Synthesis of two morphologies FeS2 and its application for dye-sensitized solar cells

Abstract

Abstract: By comparing the catalytic activity of two morphology FeS2 particles and its performance in dye-sensitized solar cells(DSSCs), FeS2 particles with higher performance are selected. Cubic and spherical high purity FeS2 are synthesized by hydrothermal method and hot-injection method. FeS2 counter electrodes(CEs) are prepared and assembled on DSSC. By measuring the photoelectric conversion efficiency of battery and catalytic characteristic of CEs, it is found that the spherical FeS2 particles show higher catalytic activity, and the battery based on spherical FeS2 CEs present a higher photoelectric conversion efficiency. Under simulated solar light irradiation with intensity of 100 mW•cm−2 (AM 1.5), the DSSCs based on the cube and sphere high purity FeS2 CEs achieve a photoelectric conversion efficiency of 4.55% and 5.69%, respectively.

Key words: materials, dye-sensitized solar cell, hydrothermal method, hot-injection method, counter electrode, FeS2

SONG Chao1, DONG Weiwei1,2, WANG Shimao1, SHAO Jingzhen1, FANG Xiaodong1,2*. Synthesis of two morphologies FeS2 and its application for dye-sensitized solar cells[J]. Chinese Journal of Quantum Electronics.

References

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