ZnO Nanocones with High-Index {10(1)over-bar1} Facets for Enhanced Energy Conversion Efficiency of Dye-Sensitized Solar Cells

	ZnO Nanocones with High-Index {10(1)over-bar1} Facets for Enhanced Energy Conversion Efficiency of Dye-Sensitized Solar Cells
	Chang J ; Ahmed R ; Wang HD ; Liu HW ; Lo RZ ; Wang P ; Waclawikt ER
刊名	journal of physical chemistry c
	2013
卷号	117 期号:27 页码:13836-13844
关键词	ELECTRON RECOMBINATION TIO2 PHOTOANODE NANOCRYSTALS FILMS NANOPARTICLES PERFORMANCE INJECTION SURFACES POLARITY
ISSN号	1932-7447
通讯作者	waclawikt er
中文摘要	zno is a promising photoanode material for dye-sensitized solar cells (dscs) due to its high bulk electron mobility and because different geometrical structures can easily be tailored. although various strategies have been taken to improve zno-based dsc efficiencies, their performances are still far lower than tio2 counterparts, mainly because low conductivity zn2+-dye complexes form on the zno surfaces. here, cone-shaped zno nanocrystals with exposed reactive o-terminated {10 (1) over tilde1} facets were synthesized and applied in dsc devices. the devices were compared with dscs made from more commonly used rod-shaped zno nanocrystals where {10 (1) over tilde0} facets are predominantly exposed. when cone-shaped zno nanocrystals were used, dscs sensitized with c218, n719, and d205 dyes universally displayed better power conversion efficiency, with the highest photoconversion efficiency of 4.36% observed with the c218 dye. first-principles calculations indicated that the enhanced dscs performance with zno nanocone photoanodes could be attributed to the strength of binding between the dye molecules and reactive o-terminated {10 (1) over tilde1} zno facets and that more effective use of dye molecules occurred due to a significantly less dye aggregation on these zno surfaces compared to other zno facets.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000321883600009
公开日期	2014-04-15
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/49740]
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	Chang J,Ahmed R,Wang HD,et al. ZnO Nanocones with High-Index {10(1)over-bar1} Facets for Enhanced Energy Conversion Efficiency of Dye-Sensitized Solar Cells[J]. journal of physical chemistry c,2013,117(27):13836-13844.
APA	Chang J.,Ahmed R.,Wang HD.,Liu HW.,Lo RZ.,...&Waclawikt ER.(2013).ZnO Nanocones with High-Index {10(1)over-bar1} Facets for Enhanced Energy Conversion Efficiency of Dye-Sensitized Solar Cells.journal of physical chemistry c,117(27),13836-13844.
MLA	Chang J,et al."ZnO Nanocones with High-Index {10(1)over-bar1} Facets for Enhanced Energy Conversion Efficiency of Dye-Sensitized Solar Cells".journal of physical chemistry c 117.27(2013):13836-13844.