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Synergistic strategies for the preparation of highly efficient dye-sensitized solar cells on plastic substrates: combination of chemical and physical sintering

Opened Access Synergistic strategies for the preparation of highly efficient dye-sensitized solar cells on plastic substrates: combination of chemical and physical sintering

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Autor: Li, Yuelong
Yoo, Kicheon
Lee, Doh-Kwon
Kim, Jin Young
Son, Hae Jung
Kim, Jong Hak
Lee, Chul-Ho
Ko, Min Jae
Miguez García, Hernán
Fecha: 2015
Tipo de documento: Artículo
Resumen: Preparation of well-interconnected TiO2 electrodes at low temperature is critical for the fabrication of highly efficient dye-sensitized solar cells (DSCs) on plastic substrates. Herein we explore a synergistic approach using a combination of chemical and physical sintering. We formulate a binder-free TiO2 paste based on “nanoglue” as the chemical sintering agent, and use it to construct a photoelectrode on plastic by low-temperature physical compression to further improve the connectivity of TiO2 films. We systematically investigated the factors affecting the photovoltaic performance and found the conditions to achieve electron diffusion lengths as long as 25 mm and charge collection efficiencies as high as 95%, as electrochemical impedance spectroscopy measurements indicate. We apply this approach to obtain a DSC deposited on plastic displaying 6.4% power conversion efficiency based on commercial P25 titania particles
Tamaño: 959.3Kb
Formato: PDF

URI: https://hdl.handle.net/11441/72177

DOI: 10.1039/c5ra10290a

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