Pt-NP-MWNT nanohybrid as a robust and low-cost counter electrode material for dye-sensitized solar cells

被引：43

作者：

Dao, Van-Duong ^{[1
]}

Ko, Seung Hyeon ^{[2
,3
]}

Choi, Ho-Suk ^{[1
,4
]}

Lee, Joong-Kee ^{[4
]}

机构：

[1] Chungnam Natl Univ, Dept Chem Engn, Taejon 305764, South Korea

[2] Natl Inst Stand & Technol, Ctr Nanoscale Sci & Technol, Gaithersburg, MD 20899 USA

[3] Univ Maryland, Inst Res Elect & Appl Phys, College Pk, MD 20742 USA

[4] Korea Inst Sci & Technol, Energy Storage Res Ctr, Seoul 130650, South Korea

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 28期

基金：

新加坡国家研究基金会;

关键词：

CARBON NANOTUBES; PLATINUM NANOPARTICLES; EFFICIENCY; GOLD;

D O I：

10.1039/c2jm31332d

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-NPs hybridized inside and outside multi-walled carbon nanotubes (MWNTs) were successfully synthesized using a liquid plasma system with 1-butyl-3-methylimidazolium bis(trifluoromethylsulfonyl) imide under atmospheric pressure. The Pt-NPs with a size of 3-4 nm were stably and uniformly hybridized on both inner and outer surfaces of the MWNTs. The nanohybrid materials were applied to the counter electrode of dye-sensitized solar cells (DSCs). Electrochemical impedance measurement of DSCs revealed that the charge-transfer resistance of a MWNT-Pt nanohybrid-coated electrode was less than that of Pt-sputtered and MWNT-coated electrodes. Due to the low charge-transfer resistance, the DSC exhibited fairly improved energy conversion efficiency compared to the DSCs equipped with Pt-sputtered and MWNT-coated counter electrodes.

引用

页码：14023 / 14029

页数：7

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