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

被引：124

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

页码：25529 / 25534

页数：6

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