High-Efficiency Dye-Sensitized Solar Cells: The Influence of Lithium Ions on Exciton Dissociation, Charge Recombination, and Surface States

doi:10.1021/nn101384e

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	High-Efficiency Dye-Sensitized Solar Cells: The Influence of Lithium Ions on Exciton Dissociation, Charge Recombination, and Surface States
	Yu, Qingjiang; Wang, Yinghui; Yi, Zhihui; Zu, Ningning; Zhang, Jing; Zhang, Min; Wang, Peng
刊名	ACS NANO
	2010-10-01
卷号	4 期号:10 页码:6032-6038
关键词	Solar Cells Exciton Dissociation Charge Recombination Surface States Transient Absorption Spectroscopy Impedance Spectroscopy
ISSN号	1936-0851
DOI	10.1021/nn101384e
英文摘要	We present a time-saving staining protocol based upon the low-toxicity and nonvolatile solvent dimethyl sulfoxide for a high-efficiency dye-sensitized solar cell, which is very critical for the roll-to-roll flexible cell production. Power conversion efficiencies of 11.7-12.1% were achieved under AM1.5G simulated sunlights. The intrinsic roles of lithium cations on efficiency enhancement were scrutinized by measuring transient absorption and electrical impedance spectroscopies. Our studies have revealed that lithium ions can enhance exciton dissociation at the energy-offset dye/titania interface effectively. Charge collection is not found to be a crucial current loss channel in our high-efficiency dye-sensitized solar cell.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000283453700072
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/69075]
专题	中国科学院化学研究所
通讯作者	Wang, Peng
作者单位	Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
推荐引用方式 GB/T 7714	Yu, Qingjiang,Wang, Yinghui,Yi, Zhihui,et al. High-Efficiency Dye-Sensitized Solar Cells: The Influence of Lithium Ions on Exciton Dissociation, Charge Recombination, and Surface States[J]. ACS NANO,2010,4(10):6032-6038.
APA	Yu, Qingjiang.,Wang, Yinghui.,Yi, Zhihui.,Zu, Ningning.,Zhang, Jing.,...&Wang, Peng.(2010).High-Efficiency Dye-Sensitized Solar Cells: The Influence of Lithium Ions on Exciton Dissociation, Charge Recombination, and Surface States.ACS NANO,4(10),6032-6038.
MLA	Yu, Qingjiang,et al."High-Efficiency Dye-Sensitized Solar Cells: The Influence of Lithium Ions on Exciton Dissociation, Charge Recombination, and Surface States".ACS NANO 4.10(2010):6032-6038.