Anion Effects in Organic Dye-Sensitized Mesoscopic Solar Cells with Ionic Liquid Electrolytes: Tetracyanoborate vs Dicyanamide

	Anion Effects in Organic Dye-Sensitized Mesoscopic Solar Cells with Ionic Liquid Electrolytes: Tetracyanoborate vs Dicyanamide
	Zhou DF ; Bai Y ; Zhang J ; Cai N ; Su M ; Wang YH ; Zhang M ; Wang P
刊名	journal of physical chemistry c
	2011
卷号	115 期号:3 页码:816-822
关键词	CHARGE RECOMBINATION KINETICS TEMPERATURE MOLTEN-SALTS TITANIUM-DIOXIDE FILMS HIGH-EFFICIENCY IMPEDANCE TIO2 PERFORMANCE DENSITY ELECTRODES DIFFUSION
ISSN号	1932-7447
通讯作者	wang p
中文摘要	we compare the impacts of tetracyanoborate and dicyanamide anions in solvent-free ionic liquid electrolytes upon the optoelectronic features of dye-sensitized solar cells based on an organic push-pull chromophore. with respect to dicyanamide, tetracyanoborate confers a bathochromic and higher photocurrent response upon a dye-coated mesoporous titania film. numerical simulations on electrical impedance spectroscopies disclose that tetracyanoborate anion s evoke a downward displacement of the conduction-band edge of an electrolyte-sinking nanocrystalline film in comparison with dicyanamide, generating a more favorable energy-offset at the titania/dye interface and therefore a better exciton dissociation yield, as proved via the transient emission measurements. an effective recombination reaction rate constant u(0k) is used to depict the charge-transfer behavior at the titania/electrolyte interface in dye-sensitized solar cells. the negative impact of an about 4 times larger u(0k) of the dicyanamide cell is overwhelmed by the noticeably higher conduction band edge, leading to the experimentally observed anion-dependent open-circuit photovoltage.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000286306700031
公开日期	2012-06-11
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/44866]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Zhou DF,Bai Y,Zhang J,et al. Anion Effects in Organic Dye-Sensitized Mesoscopic Solar Cells with Ionic Liquid Electrolytes: Tetracyanoborate vs Dicyanamide[J]. journal of physical chemistry c,2011,115(3):816-822.
APA	Zhou DF.,Bai Y.,Zhang J.,Cai N.,Su M.,...&Wang P.(2011).Anion Effects in Organic Dye-Sensitized Mesoscopic Solar Cells with Ionic Liquid Electrolytes: Tetracyanoborate vs Dicyanamide.journal of physical chemistry c,115(3),816-822.
MLA	Zhou DF,et al."Anion Effects in Organic Dye-Sensitized Mesoscopic Solar Cells with Ionic Liquid Electrolytes: Tetracyanoborate vs Dicyanamide".journal of physical chemistry c 115.3(2011):816-822.