High resolution spectroscopy of the 7F0↔5D0 transition in Eu3+:KYF4

Bartholomew, John G.; Zhang, Zhonghan; Lieto, A. Di; Tonelli, M.; Goldner, Ph.

doi:10.1016/j.jlumin.2015.11.025

Cited by 5 publications

(4 citation statements)

References 34 publications

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“…[14][15][16][17] It has long fluorescence lifetime due to the relative weak oscillatory strength and KYF 4 structure is very accommodative to all sizes of rare earth ions. 11,14,16,18,19 But the researches about KYF 4 up-conversion nanoparticles are scarce. 11,[20][21][22][23] Apart from concerning the kinds of different host materials, we cannot ignore the current cumbersome synthesis methods including hydrothermal/solvothermal method and thermal decomposition that need high reaction temperature and long reaction time.…”

Section: Introductionmentioning

confidence: 99%

Extremely straightforward room temperature co-precipitation method to synthesize cubic KYF4:Yb/Er up-conversion nanoparticles in deionized water-ethanol solution

Yang

Gredin²,

Mortier

2019

Optical Materials

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Through extremely facile RT(room temperature) co-precipitation method in mixed deionized water and ethanol solution, cubic KYF 4 :10%Yb/5%Er up-conversion nanoparticles with excellent emission intensity and desirable fluorescence lifetime after annealing under 974 nm pulsed laser excitation have been successfully synthesized. The X-ray powder diffraction pattern has been refined by profile fit in order to obtain accurate lattice parameters. The mean crystallite size and microstrain have been calculated by Williamson-Hall method. Joint effect of crystallite size and microstrain on photoluminescence properties have been studied based on the obtained samples. Green-to-red ratios of the emission spectra and slopes of the emission intensity versus excitation laser power have been investigated. The fluorescence lifetimes of the present samples have also been reported. The extraordinarily facile synthesis route, in environment-friendly solvents, provides a novel proposal to remove some of the obstacles that hinder the up-conversion nanoparticles development.

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Section: Introductionmentioning

confidence: 99%

Extremely straightforward room temperature co-precipitation method to synthesize cubic KYF4:Yb/Er up-conversion nanoparticles in deionized water-ethanol solution

Yang

Gredin²,

Mortier

2019

Optical Materials

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“…To our knowledge, only EuP 5 O 14 has a reported 5 D 0 → 7 F 0 inhomogeneous linewidth, 3.5 GHz, and optical coherence time, 10 μs . Though much larger than needed to resolve hyperfine energy levels (∼70–140 MHz), this linewidth is similar to or lower than that of europium-doped systems − while providing a drastically higher europium concentration. The line profile was also asymmetric, and the linewidth varied across the crystal, indicating strain and crystal homogeneity contributed to broadening …”

Section: Resultsmentioning

confidence: 82%

Design Rules, Accurate Enthalpy Prediction, and Synthesis of Stoichiometric Eu³⁺ Quantum Memory Candidates

Riedel,

Shoemaker

2024

J. Am. Chem. Soc.

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Stoichiometric Eu 3+ compounds have recently shown promise for building dense, optically addressable quantum memory as the cations' long nuclear spin coherence times and shielded 4f electron optical transitions provide reliable memory platforms. Implementing such a system, though, requires ultranarrow, inhomogeneous linewidth compounds. Finding this rare linewidth behavior within a wide range of potential chemical spaces remains difficult, and while exploratory synthesis is often guided by density functional theory (DFT) calculations, lanthanides' 4f electrons pose unique challenges for stability predictions. Here, we report DFT procedures that reliably reproduce known phase diagrams and correctly predict two experimentally realized quantum memory candidates. We are the first to synthesize the double perovskite halide Cs 2 NaEuF 6 . It is an air-stable compound with a calculated band gap of 5.0 eV that surrounds Eu 3+ with mononuclidic elements, which are desirable for avoiding inhomogeneous linewidth broadening. We also analyze computational database entries to identify phosphates and iodates as the next generation of chemical spaces for stoichiometric quantum memory system studies. This work identifies new candidate platforms for exploring chemical effects on quantum memory candidates' inhomogeneous linewidth while also providing a framework for screening Eu 3+ compound stability with DFT.

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“…71 To our knowledge, only EuP 5 O 14 has a reported 5 D 0 → 7 F 0 inhomogeneous linewidth, 3.5 GHz, and optical coherence time, 10 µs. 78 Though much larger than needed to resolve hyperfine energy levels (∼70-140 MHz), this linewidth is similar to or lower than europium doped systems [79][80][81][82] while providing a drastically higher europium concentration.…”

Section: Other Materials Project Database Candidatesmentioning

confidence: 99%

Design rules, accurate enthalpy prediction, and synthesis of stoichiometric Eu3+ quantum memory candidates

Riedel,

Shoemaker

2023

Preprint

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Stoichiometric Eu3+ compounds have recently shown promise for building dense, optically addressable quantum memory as the cations’ long nuclear spin coherence times and shielded 4f electron optical transitions provide reliable memory platforms. Implementing such a system, though, requires ultra-narrow inhomogeneous linewidth compounds. Finding this rare linewidth behavior within a wide range of potential chemical spaces remains difficult, and while exploratory synthesis is often guided by density functional theory (DFT) calculations, lanthanides’ 4f electrons pose unique challenges for stability predictions. Here, we report DFT procedures that reliably reproduce known phase diagrams and that correctly predict two experimentally realized quantum memory candidates. We are the first to synthesize the double perovskite halide Cs2NaEuF6. It is an air-stable compound with a calculated band gap of 6.9 eV that surrounds Eu3+ with mononuclidic elements, which are desirable for avoiding inhomogeneous linewidth broadening. We also analyze computational database entries to identify phosphates and iodates as the next generation of chemical spaces for stoichiometric quantum memory system studies. This work identifies new candidate platforms for exploring chemical effects on quantum memory candidates’ inhomogeneous linewidth while also providing a framework for screening Eu3+ compound stability with DFT.

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High resolution spectroscopy of the 7F0↔5D0 transition in Eu3+:KYF4

Cited by 5 publications

References 34 publications

Extremely straightforward room temperature co-precipitation method to synthesize cubic KYF4:Yb/Er up-conversion nanoparticles in deionized water-ethanol solution

Extremely straightforward room temperature co-precipitation method to synthesize cubic KYF4:Yb/Er up-conversion nanoparticles in deionized water-ethanol solution

Design Rules, Accurate Enthalpy Prediction, and Synthesis of Stoichiometric Eu³⁺ Quantum Memory Candidates

Design rules, accurate enthalpy prediction, and synthesis of stoichiometric Eu3+ quantum memory candidates

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High resolution spectroscopy of the 7F0↔5D0 transition in Eu3+:KYF4

Cited by 5 publications

References 34 publications

Extremely straightforward room temperature co-precipitation method to synthesize cubic KYF4:Yb/Er up-conversion nanoparticles in deionized water-ethanol solution

Extremely straightforward room temperature co-precipitation method to synthesize cubic KYF4:Yb/Er up-conversion nanoparticles in deionized water-ethanol solution

Design Rules, Accurate Enthalpy Prediction, and Synthesis of Stoichiometric Eu3+ Quantum Memory Candidates

Design rules, accurate enthalpy prediction, and synthesis of stoichiometric Eu3+ quantum memory candidates

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Product

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Design Rules, Accurate Enthalpy Prediction, and Synthesis of Stoichiometric Eu³⁺ Quantum Memory Candidates