Ionic diffusion in various electrolytes and the implications for dye-sensitized solar cells

Title
Ionic diffusion in various electrolytes and the implications for dye-sensitized solar cells
Authors
박종혁최규진강상욱서용석강용수김준경이상수
Keywords
Dye-sensitized solar cell; Diffusion flux; Electrolyte medium; Oligomer electrolyte
Issue Date
2010-06
Publisher
Journal of photochemistry and photobiology. A, Chemistry
Citation
VOL 213, NO 1, 1-6
Abstract
The diffusion of I3− in volatile and non-volatile electrolytes is investigated to confirm the effects on the performance of dye-sensitized solar cells (DSSCs). The ionic diffusion is controlled by using electrolyte mediums with diverse viscosities including acetonitrile, 3-methoxy-propionitrile, diethylene glycol dimethyl ether, and poly(ethylene glycol dimethyl ether) with three different molecular weights and varying I3− concentrations. The diffusion flux in each electrolyte is characterized by scanning electrochemical microscopy. By measuring incident photon to current conversion efficiency, electrochemical impedance spectroscopy, and photovoltaic performance, the optimum diffusion flux of I3− is suggested for the best efficiency of DSSCs.
URI
http://pubs.kist.re.kr/handle/201004/37507
ISSN
1010-6030
Appears in Collections:
KIST Publication > Article
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