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2 article(s) from Mordvinova, Natalia E.

AgCl-doped CdSe quantum dots with near-IR photoluminescence

Pavel A. Kotin,
Sergey S. Bubenov,
Natalia E. Mordvinova and
Sergey G. Dorofeev

Beilstein J. Nanotechnol. 2017, 8, 1156–1166, doi:10.3762/bjnano.8.117

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Figure 1: XRD patterns and TEM images of different samples with varying AgCl amount: (a) AgCl_0, (b) AgCl_1, ...

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Figure 2: HRTEM images of TP (sample AgCl_8) (a), EPs of samples AgCl_10 (b) and AgCl_ 40 (c) with Fourier tr...

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Figure 3: HRTEM image of the “match head” particle of sample AgCl_10 and the result of structure investigatio...

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Figure 4: XRF analysis of Ag content during aging of NPs. (a,b) Results obtained by using Equation 1 for samples AgCl_1...

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Figure 5: Element distribution maps of sample AgCl_32 on the day of the synthesis of NPs. (a) HAADF-STEM imag...

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Figure 6: PL spectra of the samples AgCl_0, AgCl_1, AgCl_2, AgCl_4 and AgCl_8.

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Figure 7: PL spectra of heavy fractions of samples AgCl_1, AgCl_2, AgCl_4 and AgCl_8.

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Figure 8: PL spectra of samples AgCl_10, AgCl_12, AgCl_16, AgCl_24, AgCl_32 and AgCl_40.

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Figure 9: Positions of exciton bands and LEPs maxima from the amount of AgCl added for all samples.

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Figure 10: QY values and PL spectra of samples AgCl_4, AgCl_10, AgCl_24 and AgCl_40 after the synthesis immedi...

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Figure 11: Absorbance spectra of all AgCl-doped CdSe QDs samples. Inset: low-energy regions of spectra without...

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Full Research Paper

Published 29 May 2017

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Addition of Zn during the phosphine-based synthesis of indium phospide quantum dots: doping and surface passivation

Natalia E. Mordvinova,
Alexander A. Vinokurov,
Oleg I. Lebedev,
Tatiana A. Kuznetsova and
Sergey G. Dorofeev

Beilstein J. Nanotechnol. 2015, 6, 1237–1246, doi:10.3762/bjnano.6.127

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Figure 1: UV–vis absorption spectra of Zn-doped InP QDs.

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Figure 2: Experimental X-ray powder diffractogram for synthesized InP QDs with different amounts of Zn dopant....

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Figure 3: (a) Bright-field low-magnification TEM image of non-doped InP QDs and its number-weighted size dist...

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Figure 4: (a) Low-magnification HAADF-STEM images of Zn/InP QDs and (b–g) selected high-resolution images of ...

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Figure 5: (a) EDX spectrum taken from the area of several tens of ODs; (b) HAADF-STEM image and elemental map...

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Figure 6: Dependence of UV–vis absorption spectra and PL peak position on M_nom.

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Figure 7: (a) Dependence of QY on M_nom; (insert) dependence of M_exp on M_nom, obtained from X-ray fluorescence...

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Figure 8: (a) PL spectra of synthesized QDs; (b) normalized PL spectra in energy coordinates.

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Figure 9: PL spectra of (a) non-doped QDs and (b) one of the doped QDs deconvoluted into energy coordinates b...

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Figure 10: (a) Evolution of the excitonic peak with increasing M_nom; (b) evolution of the defect peak with inc...

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Figure 11: Comparison of typical excitation, PL and UV–vis absorption spectra.

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Figure 12: The scheme of PL formation with participation of Zn levels.

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Figure 13: Normalized PL spectra of three samples: non-doped etched with HF, doped with Zn and etched with HF,...

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Full Research Paper

Published 01 Jun 2015

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