Trap States Comparison of Mesoporous TiO2 Photoanodes with Different Particle Sizes

doi:10.1166/jnn.2016.12061

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 应用技术研究所

	Trap States Comparison of Mesoporous TiO2 Photoanodes with Different Particle Sizes
	Ma, Yanmei 1; Hu, Linhua 1; Mo, Li'e 1; Xi, Xiaowang 2; Dai, Songyuan 2,3
刊名	JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
	2016-06-01
卷号	16 期号:6 页码:5787-5790
关键词	Trap State Tio2 Photoanode Nanoparticle Chemical Capacitance
DOI	10.1166/jnn.2016.12061
文献子类	Article
英文摘要	For the dye-sensitized solar cells (DSSCs), trap states exist in the TiO2 based photoanode and play important role on the dynamic process of charge transport and recombination in the DSSCs. Generally, trap states mainly result from impurities, interface adsorption of ions, the breakdown of the lattice periodicity in the semiconductor, dangling bonds and/or the rearrangement of surface atoms. In this paper, we compare trap states of different nanoparticles based TiO2 photoanode films. The result of X-ray photoelectron spectroscopy (XPS) indicates that Ti3+ and the content of oxygen vacancies in the porous films decrease with the increase of particle sizes. Furthermore, to confirm the difference of trap states in these photoanodes, the measurements of cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) were employed. It is found that compared with the larger particle size, the TiO2 photoanode films based on the smaller nanoparticles possess more trap states. This research provides a useful description of microscopic mechanism for the effect of porous films with different sizes on cell photovoltaic performances.
WOS关键词	SENSITIZED SOLAR-CELLS ; ELECTRON-TRANSPORT ; SURFACE-STATE ; EFFICIENCY ; RECOMBINATION ; SEMICONDUCTOR ; FILM ; PERFORMANCE ; BEADS
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
WOS记录号	WOS:000386123900052
资助机构	National Natural Science Foundation of China(21173228 ; National Natural Science Foundation of China(21173228 ; National Natural Science Foundation of China(21173228 ; National Natural Science Foundation of China(21173228 ; National High Technology Research and Development Program of China(2015AA050602) ; National High Technology Research and Development Program of China(2015AA050602) ; National High Technology Research and Development Program of China(2015AA050602) ; National High Technology Research and Development Program of China(2015AA050602) ; China Postdoctoral Science Foundation(2014M551825) ; China Postdoctoral Science Foundation(2014M551825) ; China Postdoctoral Science Foundation(2014M551825) ; China Postdoctoral Science Foundation(2014M551825) ; 61204075) ; 61204075) ; 61204075) ; 61204075) ; National Natural Science Foundation of China(21173228 ; National Natural Science Foundation of China(21173228 ; National Natural Science Foundation of China(21173228 ; National Natural Science Foundation of China(21173228 ; National High Technology Research and Development Program of China(2015AA050602) ; National High Technology Research and Development Program of China(2015AA050602) ; National High Technology Research and Development Program of China(2015AA050602) ; National High Technology Research and Development Program of China(2015AA050602) ; China Postdoctoral Science Foundation(2014M551825) ; China Postdoctoral Science Foundation(2014M551825) ; China Postdoctoral Science Foundation(2014M551825) ; China Postdoctoral Science Foundation(2014M551825) ; 61204075) ; 61204075) ; 61204075) ; 61204075)
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/30152]
专题	合肥物质科学研究院_应用技术研究所
作者单位	1.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Appl Technol, Key Lab Novel Thin Film Solar Cells, Hefei 230031, Peoples R China 2.Wuxi Inst Technol, Coll Mech & Elect Technol, Wuxi 214121, Jiangsu, Peoples R China 3.North China Elect Power Univ, State Key Lab Alternate Elect Power Syst Renewabl, Beijing 102206, Peoples R China
推荐引用方式 GB/T 7714	Ma, Yanmei,Hu, Linhua,Mo, Li'e,et al. Trap States Comparison of Mesoporous TiO2 Photoanodes with Different Particle Sizes[J]. JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,2016,16(6):5787-5790.
APA	Ma, Yanmei,Hu, Linhua,Mo, Li'e,Xi, Xiaowang,&Dai, Songyuan.(2016).Trap States Comparison of Mesoporous TiO2 Photoanodes with Different Particle Sizes.JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY,16(6),5787-5790.
MLA	Ma, Yanmei,et al."Trap States Comparison of Mesoporous TiO2 Photoanodes with Different Particle Sizes".JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY 16.6(2016):5787-5790.