TY - JOUR
T1 - A low-cost counter electrode of ITO glass coated with a graphene/Nafion® composite film for use in dye-sensitized solar cells
AU - Yeh, Min Hsin
AU - Sun, Chia Liang
AU - Su, Jheng Sin
AU - Lin, Lu Yin
AU - Lee, Chuan Pei
AU - Chen, Chia Yuan
AU - Wu, Chun Guey
AU - Vittal, R.
AU - Ho, Kuo Chuan
PY - 2012/9
Y1 - 2012/9
N2 - Carbon black (CB), multi-walled carbon nanotube (MWCNT), and graphene (GN) were examined as catalytic films on the counter electrodes (CEs) of dye-sensitized solar cells (DSSCs). GN exhibits the best performance among these materials for the corresponding cell. A composite film of GN/Nafion® was next used as the catalytic film on the CE of a DSSC. Nafion® is demonstrated to be an excellent dispersant for inhibiting the aggregation of GN. A solar-to-electricity conversion efficiency (η) of 8.19% was achieved for the DSSC sensitized by TBA(Ru[(4-carboxylic acid-4′-carboxylate-2,2′- bipyridine)(4,4′-bis(5-(hexylthio)-2,2′-bithien-5′-yl)-2, 2′-bipyridine)(NCS) 2]), i.e., CYC-B11 dye, which was synthesized by our group, after the optimization of the composition of GN/Nafion®, and an η of 8.89% was exhibited for the cell with a sputtered-Pt (s-Pt) film on its CE under the same conditions. The significance of the cell with the composite film of GN/Nafion® lies in the fact that the expensive Pt is avoided in this case, thereby the cost of the pertinent DSSC was greatly reduced, even though its η (8.19%) is slightly smaller than that of the cell with the s-Pt film (8.89%).
AB - Carbon black (CB), multi-walled carbon nanotube (MWCNT), and graphene (GN) were examined as catalytic films on the counter electrodes (CEs) of dye-sensitized solar cells (DSSCs). GN exhibits the best performance among these materials for the corresponding cell. A composite film of GN/Nafion® was next used as the catalytic film on the CE of a DSSC. Nafion® is demonstrated to be an excellent dispersant for inhibiting the aggregation of GN. A solar-to-electricity conversion efficiency (η) of 8.19% was achieved for the DSSC sensitized by TBA(Ru[(4-carboxylic acid-4′-carboxylate-2,2′- bipyridine)(4,4′-bis(5-(hexylthio)-2,2′-bithien-5′-yl)-2, 2′-bipyridine)(NCS) 2]), i.e., CYC-B11 dye, which was synthesized by our group, after the optimization of the composition of GN/Nafion®, and an η of 8.89% was exhibited for the cell with a sputtered-Pt (s-Pt) film on its CE under the same conditions. The significance of the cell with the composite film of GN/Nafion® lies in the fact that the expensive Pt is avoided in this case, thereby the cost of the pertinent DSSC was greatly reduced, even though its η (8.19%) is slightly smaller than that of the cell with the s-Pt film (8.89%).
UR - http://www.scopus.com/inward/record.url?scp=84862771543&partnerID=8YFLogxK
U2 - 10.1016/j.carbon.2012.05.001
DO - 10.1016/j.carbon.2012.05.001
M3 - 文章
AN - SCOPUS:84862771543
SN - 0008-6223
VL - 50
SP - 4192
EP - 4202
JO - Carbon
JF - Carbon
IS - 11
ER -