Increase of power conversion efficiency in dye-sensitized solar cells through ferroelectric substrate induced charge transport enhancement

	Increase of power conversion efficiency in dye-sensitized solar cells through ferroelectric substrate induced charge transport enhancement
	Tang, Xiao; Liu, Xiaoyan; Zhang, Qifeng; Li, Jiangyu; Valanoor, Nagarajan; Cao, Guozhong
刊名	SCIENTIFIC REPORTS
	2018
文献子类	期刊论文
英文摘要	Ferroelectric functionalized dye-sensitized solar cells were fabricated by using a positively-poled LiNbO3 substrate coated with ITO (ITO-LiNbO3) as a collector electrode and demonstrated enhanced power conversion efficiency. Surface potential properties of TiO2 nanoparticle film coated on the ITO-LiNbO3 (TiO2/ITO-LiNbO3) examined by Kelvin probe force microscopy (KPFM) confirmed that a large electric field (a few 10 V/mu m) generated from LiNbO3 can penetrate through the ITO layer and is applied to TiO2 film. This polarization-induced electric field leads to an increased photocurrent density by attracting and promoting electrons to direct transport through the mesoporous TiO2 network toward the collector electrode and a decreased chargerecombination by facilitating electrons to pass through fewer boundaries of nanoparticles, resulting in high power conversion efficiency. The powerconversion efficiency was enhanced by more than 40% in comparison with that without polarization-induced electric field. Incorporating functional ferroelectrics into photovoltaic cells would be a good strategy in improving photovoltaic performance and is applicable to other types of photovoltaic devices, such as perovskite solar cells.
语种	英语
内容类型	期刊论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/14892]
专题	深圳先进技术研究院_其他
推荐引用方式 GB/T 7714	Tang, Xiao,Liu, Xiaoyan,Zhang, Qifeng,et al. Increase of power conversion efficiency in dye-sensitized solar cells through ferroelectric substrate induced charge transport enhancement[J]. SCIENTIFIC REPORTS,2018.
APA	Tang, Xiao,Liu, Xiaoyan,Zhang, Qifeng,Li, Jiangyu,Valanoor, Nagarajan,&Cao, Guozhong.(2018).Increase of power conversion efficiency in dye-sensitized solar cells through ferroelectric substrate induced charge transport enhancement.SCIENTIFIC REPORTS.
MLA	Tang, Xiao,et al."Increase of power conversion efficiency in dye-sensitized solar cells through ferroelectric substrate induced charge transport enhancement".SCIENTIFIC REPORTS (2018).