Three-dimensional structure of CdX (X=Se,Te) nanocrystals by total x-ray diffraction

S. K. Pradhan; Z. T. Deng; F. Tang; C. Wang; Y. Ren; P. Moeck; V. Petkov

doi:10.1063/1.2767615

Three-dimensional structure of CdX (X=Se,Te) nanocrystals by total x-ray diffraction

S. K. Pradhan, Z. T. Deng, F. Tang, C. Wang, Y. Ren, P. Moeck, V. Petkov

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

The three-dimensional structure of oleic acid-capped CdSe and thiol-capped CdTe nanocrystals used as quantum dots has been determined by total synchrotron radiation x-ray diffraction and atomic pair distribution function analysis. Both CdSe and CdTe are found to exhibit the zinc-blende-type atomic ordering. It is only slightly distorted in CdSe implying the presence of nanosize domains and very heavily distorted in CdTe due to the presence of distinct core-shell regions. The results well demonstrate the great potential of the experimental approach and thus encourage its wider application in quantum dot research.

Original language	English
Article number	044304
Journal	Journal of Applied Physics
Volume	102
Issue number	4
DOIs	https://doi.org/10.1063/1.2767615
State	Published - 2007

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title = "Three-dimensional structure of CdX (X=Se,Te) nanocrystals by total x-ray diffraction",

abstract = "The three-dimensional structure of oleic acid-capped CdSe and thiol-capped CdTe nanocrystals used as quantum dots has been determined by total synchrotron radiation x-ray diffraction and atomic pair distribution function analysis. Both CdSe and CdTe are found to exhibit the zinc-blende-type atomic ordering. It is only slightly distorted in CdSe implying the presence of nanosize domains and very heavily distorted in CdTe due to the presence of distinct core-shell regions. The results well demonstrate the great potential of the experimental approach and thus encourage its wider application in quantum dot research.",

author = "Pradhan, {S. K.} and Deng, {Z. T.} and F. Tang and C. Wang and Y. Ren and P. Moeck and V. Petkov",

note = "Funding Information: The work was supported by NSF through Grant No. DMR 0304391(NIRT) and CMU through Grant No. REF C602281. Use of the Advanced Photon Source was supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. One of the authors (C.W.) is grateful to the support of National Science Foundation for Distinguished Young Scholars of China (50525310). ",

year = "2007",

doi = "10.1063/1.2767615",

language = "English",

volume = "102",

journal = "Journal of Applied Physics",

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T1 - Three-dimensional structure of CdX (X=Se,Te) nanocrystals by total x-ray diffraction

AU - Pradhan, S. K.

AU - Deng, Z. T.

AU - Tang, F.

AU - Wang, C.

AU - Ren, Y.

AU - Moeck, P.

AU - Petkov, V.

N1 - Funding Information: The work was supported by NSF through Grant No. DMR 0304391(NIRT) and CMU through Grant No. REF C602281. Use of the Advanced Photon Source was supported by the U. S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. One of the authors (C.W.) is grateful to the support of National Science Foundation for Distinguished Young Scholars of China (50525310).

PY - 2007

Y1 - 2007

N2 - The three-dimensional structure of oleic acid-capped CdSe and thiol-capped CdTe nanocrystals used as quantum dots has been determined by total synchrotron radiation x-ray diffraction and atomic pair distribution function analysis. Both CdSe and CdTe are found to exhibit the zinc-blende-type atomic ordering. It is only slightly distorted in CdSe implying the presence of nanosize domains and very heavily distorted in CdTe due to the presence of distinct core-shell regions. The results well demonstrate the great potential of the experimental approach and thus encourage its wider application in quantum dot research.

AB - The three-dimensional structure of oleic acid-capped CdSe and thiol-capped CdTe nanocrystals used as quantum dots has been determined by total synchrotron radiation x-ray diffraction and atomic pair distribution function analysis. Both CdSe and CdTe are found to exhibit the zinc-blende-type atomic ordering. It is only slightly distorted in CdSe implying the presence of nanosize domains and very heavily distorted in CdTe due to the presence of distinct core-shell regions. The results well demonstrate the great potential of the experimental approach and thus encourage its wider application in quantum dot research.

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U2 - 10.1063/1.2767615

DO - 10.1063/1.2767615

M3 - Article

AN - SCOPUS:34548426133

SN - 0021-8979

VL - 102

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 4

M1 - 044304

ER -

Three-dimensional structure of CdX (X=Se,Te) nanocrystals by total x-ray diffraction

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