. The cells generated a short-circuit photocurrent of 15.2 mA cm-2, an open-circuit photovoltage of 764 mV, and a total power conversion efficiency of 7.8% under simulated full sunlight (air mass 1.5, 100 mW cm-2). Co-grafting enhanced the photocurrent, photovoltage, and overall conversion efficiency considerably with respect to cells containing no HDMA. Devices showed a good stability under light soaking at 55 °C.

Subfields: Materials Chemistry, Renewable Energy, Sustainability and the Environment

View Paper: https://www.semanticscholar.org/paper/2660b1c243d0be58a90ebe8ea492dcc7cd0fba08

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In Materials Chemistry

In Renewable Energy, Sustainability and the Environment

Citations in the corpus

Fabrication of screen‐printing pastes from TiO2 powders for dye‐sensitised solar cells (2007, methodology): “Finally, the ethanol is exchanged with a-terpineol by sonication and evaporation.(3) Totally, it takes 3 days.”