Size dependence of tetrahedral bond lengths in CdSe nanocrystals

被引：17
|
作者：
Wu, Pin-Jiun
Stetsko, Yuri P.
Tsuei, Ku-Ding
Dronyak, Roman
Liang, Keng S. [1 ]
机构：
[1] Natl Synchrotron Radiat Res Ctr, Hsinchu 300, Taiwan
[2] Natl Chiao Tung Univ, Dept Electrophys, Hsinchu 300, Taiwan
来源：
APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 16期
关键词：
D O I：
10.1063/1.2727559
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The structural characteristics of organically passivated CdSe nanocrystals (NCs) were investigated with x-ray diffraction and extended x-ray absorption fine structure. As the NC size decreases, the axial bond length R-(1) for an atomic tetrahedron extends but the equatorial bond length R-(2) contracts, with a similar tendency of distortion for the lattice parameters of the wurtzite structure. The authors suggest that the observed hexagonal distortion is attributed to the surface stress of the NCs related to the organic passivation effect and the relaxation of atomic positions at the stacking fault interface. (c) 2007 American Institute of Physics.
引用
收藏
页数：3
相关论文
共 50 条
  • [41] Self-Assembly of Tetrahedral CdSe Nanocrystals: Effective "Patchiness" via Anisotropic Steric Interaction
    Boles, Michael A.
    Talapin, Dmitri V.
    JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2014, 136 (16) : 5868 - 5871
  • [42] Dramatic deviations from ideal tetrahedral geometry and destabilization despite contracted bond lengths
    Kaupp, M.
    Schleyer, P.R.
    Angewandte Chemie (International Edition in English), 1992, 31 (09):
  • [43] Temperature dependence of photoluminescence from CdSe nanocrystals embedded in silica matrix
    Chahboun, A.
    Levichev, S.
    Rolo, A. G.
    Conde, O.
    Gomes, M. J. M.
    JOURNAL OF LUMINESCENCE, 2009, 129 (10) : 1235 - 1238
  • [44] Pressure dependence of excited state dynamics in CdSe/CdS heterostructure nanocrystals
    Hanson, Lindsey
    Li, Christina
    Alivisatos, Paul
    ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2018, 255
  • [45] Size dependence of the luminescence properties in Si nanocrystals
    Franzò, G
    Iacona, F
    Spinella, C
    Cammarata, S
    Grimaldi, MG
    MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2000, 69 : 454 - 458
  • [46] Size dependence of structural metastability in semiconductor nanocrystals
    Chen, CC
    Herhold, AB
    Johnson, CS
    Alivisatos, AP
    SCIENCE, 1997, 276 (5311) : 398 - 401
  • [47] Size dependence of excitons in silicon nanocrystals - Comment
    Delerue, C
    Lannoo, M
    Allan, G
    PHYSICAL REVIEW LETTERS, 1996, 76 (16) : 3038 - 3038
  • [48] Size Dependence of Elastic Properties of Argon Nanocrystals
    Magomedov, M. N.
    PHYSICS OF THE SOLID STATE, 2019, 61 (01) : 23 - 29
  • [49] Size dependence of phosphorus doping in silicon nanocrystals
    He, Wei
    Li, Zhengping
    Wen, Chao
    Liu, Hong
    Shen, Wenzhong
    NANOTECHNOLOGY, 2016, 27 (42)
  • [50] Size dependence of lattice constants of semiconductor nanocrystals
    Cherian, Roby
    Mahadevan, Priya
    APPLIED PHYSICS LETTERS, 2008, 92 (04)
12345