Low-cost counter electrodes based on nitrogen-doped porous carbon nanorods for dye-sensitized solar cells

作者：Wang, Guiqiang^*; Yan, Chao; Hou, Shuo; Zhang, Wei

来源：Materials Science in Semiconductor Processing, 2017, 63: 190-195.

DOI：10.1016/j.mssp.2017.02.018

• Nitrogen doping
• Porous carbon nanorods
• Counter electrode
• Dye-sensitized solar cells

Nitrogen-doped porous carbon nanorods (N-PCNRs) with high accessible surface area are prepared by carbonization of polyaniline (PANI) nanorods and subsequent chemical activation, and explored as the counter electrode in dye-sensitized solar cells (DSCs). SEM and TEM images demonstrate that the nanorod morphology of PANI is preserved after pre-carbonization and chemical activation treatment. The unique combination of the porosity with high accessible surface area, nitrogen doping, and nanorod structure endows the N-PCNR electrode with an excellent electrocatalytic activity for the I-3(-) reduction, which is illuminated by the electrochemical measurements. Under simulated AM 1.5 illumination (100 mW cm(-2)), the DSC based on N-PCNR counter electrode achieves a conversion efficiency of 7.01%, which is nearly close to that of the cell based on Pt counter electrode (7.25%).

• 出版日期2017-6
• 单位渤海大学