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Excitonic Circular Dichroism of Chiral Quantum Rods
Gao, Xiaoqing1; Zhang, Xiuwen2; Deng, Ke1; Han, Bing1; Zhao, Luyang3; Wu, Minghui4; Shi, Lin1; Lv, Jiawei1; Tang, Zhiyong1
2017-06-28
发表期刊JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
ISSN0002-7863
卷号139期号:25页码:8734-8739
摘要As an emerging type of optically active materials, chiral molecules-stabilized semiconductor quantum dots (QDs) have achieved extensive attention. Unfortunately, understanding of the optical characteristics of chiral QDs observed by circular dichroism (CD) spectroscopy remains a great challenge due to their rather weak signals. Herein; we successfully achieve much enhanced, CD responses from or D-cystein stabilized wurtzite CdSe quantum rods (QRs) thanks to their unique optical anisotropy. Furthermore, the optical, activity of CdSe QRs is explored to be improved and subsequently become stable with the geometrical aspect ratio (AR) increasing, and Such change matches well with alternation of the polarization factor of CdSe QRs. A non-degenerate Coupled-oscillator (NDCO) model is established to elucidate the optical activity of Chiral QRs, and the positive and negative natures of the CD peaks appearing at, the first exciton hand are clearly assigned to different transition polarization along 4p(z,Se) -> 5(sCd) and 4p((x,y),Se) -> 5s(Cd), respectively. This work opens the door toward comphrension and design of optically active semiconductor nanomaterials.
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1021/jacs.7b04224
收录类别SCI
语种英语
关键词[WOS]CDSE NANOCRYSTALS ; OPTICAL-ROTATION ; SEMICONDUCTOR NANOCRYSTALS ; ELECTRONIC STATES ; CDTE NANOCRYSTALS ; SYMMETRY RULES ; SOLAR-CELLS ; DOTS ; CYSTEINE ; GROWTH
WOS研究方向Chemistry
WOS类目Chemistry, Multidisciplinary
项目资助者National Key Basic Research Program of China(2014CB931801 ; National Natural Science Foundation of China(21475029 ; Frontier Science Key Project of the Chinese Academy of Sciences(QYZDJ-SSW-SLH038) ; Instrument Developing Project of the Chinese Academy of Sciences(YZ201311) ; CAS-CSIRO Cooperative Research Program(GJHZ1503) ; K. C. Wong Education Foundation ; "Strategic Priority Research Program" of Chinese Academy of Sciences(XDA09040100) ; National Key Research and Development Program of China(2016YFB0700700) ; 2016YFA0200700) ; 91427302)
WOS记录号WOS:000404809600052
引用统计
被引频次:14[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ipe.ac.cn/handle/122111/22792
专题生化工程国家重点实验室
作者单位1.Chinese Acad Sci, Ctr Excellence Nanosci, Natl Ctr Nanosci & Technol, Key Lab Nanosyst & Hierarch Fabricat, Beijing 100190, Peoples R China
2.Shenzhen Univ, Coll Elect Sci & Technol, Shenzhen Key Lab Micronano Photon Informat Techol, Shenzhen 518060, Guangdong, Peoples R China
3.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China
4.South Univ Sci & Technol China, Dept Phys, Shenzhen 518055, Guangdong, Peoples R China
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Gao, Xiaoqing,Zhang, Xiuwen,Deng, Ke,et al. Excitonic Circular Dichroism of Chiral Quantum Rods[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2017,139(25):8734-8739.
APA Gao, Xiaoqing.,Zhang, Xiuwen.,Deng, Ke.,Han, Bing.,Zhao, Luyang.,...&Tang, Zhiyong.(2017).Excitonic Circular Dichroism of Chiral Quantum Rods.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,139(25),8734-8739.
MLA Gao, Xiaoqing,et al."Excitonic Circular Dichroism of Chiral Quantum Rods".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 139.25(2017):8734-8739.
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