Efficiency Enhancement of Dye-Sensitized Solar Cell Using Pt Hollow Sphere Counter Electrode

被引：122
|
作者：
Dao, Van-Duong [1 ]
Kim, Seong-Hoon [1 ]
Choi, Ho-Suk [1 ]
Kim, Jae-Ha [2 ]
Park, Han-Oh [2 ]
Lee, Joong-Kee [3 ]
机构：
[1] Chungnam Natl Univ, Dept Chem Engn, Taejon 305764, South Korea
[2] Bioneer Co, Taejon 306220, South Korea
[3] Korea Inst Sci & Technol, Energy Storage Res Ctr, Seoul 130650, South Korea
来源：
JOURNAL OF PHYSICAL CHEMISTRY C | 2011年 / 115卷 / 51期
关键词：
REDUCTION; FABRICATION; IMPROVEMENT;
D O I：
10.1021/jp208295b
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
[Pt hollow spheres] electrodes and [Pt-sputtered + Pt hollow spheres] electrodes were fabricated on fluorine-doped tin oxide (FTO) glass as counter electrodes for dye-sensitized solar cells (DSCs), after sputtering platinum (Pt) on polystyrene microspheres and annealing them at 500 degrees C for 30 min. Electrochemical impedance measurement revealed that the charge transfer resistances of [Pt hollow spheres] electrodes and [Pt-sputtered + Pt hollow spheres] electrodes were 0.91 Omega cm(2) and 0.48 Omega cm(2), respectively, which were less than that of 1.28 Omega cm(2) obtained from [Pt-sputtered] electrode. Furthermore, the DSCs with [Pt hollow spheres] and [Pt-sputtered + Pt hollow spheres] electrodes exhibited high energy-conversion efficiencies of 8.20(+/- 0.10)% and 8.53(+/- 0.08)%, respectively, which were both higher than the 7.89(+/- 0.05)% efficiency of the DSC with [Pt-sputtered] electrodes.
引用
收藏
页码：25529 / 25534
页数：6
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