Influence of Solvent of in situ Electro-Polymerization on Catalytic Performance of PEDOT Counter Electrode
- 作者: Ma J.1, Yuan S.1, Lu H.1, Li H.2
- 
							隶属关系: 
							- School of Material Science and Engineering
- Key Laboratory of Ningxia for Photovoltaic Materials
 
- 期: 卷 54, 编号 11 (2018)
- 页面: 817-824
- 栏目: Article
- URL: https://journals.rcsi.science/1023-1935/article/view/189538
- DOI: https://doi.org/10.1134/S102319351811006X
- ID: 189538
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In this work, we discuss the catalytic performance of poly(3,4-ethylenedioxythiophene) (PEDOT) counter electrode prepared via electro-polymerization (EP) method in Na2SO4 aqueous solution and [BMIM]BF4 ionic liquid for dye-sensitized solar cells (DSSCs), respectively. The electrochemical and photoelectric conversion tests result show that [BMIM]BF4 is more beneficial to dissolve EDOT and thereby promote the growth of 3D PEDOT which can increase the catalytic activity. Furthermore, the introduced graphite (Gr) buffer layer can improve the roughness of PEDOT and F-doped tin oxide substrate (FTO), However, in the [BMIM]BF4 ionic liquid, the overgrowth PEDOT on Gr will reduced the properties of the counter electrode (CE) compare to CE without Gr buffer layer. Further, by using the Gr/ PEDOTIL counter electrode, a 4.89% of photoelectric conversion efficiency(PCE, η) was obtained which was up to 82.3% of DSSC–Pt (η = 5.94%) at the same condition. Meanwhile, the electro-catalytic activity of FTO/PEDOTIL and FTO/Gr/PEDOTIL electrode are demonstrated by scanning electrochemical microscopy (SECM).
作者简介
Jinfu Ma
School of Material Science and Engineering
							编辑信件的主要联系方式.
							Email: jinfu_ma@163.com
				                					                																			                												                	中国, 							Yinchuan, 750021						
Shenghua Yuan
School of Material Science and Engineering
														Email: jinfu_ma@163.com
				                					                																			                												                	中国, 							Yinchuan, 750021						
Hui Lu
School of Material Science and Engineering
														Email: jinfu_ma@163.com
				                					                																			                												                	中国, 							Yinchuan, 750021						
Haibo Li
Key Laboratory of Ningxia for Photovoltaic Materials
														Email: jinfu_ma@163.com
				                					                																			                												                	中国, 							Yinchuan, 750021						
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