TY - JOUR
T1 - Ionic diffusion in various electrolytes and the implications for dye-sensitized solar cells
AU - Park, Jong Hyuk
AU - Choi, Kyu Jin
AU - Kang, Sang Wook
AU - Seo, Yongsok
AU - Kang, Yong Soo
AU - Kim, Junkyung
AU - Lee, Sang Soo
N1 - Funding Information:
This work was supported by a KIST internal project under contract 2E20980. We would like to thank Dr. Nam-Gyu Park at the Solar Cell Research Center at KIST for use of the IPCE and impedance measurements.
Copyright:
Copyright 2010 Elsevier B.V., All rights reserved.
PY - 2010/6/10
Y1 - 2010/6/10
N2 - 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.
AB - 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.
KW - Diffusion flux
KW - Dye-sensitized solar cell
KW - Electrolyte medium
KW - Oligomer electrolyte
UR - http://www.scopus.com/inward/record.url?scp=77953326006&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77953326006&partnerID=8YFLogxK
U2 - 10.1016/j.jphotochem.2010.03.010
DO - 10.1016/j.jphotochem.2010.03.010
M3 - Article
AN - SCOPUS:77953326006
SN - 1010-6030
VL - 213
SP - 1
EP - 6
JO - Journal of Photochemistry and Photobiology A: Chemistry
JF - Journal of Photochemistry and Photobiology A: Chemistry
IS - 1
ER -
