Aspect ratio tuned red-shift of photoluminescence emission of PbSe nanorods investigated by electron holography

doi:10.1016/j.jcis.2017.01.041

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院强磁场科学中心

	Aspect ratio tuned red-shift of photoluminescence emission of PbSe nanorods investigated by electron holography
	Li, Ying 1,3; Du, Haifeng 2; Zhang, Jie 1; Liu, Zhengwang 1; Tian, Mingliang 2; Che, Renchao 1
刊名	JOURNAL OF COLLOID AND INTERFACE SCIENCE
	2017-05-01
卷号	493 期号:无页码:385-392
关键词	Pbse Nanorods Photoluminescence Emission Aspect Ratio Off-axis Electron Holography Chloride Ions
DOI	10.1016/j.jcis.2017.01.041
文献子类	Article
英文摘要	The physical properties of nanometer scale semiconductors are known to be sensitively influenced by their aspect ratios, but the intrinsic mechanisms still remain unclear. Shape-controlled anisotropic PbSe nanorods were obtained by means of the addition of MnCl2, and the aspect ratio of the nanorods can be continuously tuned from 1 to 10 by simply modulating the amount of chloride ions. It was demonstrated that an optimized concentration of Cr- anions is about 0.04 mmol, which controls the competition between thermodynamics and kinetics mechanisms. The emission peaks of the infrared absorbance and photoluminescence spectra were significantly tuned from 1664 nm to 1840 nm and from 1459 nm to 1938 nm only by the aspect ratios, respectively. A strong electric dipole phenomenon localized onside the surface of PbSe nanorods terminated by Pb2+ charge was found by using high-spatial-resolution off-axis electron holography, which was furthermore evidenced by the quantitative analysis of the mean inner potential and the surfaces charge. The charge intensity depended on the aspect ratio of PbSe nanorods. The results provide clear evidence that the energy gap interval reduces as a result of the increasing of conduction charge amounts. A novel strategy to facilely shift the peak position of absorbance and photoluminescence emission was therefore proposed. (C) 2017 Published by Elsevier Inc.
WOS关键词	MULTIPLE EXCITON GENERATION ; QUANTUM DOTS ; CDSE NANOCRYSTALS ; SHAPE CONTROL ; MONODISPERSE ; ATTACHMENT ; GROWTH ; NANOSTRUCTURES ; SUPERLATTICES ; ABSORPTION
WOS研究方向	Chemistry
语种	英语
WOS记录号	WOS:000394632600044
资助机构	Ministry of Science and Technology of China (973 Project)(2013CB932901) ; Ministry of Science and Technology of China (973 Project)(2013CB932901) ; Ministry of Science and Technology of China (973 Project)(2013CB932901) ; Ministry of Science and Technology of China (973 Project)(2013CB932901) ; Ministry of Science and Technology of China (973 Project)(2013CB932901) ; Ministry of Science and Technology of China (973 Project)(2013CB932901) ; Ministry of Science and Technology of China (973 Project)(2013CB932901) ; Ministry of Science and Technology of China (973 Project)(2013CB932901) ; National Natural Science Foundation of China(51672050 ; National Natural Science Foundation of China(51672050 ; National Natural Science Foundation of China(51672050 ; National Natural Science Foundation of China(51672050 ; National Natural Science Foundation of China(51672050 ; National Natural Science Foundation of China(51672050 ; National Natural Science Foundation of China(51672050 ; National Natural Science Foundation of China(51672050 ; NASF(U1330118) ; NASF(U1330118) ; NASF(U1330118) ; NASF(U1330118) ; NASF(U1330118) ; NASF(U1330118) ; NASF(U1330118) ; NASF(U1330118) ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; "Shu Guang" project of Shanghai Municipal Education Commission ; "Shu Guang" project of Shanghai Municipal Education Commission ; "Shu Guang" project of Shanghai Municipal Education Commission ; "Shu Guang" project of Shanghai Municipal Education Commission ; "Shu Guang" project of Shanghai Municipal Education Commission ; "Shu Guang" project of Shanghai Municipal Education Commission ; "Shu Guang" project of Shanghai Municipal Education Commission ; "Shu Guang" project of Shanghai Municipal Education Commission ; Shanghai Education Development Foundation(09SG01) ; Shanghai Education Development Foundation(09SG01) ; Shanghai Education Development Foundation(09SG01) ; Shanghai Education Development Foundation(09SG01) ; Shanghai Education Development Foundation(09SG01) ; Shanghai Education Development Foundation(09SG01) ; Shanghai Education Development Foundation(09SG01) ; Shanghai Education Development Foundation(09SG01) ; 11274066) ; 11274066) ; 11274066) ; 11274066) ; 11274066) ; 11274066) ; 11274066) ; 11274066) ; Ministry of Science and Technology of China (973 Project)(2013CB932901) ; Ministry of Science and Technology of China (973 Project)(2013CB932901) ; Ministry of Science and Technology of China (973 Project)(2013CB932901) ; Ministry of Science and Technology of China (973 Project)(2013CB932901) ; Ministry of Science and Technology of China (973 Project)(2013CB932901) ; Ministry of Science and Technology of China (973 Project)(2013CB932901) ; Ministry of Science and Technology of China (973 Project)(2013CB932901) ; Ministry of Science and Technology of China (973 Project)(2013CB932901) ; National Natural Science Foundation of China(51672050 ; National Natural Science Foundation of China(51672050 ; National Natural Science Foundation of China(51672050 ; National Natural Science Foundation of China(51672050 ; National Natural Science Foundation of China(51672050 ; National Natural Science Foundation of China(51672050 ; National Natural Science Foundation of China(51672050 ; National Natural Science Foundation of China(51672050 ; NASF(U1330118) ; NASF(U1330118) ; NASF(U1330118) ; NASF(U1330118) ; NASF(U1330118) ; NASF(U1330118) ; NASF(U1330118) ; NASF(U1330118) ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; Shanghai Pujiang Program ; "Shu Guang" project of Shanghai Municipal Education Commission ; "Shu Guang" project of Shanghai Municipal Education Commission ; "Shu Guang" project of Shanghai Municipal Education Commission ; "Shu Guang" project of Shanghai Municipal Education Commission ; "Shu Guang" project of Shanghai Municipal Education Commission ; "Shu Guang" project of Shanghai Municipal Education Commission ; "Shu Guang" project of Shanghai Municipal Education Commission ; "Shu Guang" project of Shanghai Municipal Education Commission ; Shanghai Education Development Foundation(09SG01) ; Shanghai Education Development Foundation(09SG01) ; Shanghai Education Development Foundation(09SG01) ; Shanghai Education Development Foundation(09SG01) ; Shanghai Education Development Foundation(09SG01) ; Shanghai Education Development Foundation(09SG01) ; Shanghai Education Development Foundation(09SG01) ; Shanghai Education Development Foundation(09SG01) ; 11274066) ; 11274066) ; 11274066) ; 11274066) ; 11274066) ; 11274066) ; 11274066) ; 11274066)
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/32905]
专题	合肥物质科学研究院_中科院强磁场科学中心
作者单位	1.Fudan Univ, Collaborat Innovat Ctr Chem Energy Mat, Dept Mat Sci, Adv Mat Lab, Shanghai 200438, Peoples R China 2.Chinese Acad Sci, High Field Magnet Lab, Hefei 230031, Anhui, Peoples R China 3.Shanghai Inst Technol, Sch Mat Sci & Engn, Shanghai 201418, Peoples R China
推荐引用方式 GB/T 7714	Li, Ying,Du, Haifeng,Zhang, Jie,et al. Aspect ratio tuned red-shift of photoluminescence emission of PbSe nanorods investigated by electron holography[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE,2017,493(无):385-392.
APA	Li, Ying,Du, Haifeng,Zhang, Jie,Liu, Zhengwang,Tian, Mingliang,&Che, Renchao.(2017).Aspect ratio tuned red-shift of photoluminescence emission of PbSe nanorods investigated by electron holography.JOURNAL OF COLLOID AND INTERFACE SCIENCE,493(无),385-392.
MLA	Li, Ying,et al."Aspect ratio tuned red-shift of photoluminescence emission of PbSe nanorods investigated by electron holography".JOURNAL OF COLLOID AND INTERFACE SCIENCE 493.无(2017):385-392.