TY - JOUR
T1 - Improved long-term durability of a parallel-type dye-sensitized solar cell module using a platinum metal grid fabricated by direct current magnetron sputtering with heat treatment
AU - Son, Min Kyu
AU - Seo, Hyunwoong
AU - Kim, Soo Kyoung
AU - Hong, Na Yeong
AU - Kim, Byung Man
AU - Park, Songyi
AU - Prabakar, Kandasamy
AU - Kim, Hee Je
N1 - Funding Information:
This work was supported by National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) ( No. 20110001295 ).
PY - 2013
Y1 - 2013
N2 - A parallel-type grid module is used widely in the dye-sensitized solar cells (DSSCs). In most parallel-grid DSSC modules, silver (Ag) is used as the grid metal owing to its high conductivity. On the other hand, Ag is disadvantageous to the durability of the module because it readily undergoes corrosion from the iodide electrolyte that causes electrolyte degradation. In this study, a Ag grid in a parallel DSSC module is replaced by a platinum (Pt) grid to improve the stability of the parallel DSSC module. The Pt grid is fabricated by direct current magnetron sputtering with substrate heat treatment. Although the sheet resistance of the Pt grid is slightly higher than that of the Ag grid, the Pt grid is effective as a grid structure, reducing the internal series resistance in the DSSC. Furthermore, the durability of the Pt grid module is improved, maintaining 4.1% air mass (AM) 1.5 efficiency after 1700 h, because no electrolyte degradation or corrosion of the grid structure occurs.
AB - A parallel-type grid module is used widely in the dye-sensitized solar cells (DSSCs). In most parallel-grid DSSC modules, silver (Ag) is used as the grid metal owing to its high conductivity. On the other hand, Ag is disadvantageous to the durability of the module because it readily undergoes corrosion from the iodide electrolyte that causes electrolyte degradation. In this study, a Ag grid in a parallel DSSC module is replaced by a platinum (Pt) grid to improve the stability of the parallel DSSC module. The Pt grid is fabricated by direct current magnetron sputtering with substrate heat treatment. Although the sheet resistance of the Pt grid is slightly higher than that of the Ag grid, the Pt grid is effective as a grid structure, reducing the internal series resistance in the DSSC. Furthermore, the durability of the Pt grid module is improved, maintaining 4.1% air mass (AM) 1.5 efficiency after 1700 h, because no electrolyte degradation or corrosion of the grid structure occurs.
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U2 - 10.1016/j.jpowsour.2012.08.080
DO - 10.1016/j.jpowsour.2012.08.080
M3 - Article
AN - SCOPUS:84866492107
VL - 222
SP - 333
EP - 339
JO - Journal of Power Sources
JF - Journal of Power Sources
SN - 0378-7753
ER -