RETRACTED: Investigation on manganese-doped ZnSe QDs prepared from self-assembled template of reverse micelle

Qiu, Qi; Heckler, Tracy; Wang, Jun; Mei, Bingchu; Mountziaris, T. J.

doi:10.1016/j.jlumin.2010.03.020

Cited by 6 publications

(3 citation statements)

References 35 publications

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“…3 The behaviors of these g i in the two phases can easily be matched together by making use of some shape functions [7,48].…”

Section: The Primordial Perturbation and Its Spectrummentioning

confidence: 99%

“…To the best of current knowledge, the inflation scenario will be past-complete, only if it happens after a nonsingular bounce which is preceded by a contraction [3][4][5][6][7], or a slow expansion phase (namely, the Genesis phase) with increasing energy density [8][9][10]. These two possibilities will be called bounce-inflation and Genesis-inflation, respectively.…”

Section: Introductionmentioning

confidence: 99%

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The effective field theory of nonsingular cosmology: II

Cai

Qiu

et al. 2017

Eur. Phys. J. C

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Based on the effective field theory (EFT) of cosmological perturbations, we explicitly clarify the pathology in nonsingular cubic Galileon models and show how to cure it in EFT with new insights into this issue. With the least set of EFT operators that are capable to avoid instabilities in nonsingular cosmologies, we construct a nonsingular model dubbed the Genesis-inflation model, in which a slowly expanding phase (namely, Genesis) with increasing energy density is followed by slow-roll inflation. The spectrum of the primordial perturbation may be simulated numerically, which shows itself a large-scale cutoff, as the large-scale anomalies in CMB might be a hint for.

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“…3 The behaviors of these g i in the two phases can easily be matched together by making use of some shape functions [7,48].…”

Section: The Primordial Perturbation and Its Spectrummentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The effective field theory of nonsingular cosmology: II

Cai

Qiu

et al. 2017

Eur. Phys. J. C

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“…In Horndeski models, the scalar field is coupled with gravity and higher curvature terms appear in the Lagrangian. Since it is expected that in hot universe scenario higher curvature corrections (motivated by quantum effects or string theories) emerge in the theory of gravitation, the studies of inflation in Horndeski gravity are popular and have been carried out in many works [9,10,11,12,13,14,15,16,17,18,19,20,21,22,23].…”

Section: Introductionmentioning

confidence: 99%

k $k$ -essence in Horndeski models

Myrzakul

Myrzakulov

Sebastiani

2016

Astrophys Space Sci

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In this paper, we investigate a simple class of Horndeski models where the scalar field plays the role of a k-essence fluid. We present several solutions for early-time universe, namely inflation and cosmological bounce, by making use of some reconstruction technique. Moreover, we furnish the formalism to calculate perturbations in FRW space-time and we compute the spectral index and the tensor-to-scalar ratio during inflation.

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Passivated ZnSe nanocrystals prepared by hydrothermal methods and their optical properties

et al. 2010

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Homogeneous ZnSe nanocrystals were prepared via surfactant-assisted hydrothermal method. Surfactants agent CTAB was used to control the particle morphology and the growth rate. The structure, morphology and optical properties of ZnSe nanocrystals have been investigated by XRD, TEM and luminescence spectroscopy. The results indicated that the size of ZnSe nanocrystals ranged from 3.0 nm to 5.0 nm with cubic zinc blende structure. ZnSe nanocrystals coated by CTAB were revealed high dispersibility and distribution under TEM. Compared to the bulk ZnSe, the absorption edges and photoluminescence peaks of ZnSe nanocrystals were blue shifted to higher energies due to the quantum confinement effect. The emission intensity was strengthened after coated CTAB compared to bare sample. This was mainly due to the surface passivation. Meanwhile, we simply explored the formation mechanism of ZnSe nanocrystal in hydrothermal system.

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RETRACTED: Investigation on manganese-doped ZnSe QDs prepared from self-assembled template of reverse micelle

Cited by 6 publications

References 35 publications

The effective field theory of nonsingular cosmology: II

The effective field theory of nonsingular cosmology: II

k $k$ -essence in Horndeski models

Passivated ZnSe nanocrystals prepared by hydrothermal methods and their optical properties

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