Self-consistent one-electron equation for many-electron systems and its general application to ground and excited states

Jong, Chol

doi:10.1140/epjp/s13360-020-00732-x

Cited by 3 publications

(2 citation statements)

References 52 publications

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“…The density functional theory (DFT) calculations including structural optimization, electronic properties, and stress tensors for Cr 3+ -doped and undoped AGaP 2 O 7 (A= Na, K) materials were conducted by using the Vienna ab initio Simulation Package (VASP). , Additionally, the PBE interchange-correlation functional was adopted in those calculations . The basic set of 1 × 10 –6 eV was used for the electronic convergence criteria, and 0.001 eV/Å was set for the relaxation of atomic positions and lattice parameters.…”

Section: Methodsmentioning

confidence: 99%

“…44,45 Additionally, the PBE interchange-correlation functional was adopted in those calculations. 46 The basic set of 1 × 10 −6 eV was used for the electronic convergence criteria, and 0.001 eV/Å was set for the relaxation of atomic positions and lattice parameters. A 6 × 4 × 6 Γcentered Monkhorst−Pack k-point grid was used to sample the first Brillouin zone, and the cutoff energy of the plane waves was set to be 520 eV.…”

Section: Computationmentioning

confidence: 99%

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Thermally Robust Broadband Near-Infrared Luminescence in the NaGaP₂O₇:Cr³⁺ Phosphor

Zhang

Zhong

et al. 2022

ACS Appl. Opt. Mater.

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The near-infrared (NIR) phosphor-converted lightemitting diode (pc-LED) is an emerging portable light source and has multifunctional applications based on spectroscopic technology. Nevertheless, it is still difficult to develop broadband NIR materials with strong resistance toward thermal quenching. In this work, a thermally robust broadband NIR phosphor NaGa-P 2 O 7 :Cr 3+ was reported, which has an emission peak located at 793 nm, and the emission spectrum covers 650−1100 nm with a full width at half-maximum (fwhm) of 115 nm. The emission intensity at 150 °C was surprisingly maintained as 85.45% of that at 25 °C, indicating an outstanding ability to resist thermal quenching. A systematic investigation of aspects such as structural rigidity, the band gap of the host, and the electron phonon coupling effect was carried out to understand the mechanism of thermally robust luminescence in this material. Finally, the NaGa 0.94 Cr 0.06 P 2 O 7 NIR phosphor and 450 nm InGaN LED chip were combined to produce a prototype NIR light source. This device generates a NIR output power of 44.43 mW and a photoelectric conversion efficiency of 10.4% when driven at 150 mA, demonstrating a good performance of this material for practical applications.

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Section: Methodsmentioning

confidence: 99%

Section: Computationmentioning

confidence: 99%

Thermally Robust Broadband Near-Infrared Luminescence in the NaGaP₂O₇:Cr³⁺ Phosphor

Zhang

Zhong

et al. 2022

ACS Appl. Opt. Mater.

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Circularly polarized attosecond light generation from OCS molecules irradiated by the combination of linear polarized infrared and orthogonal terahertz fields

Fu,

Guo,

Zhou

et al. 2023

The Journal of Chemical Physics

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Researching ultrafast dynamics and creating coherent light sources will both benefit significantly from the establishment of polarization control in high-order harmonic generation (HHG). By employing the time-dependent density functional theory method, we investigate HHG of carbonyl sulfide molecules using a combination of a linear polarized infrared (IR) laser and a weaker orthogonal Terahertz (THz) field. Our findings show that by adjusting the amplitude of the THz field, the movement scale of electrons in the THz direction can be tuned, thereby one can control the harmonic intensity in the IR laser direction. This method allows for the creation of near-circularly polarized attosecond pulses. Furthermore, the ellipticity of the attosecond pulse may be changed by modifying the carrier-envelope phase of the IR laser pulse.

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Thermally Robust Broadband Near-Infrared Luminescence in the Nagap2o7:Cr3+ Phosphor

Li¹,

Zhong²,

Chen³

et al. 2022

SSRN Journal

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Self-consistent one-electron equation for many-electron systems and its general application to ground and excited states

Cited by 3 publications

References 52 publications

Thermally Robust Broadband Near-Infrared Luminescence in the NaGaP₂O₇:Cr³⁺ Phosphor

Thermally Robust Broadband Near-Infrared Luminescence in the NaGaP₂O₇:Cr³⁺ Phosphor

Circularly polarized attosecond light generation from OCS molecules irradiated by the combination of linear polarized infrared and orthogonal terahertz fields

Thermally Robust Broadband Near-Infrared Luminescence in the Nagap2o7:Cr3+ Phosphor

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Self-consistent one-electron equation for many-electron systems and its general application to ground and excited states

Cited by 3 publications

References 52 publications

Thermally Robust Broadband Near-Infrared Luminescence in the NaGaP2O7:Cr3+ Phosphor

Thermally Robust Broadband Near-Infrared Luminescence in the NaGaP2O7:Cr3+ Phosphor

Circularly polarized attosecond light generation from OCS molecules irradiated by the combination of linear polarized infrared and orthogonal terahertz fields

Thermally Robust Broadband Near-Infrared Luminescence in the Nagap2o7:Cr3+ Phosphor

Contact Info

Product

Resources

About

Thermally Robust Broadband Near-Infrared Luminescence in the NaGaP₂O₇:Cr³⁺ Phosphor

Thermally Robust Broadband Near-Infrared Luminescence in the NaGaP₂O₇:Cr³⁺ Phosphor