Carbon nanotubes-polyethylene oxide composite electrolyte for solid-state dye-sensitized solar cells

被引:69
作者
Akhtar, M. Shaheer [1 ,2 ,3 ]
Park, Jung-Geun [1 ,2 ]
Lee, Hyun-Cheol [1 ,2 ]
Lee, S. -K. [3 ]
Yang, O-Bong [1 ,2 ]
机构
[1] Chonbuk Natl Univ, Sch Semicond & Chem Engn, Jeonju 561756, Jeonbuk, South Korea
[2] Chonbuk Natl Univ, Solar Energy Res Ctr, Jeonju, Jeonbuk, South Korea
[3] Chonbuk Natl Univ, SPRC, Dept Semicond Sci & Technol, Jeonju 561756, Jeonbuk, South Korea
基金
新加坡国家研究基金会;
关键词
Carbon nanotubes; Polyethylene oxide; Composite; IPCE; Dye-sensitized solar cells; GEL ELECTROLYTES; POLY(ETHYLENE OXIDE); IODIDE; EFFICIENCY; TRANSPORT; SPECTROSCOPY; MORPHOLOGY; DIFFUSION; XPS;
D O I
10.1016/j.electacta.2009.11.062
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
Novel carbon nanotubes (CNTs)-polyethylene oxide (PEO) composite electrolyte for dye-sensitized solar cell (DSSC) was prepared and characterized for the first time. The strong bonding and interaction between CNTs and PEO in CNTs-PEO composites was observed by the characterization of X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM) and Raman spectra. The introduction of CNTs into PEO matrix significantly improved the electrolyte properties of DSSC such as roughness, amorphicity and ionic conductivity. The solid-state DSSC fabricated with the optimum composite electrolyte (added 1% CNTs in PEO matrix, 1%CNT-PEO) achieved maximum conversion efficiency of 3.5%, an open circuit voltage (V-OC) of 0.589 V, short circuit current density (J(SC)) of 10.64 mA/cm(2) and fill factor (FF) of 56%. The highest IPCE in the DSSC fabricated with 1%CNT-PEO electrolyte is ascribed to the improved ionic conductivity of composite electrolytes and enhanced interfacial contact between electrode and electrolyte. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2418 / 2423
页数:6
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