Impedance analysis of nanocarbon DSSC electrodes

被引:63
作者
Gagliardi, S. [1 ]
Giorgi, L. [1 ]
Giorgi, R. [1 ]
Lisi, N. [1 ]
Makris, Th. Dikonimos [1 ]
Salernitano, E. [1 ]
Rufoloni, A. [2 ]
机构
[1] ENEA CR Casaccia, Dept Phys Technol & New Mat, I-000123 Rome, Italy
[2] ENEA CR Casaccia, Dept Nucl Fus & Fiss & Related Technol, I-00044 Rome, Italy
关键词
DSSC; Carbon nanostructure; Impedance spectroscopy; SENSITIZED SOLAR-CELLS; COUNTER ELECTRODES; CARBON NANOTUBE;
D O I
10.1016/j.spmi.2009.02.002
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Carbon nanoparticles and multiwall carbon nanotubes were deposited on an Optically Transparent Electrode (OTE) for application in Dye Sensitised Solar Cells (DSSCs) as counter electrode materials. Electrochemical Impedance Spectroscopy (EIS) was used to evaluate the behaviour in a I(3)(-)/I(-) electrolyte solution. Results were compared to commercial Pt catalysed OTE and polycrystalline graphite. Multiwalled carbon nanotubes show low series resistance and low charge transfer resistance promising an improved fill factor (and efficiency) in DSSCs assembled with such materials as counter electrodes. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:205 / 208
页数:4
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