One-Step Synthesis of High-Quality Gradient CdHgTe Nanocrystals: A Prerequisite to Prepare CdHgTe-Polymer Bulk Composites with Intense Near-Infrared Photoluminescence

doi:10.1021/cm8018296

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	One-Step Synthesis of High-Quality Gradient CdHgTe Nanocrystals: A Prerequisite to Prepare CdHgTe-Polymer Bulk Composites with Intense Near-Infrared Photoluminescence
	Sun, Haizhu 1,2; Zhang, Hao 1; Ju, Jie 1; Zhang, Junhu 1; Qian, Gang 3; Wang, Chunlei 1; Yang, Bai 1; Wang, Zhi Yuan 4
刊名	CHEMISTRY OF MATERIALS
	2008-11-11
卷号	20 期号:21 页码:6764-6769
ISSN号	0897-4756
DOI	10.1021/cm8018296
英文摘要	We have demonstrated an efficient method to prepare high-quality CdHgTe alloyed nanocrystals (NCs) by making use of a large difference in the solubility between CdTe and HgTe in aqueous medium. The resultant NCs show a gradient quasi "core/shell" structure in which the "core" is rich in HgTe and the "shell" is rich in CdTe. This unique structure makes the photo I umi nescence (PL) quantum yield (QY) of CdHgTe NCs up to 45% and remarkably improves their stability. The excellent stability of CdHgTe NCs allows for the successful preparation of NC-polymer bulk composites with intense PL in the near-infrared spectral region (tunable from 1100 to 1400 nm) upon excitation at 550 nm. Not only is the difficulty of preparing the CdHgTe NC-polymer bulk composites overcome, but also the composites show excellent thermal and luminescent stabilities, which is of importance for their future applications.
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000260658100031
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/63401]
专题	中国科学院化学研究所
通讯作者	Yang, Bai
作者单位	1.Jilin Univ, Coll Chem, State Key Lab Supramol Struct & Mat, Changchun 130012, Peoples R China 2.NE Normal Univ, Coll Chem, Changchun 130024, Peoples R China 3.Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China 4.Carleton Univ, Dept Chem, Ottawa, ON K1S 5B6, Canada
推荐引用方式 GB/T 7714	Sun, Haizhu,Zhang, Hao,Ju, Jie,et al. One-Step Synthesis of High-Quality Gradient CdHgTe Nanocrystals: A Prerequisite to Prepare CdHgTe-Polymer Bulk Composites with Intense Near-Infrared Photoluminescence[J]. CHEMISTRY OF MATERIALS,2008,20(21):6764-6769.
APA	Sun, Haizhu.,Zhang, Hao.,Ju, Jie.,Zhang, Junhu.,Qian, Gang.,...&Wang, Zhi Yuan.(2008).One-Step Synthesis of High-Quality Gradient CdHgTe Nanocrystals: A Prerequisite to Prepare CdHgTe-Polymer Bulk Composites with Intense Near-Infrared Photoluminescence.CHEMISTRY OF MATERIALS,20(21),6764-6769.
MLA	Sun, Haizhu,et al."One-Step Synthesis of High-Quality Gradient CdHgTe Nanocrystals: A Prerequisite to Prepare CdHgTe-Polymer Bulk Composites with Intense Near-Infrared Photoluminescence".CHEMISTRY OF MATERIALS 20.21(2008):6764-6769.