Fibrous CdS/CdSe quantum dot co-sensitized solar cells based on ordered TiO2 nanotube arrays

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	Fibrous CdS/CdSe quantum dot co-sensitized solar cells based on ordered TiO2 nanotube arrays
	Huang, SQ ; Zhang, QX ; Huang, XM ; Guo, XZ ; Deng, MH ; Li, DM ; Luo, YH ; Shen, Q ; Toyoda, T ; Meng, QB
刊名	NANOTECHNOLOGY
	2010
卷号	21 期号:37
关键词	ELECTRODES
ISSN号	0957-4484
通讯作者	Meng, QB: Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100190, Peoples R China.
中文摘要	The structural and magnetic properties of the Nd2Co7-xFex compounds related to Rm+nT2m+5n series (R = rare earth, T = transition metal) were investigated by means of X-ray diffraction and magnetic measurements. The compounds crystallize in the Ce2Ni7-type structure with the space group P6(3)/mmc between x = 0.0 and 2.1. For higher Fe content the Nd-2(CoFe)(7) either coexists with the Nd(CoFe)(3) phase (x > 2.1) or decomposes to Nd(CoFe)(3) + Nd-2(CoFe)(17) (x > 2.4). The single phase Nd2Co7-xFe2 compounds exhibit two spin-reorientation transitions (SRT) for x < 1.5. The substitution of Fe for Co elevates both the spin-reorientation transition temperatures for x < 1.5 and finally leads to a single ferromagnetism to paramagnetism transition for x > 1.5. A magnetic phase diagram is constructed based on the magnetic measurements, thermogravimetry analysis under a low magnetic field and X-ray diffraction of magnetically aligned samples. The saturation magnetization of the compounds increases gradually first with the Fe content for x < 0.20, substantially for 0.20 < x < 1.5, and then decreases for x > 1.5, which can be elucidated by a depletion effect of d band electrons due to the substitution of Fe for Co and the spin-flipping due to an enhanced d band splitting. (C) 2010 Elsevier B.V. All rights reserved.
收录类别	SCI
资助信息	Natural Science Foundation of China [20725311, 20673141, 20703063, 20873178, 20721140647]; Ministry of Science and Technology of China [2006CB202606, 2006AA03Z341]; Chinese Academy of Sciences; Foundation of the Chinese Academy of Sciences [KJCX2-YW-W27, KGCX2-YW-363]; Japan Science and Technology Agency (JST)
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/38133]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Huang, SQ,Zhang, QX,Huang, XM,et al. Fibrous CdS/CdSe quantum dot co-sensitized solar cells based on ordered TiO2 nanotube arrays[J]. NANOTECHNOLOGY,2010,21(37).
APA	Huang, SQ.,Zhang, QX.,Huang, XM.,Guo, XZ.,Deng, MH.,...&Meng, QB.(2010).Fibrous CdS/CdSe quantum dot co-sensitized solar cells based on ordered TiO2 nanotube arrays.NANOTECHNOLOGY,21(37).
MLA	Huang, SQ,et al."Fibrous CdS/CdSe quantum dot co-sensitized solar cells based on ordered TiO2 nanotube arrays".NANOTECHNOLOGY 21.37(2010).