High-performance phosphide/carbon counter electrode for both iodide and organic redox couples in dye-sensitized solar cells

Mingxing Wu; Jin Bai; Yudi Wang; Anjie Wang; Xiao Lin; Liang Wang; Yihua Shen; Zeqing Wang; Anders Hagfeldt; Tingli Ma

doi:10.1039/C2JM30832K

High-performance phosphide/carbon counter electrode for both iodide and organic redox couples in dye-sensitized solar cells†

Mingxing Wu,^a Jin Bai,^a Yudi Wang,^a Anjie Wang,^a Xiao Lin,^a Liang Wang,^a Yihua Shen,^a Zeqing Wang,^a Anders Hagfeldt^b and Tingli Ma*^a

Author affiliations

* Corresponding authors

^a School of Chemical Engineering, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, China

^b Department of Physical and Analytical Chemistry, Uppsala University, Uppsala, Sweden

Abstract

In the present study, molybdenum phosphide (MoP), nickel phosphide (Ni₅P₄), and carbon-supported Ni₅P₄ (Ni₅P₄/C) were proposed for use as counter electrode (CE) catalysts in dye-sensitized solar cells (DSCs) for the regeneration of both the conventional I₃⁻/I⁻ redox couple and a new organic T₂/T⁻ redox couple. For the I₃⁻/I⁻ redox couple, the DSCs using MoP and Ni₅P₄ CE yielded a power conversion efficiency (PCE) of 4.92 and 5.71%, and the DSC using Ni₅P₄/C showed a high PCE of 7.54%, which was close to that of the DSC using Pt CE (7.76%). For the T₂/T⁻ redox couple, Ni₅P₄/C performed much better than Pt and the DSC using Ni₅P₄/C CE showed a PCE of 4.75%, much higher than the photovoltaic performance of the DSC using Pt CE (3.38%).

Journal of Materials Chemistry

High-performance phosphide/carbon counter electrode for both iodide and organic redox couples in dye-sensitized solar cells†

Abstract

Supplementary files

Article information

Download Citation

Permissions

High-performance phosphide/carbon counter electrode for both iodide and organic redox couples in dye-sensitized solar cells

Search articles by author

Spotlight

Advertisements