Synergistic Strategies for the Preparation of Highly Efficient Dye-Sensitized Solar Cells on Plastic substrates: Combination of Chemical and Physical Sintering

Title
Synergistic Strategies for the Preparation of Highly Efficient Dye-Sensitized Solar Cells on Plastic substrates: Combination of Chemical and Physical Sintering
Authors
리위롱유기천이도권김진영손해정Kim, Jong Hak이철호Hernan Miguez고민재
Keywords
dye-sensitized; chemical sintering; nanoglue
Issue Date
2015-09
Publisher
RSC advances
Citation
VOL 5, NO 94, 76795-76803
Abstract
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
URI
http://pubs.kist.re.kr/handle/201004/50585
ISSN
20462069
Appears in Collections:
KIST Publication > Article
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