An organic hydrophilic dye for water-based dye-sensitized solar cells

Autor:	Anders Hagfeldt, Valentina Leandri, Erik Gabrielsson, Gerrit Boschloo, Hanna Ellis, Licheng Sun
Rok vydání:	2014
Předmět:	chemistry.chemical_classification Energy conversion efficiency Inorganic chemistry General Physics and Astronomy Electrolyte Dye-sensitized solar cell chemistry.chemical_compound chemistry PEDOT:PSS Chenodeoxycholic acid Desorption Wetting Physical and Theoretical Chemistry Alkyl
Zdroj:	Phys. Chem. Chem. Phys.. 16:19964-19971
ISSN:	1463-9084 1463-9076
Popis:	In this study we report the first organic hydrophilic dye employed for 100% water-based electrolyte DSSCs. We show that the replacement of alkyl by glycolic chains in the dye structure is able to provide excellent wettability, resulting in an efficient system with remarkably reduced desorption problems that allowed us to perform tests over a wide pH range. By changing the electrolyte composition, employing chenodeoxycholic acid as a co-adsorbent and using PEDOT counter-electrodes, 3% power conversion efficiency under 1-sun illumination was obtained. We show that chenodeoxycholic acid does not significantly increase the wettability, and we provide new insights into the higher performance resulting from its co-adsorption.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::949cc65b7e6ee2093dc7492c2c8b2038 https://doi.org/10.1039/c4cp02774d Zobrazit plný text záznamu