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Journal of Materials Science
Erschienen in: Journal of Materials Science 21/2018

13.07.2018 | Electronic materials

HAADF-STEM for the analysis of core–shell quantum dots

verfasst von: N. Fernández-Delgado, M. Herrera, J. Pizarro, P. Galindo, S. I. Molina

Erschienen in: Journal of Materials Science | Ausgabe 21/2018

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Abstract

The capability of the imaging technique of high-angle annular dark field scanning transmission electron microscopy (HAADF-STEM) to detect the interface in small core/shell quantum dots (QDs) is investigated. In particular, two methodologies based on HAADF-STEM-simulated images are evaluated. The first methodology relies on quantifying the HAADF-STEM intensity variations in the particle to be correlated with the atomic number (Z) changes through the interface core–shell. The second approach consists of the measurement of the strain field of these QDs based on the analysis of the core–shell lattice mismatch. The applicability of both methodologies for core–shell particles of different sell thicknesses and core compositions is discussed. The work has showed that both methodologies are expected to provide successful results as far as the quality of the experimental images is good enough. In addition, both procedures have been applied to an experimental image of CdSe/ZnS colloidal core/shell QD with a nominal value of shell thickness of 0.6 nm, demonstrating the successful detection of the ZnS shell.
Vorheriger Artikel Charge transport properties of pyrene and its derivatives: optoelectronic and nonlinear optical applications
Nächster Artikel Structural and electrical properties of Ge-doped ZrO2 thin films grown by atomic layer deposition for high-k dielectrics

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Literatur
1.
Litvin AP, Martynenko IV, Purcell-Milton F et al (2017) Colloidal quantum dots for optoelectronics. J Mater Chem A 5:13252–13275CrossRef
2.
Baskoutas S (2006) Size-dependent band gap of colloidal quantum dots. J Appl Phys 99:13708CrossRef
3.
Byun HJ, Song WS, Yang H (2011) Facile consecutive solvothermal growth of highly fluorescent InP/ZnS core/shell quantum dots using a safer phosphorus source. Nanotechnology 22:235605–235606CrossRef
4.
Meinardi F, Colombo A, Velizhanin KA et al (2014) Large-area luminescent solar concentrators based on Stokes-shift-engineered nanocrystals in a mass-polymerized PMMA matrix. Nat Photonics 8:392–399CrossRef
5.
Vinayakan R, Shanmugapriya T, Nair PV et al (2007) An approach for optimizing the shell thickness of core–shell quantum dots using photoinduced charge transfer. J Phys Chem C 111:10146–10149CrossRef
6.
Yu Z, Quo L, Du H et al (2005) Shell distribution on colloidal CdSe/ZnS quantum dots. Nano Lett 5:565–570CrossRef
7.
Kisielowski C, Freitag B, Bischoff M et al (2008) Detection of single atoms and buried defects in three dimensions by aberration-corrected electron microscope with 0.5-Å information limit. Microsc Microanal 14:469–477CrossRef
8.
Kauko H, Zheng CL, Zhu Y et al (2013) Compositional analysis of GaAs/AlGaAs heterostructures using quantitative scanning transmission electron microscopy. Appl Phys Lett 103:232111–232114CrossRef
9.
Van Aert S, Batenburg KJ, Rossell MD et al (2011) Three-dimensional atomic imaging of crystalline nanoparticles. Nature 470:374–377CrossRef
10.
Casavola M, Van Huis MA, Bals S et al (2012) Anisotropic cation exchange in PbSe/CdSe core/shell nanocrystals of different geometry. Chem Mater 24:294–302CrossRef
11.
Deepak FL, Casillas-Garcia G, Esparza R et al (2011) New insights into the structure of PdAu nanoparticles as revealed by aberration-corrected STEM. J Cryst Growth 325:60–67CrossRef
12.
Pizarro J, Galindo PL, Guerrero E et al (2008) Simulation of high angle annular dark field scanning transmission electron microscopy images of large nanostructures. Appl Phys Lett 93:2006–2009CrossRef
13.
Galindo PL, Kret S, Sanchez AM et al (2007) The peak pairs algorithm for strain mapping from HRTEM images. Ultramicroscopy 107:1186–1193CrossRef
14.
Kunstman P, Coulon J, Kolmykov O et al (2018) One step synthesis of bright luminescent core/shell CdTexS1−x/ZnS quantum dots emitting from the visible to the near infrared. J Lumin 194:760–767CrossRef
15.
Rezaei B, Shahshahanipour M, Ensafi AA, Farrokhpour H (2017) Development of highly selective and sensitive fluorimetric label-free mercury aptasensor based on cysteamine@CdTe/ZnS quantum dots, experimental and theoretical investigation. Sens Actuators B Chem 247:400–407CrossRef
16.
Ramasamy P, Kim N, Kang YS et al (2017) Tunable, bright, and narrow-band luminescence from colloidal indium phosphide quantum dots. Chem Mater 29:6893–6899CrossRef
17.
Mordvinova N, Vinokurov A, Kuznetsova T et al (2017) Highly luminescent core–shell InP/ZnX (X = S, Se) quantum dots prepared via a phosphine synthetic route. Dalt Trans 46:1297–1303CrossRef
18.
Rosenthal SJ, McBride J, Pennycook SJ, Feldman LC (2007) Synthesis, surface studies, composition and structural characterization of CdSe, core/shell and biologically active nanocrystals. Surf Sci Rep 62:111–157CrossRef
19.
Cho Y, Park JS, Yang J-M et al (2015) Quantitative compositional analysis of InxGa1−xN/GaN multiquantum wells in light-emitting diodes. J Mater Res 30:2893–2899CrossRef
20.
Grieb T, Müller K, Fritz R et al (2013) Quantitative chemical evaluation of dilute GaNAs using ADF STEM: avoiding surface strain induced artifacts. Ultramicroscopy 129:1–9CrossRef
21.
Zuo JM, Kim M, O’Keeffe M et al (2014) Identifying and correcting scan noise and drift in the scanning transmission electron microscope. Phys Rev B Condens Matter Mater Phys 89:12248–12265
22.
Van Schooneveld MM, Gloter A, Stephan O et al (2010) Imaging and quantifying the morphology of an organic-inorganic nanoparticle at the sub-nanometre level. Nat Nanotechnol 5:538–544CrossRef
23.
Zhang Z, Long Y, Cazottes S et al (2015) The peculiarity of the metal-ceramic interface. Sci Rep 5:11460CrossRef
24.
Wu M, Trampert A, Al-Zoubi T et al (2015) Interface structure and strain state of InAs nano-clusters embedded in silicon. Acta Mater 90:133–139CrossRef
25.
Li C, Wang L, Wang Z et al (2016) Atomic resolution interfacial structure of lead-free ferroelectric K0.5Na0.5NbO3 thin films deposited on SrTiO3. Sci Rep 6:37788CrossRef
26.
Tang YL, Zhu YL, Ma XL (2016) On the benefit of aberration-corrected HAADF-STEM for strain determination and its application to tailoring ferroelectric domain patterns. Ultramicroscopy 160:57–63CrossRef
27.
Mahalingam K, Haugan HJ, Brown GJ, Eyink KG (2013) Quantitative analysis of interfacial strain in InAs/GaSb superlattices by aberration-corrected HRTEM and HAADF-STEM. Ultramicroscopy 127:70–75CrossRef
28.
Li J, Zhao C, Xing Y et al (2013) Full-field strain mapping at a Ge/Si heterostructure interface. Materials (Basel) 6:2130–2142CrossRef
29.
Kim H, Meng Y, Kwon JH et al (2018) Determination of atomic vacancies in InAs/GaSb strained-layer superlattices by atomic strain. IUCrJ 5:67–72CrossRef
30.
Monteforte M, Kobayashi S, Tung LD et al (2016) Quantitative two-dimensional strain mapping of small core–shell FePt@Fe3O4 nanoparticles. New J Phys 18:033016CrossRef
31.
Reiss P, Protière M, Li L (2009) Core/shell semiconductor nanocrystals. Small 5:154–168CrossRef
32.
Yu WW, Qu L, Guo W, Peng X (2003) Experimental determination of the extinction coefficient of CdTe, CdSe, and CdS nanocrystals. Chem Mater 15:2854–2860CrossRef
33.
Gong K, Kelley DF (2014) A predictive model of shell morphology in CdSe/CdS core/shell quantum dots. J Chem Phys 141:194704CrossRef
Metadaten
Titel
HAADF-STEM for the analysis of core–shell quantum dots
verfasst von
N. Fernández-Delgado
M. Herrera
J. Pizarro
P. Galindo
S. I. Molina
Publikationsdatum
13.07.2018
Verlag
Springer US
Erschienen in
Journal of Materials Science / Ausgabe 21/2018
Print ISSN: 0022-2461
Elektronische ISSN: 1573-4803
DOI
https://doi.org/10.1007/s10853-018-2694-5

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