Machine learning identification of experimental conditions for the synthesis of single-phase white phosphors

Yuan, Hailong; Génois, Romain; Glais, Estelle; Chen, Fei; Shen, Qiang; Zhang, Lianmeng; Faulques, Eric; Qi, Luyuan; Massuyeau, Florian; Gautier, Romain

doi:10.1016/j.matt.2021.10.004

Cited by 5 publications

(4 citation statements)

References 37 publications

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“…Phosphor-conversion white light-emitting diodes (PC-WLEDs) have been generally incorporated into daily life due to their environmentally friendly, durable, and economical advantages. [1][2][3] Currently, Eu 2+ -doped phosphors are widely used in PC-WLEDs because of their desirable thermal stability and tunability. [4][5][6] For instance, (Sr,Ca)AlSiN 3 :Eu 2+ commercial phosphor possesses remarkable merits, including wide distribution of excitation spectrum (325-540 nm), tunable emission (619-650 nm), and desirable thermal stability (423 K, 89%).…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Highly Efficient and Thermally Stable BaAl₄Sb₂O₁₂:Eu²⁺ Phosphor in Air

Wang

Dong

Lyu

et al. 2023

Adv Funct Materials

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Despite many Eu2+‐doped phosphors having been synthesized by different methods, a simple synthetic strategy for Eu2+‐doped high‐performance phosphors remains one of the significant challenges for phosphor‐conversion white light‐emitting diodes. Herein, a novel broad‐band excitation yellow phosphor Ba0.985Al4Sb2O12:0.015Eu2+ (BASO:Eu2+) with high thermal stability (423 K, 94%) and internal quantum efficiency (96.7%) are reported. More importantly, the novel phosphor is synthesized by solid‐state reaction at high temperatures in air. Structural and spectral analyses show that the Eu2+ ions in BASO preferably occupy [BaO8] hexahedra, forming a single luminescence center. This study provides a reliable direction for the facile synthesis of high‐performance Eu2+‐doped phosphors in air.

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Section: Introductionmentioning

confidence: 99%

Facile Synthesis of Highly Efficient and Thermally Stable BaAl₄Sb₂O₁₂:Eu²⁺ Phosphor in Air

Wang

Dong

Lyu

et al. 2023

Adv Funct Materials

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“…The high‐temperature solid‐state method can be used to synthesize rare‐earth/transition‐metal‐doped fluorides, [ 23 ] tungstate, [ 24 ] molybdates, [ 25 ] titanates, [ 26 ] and gallates [ 27 ] with near‐infrared luminescence.…”

Section: Preparation Methodsmentioning

confidence: 99%

Near‐Infrared Luminescent Materials Incorporating Rare Earth/Transition Metal Ions: From Materials to Applications

Li,

Wang,

Liao

2024

Advanced Materials

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Near‐infrared materials exhibiting high photoluminescence quantum yields present a promising avenue to broaden our capacity and threshold for detection and manipulation, extending beyond the visible emission range. The spotlight has shifted to near‐infrared (NIR) luminescent materials emitting beyond 1000 nm, with growing interest due to their unique characteristics. The ability of NIR‐II emission (1000‐1700 nm) to penetrate deeply and transmit independently positions these NIR luminescent materials for applications in optical‐communication devices, bioimaging, and photodetectors. The combination of rare earth metals/transition metals with a variety of matrix materials provides a new platform for creating new chemical and physical properties for materials science and device applications. In this review, we summarize the recent advancements in NIR emission activated by rare earth and transition metal ions and illustrate their role in applications spanning bioimaging, sensing, and optoelectronics. We start from the various synthesis techniques, including high‐temperature solid‐state, hydrothermal, and thermal decomposition methods, on how to delicately incorporate the rare‐earth/transition metals to the NIR various matrixes, each imparting distinct characteristics to these luminescent materials. We then extend the discussion to strategies of enhancing excitation absorption and emission efficiency, spotlighting innovations like dye sensitization and surface plasmon resonance effects. Subsequently, a significant focus is placed on functionalization strategies and their applications. Finally, we provide a comprehensive analysis of the challenges and proposed strategies for rare earth/transition metal ion‐doped near‐infrared luminescent materials, summarizing the insights of each section.This article is protected by copyright. All rights reserved

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“…27,28 The advantages of this method also include conceptually straightforward implementation, and has been successfully used in designing interesting materials. Gautier et al 29 established a database of 88 samples which were obtained by post-treatment of eight compounds with different amounts of Eu and Ce under a gradient of temperature. Using the decision tree model, they demonstrate that ML can effectively identify experimental conditions for white phosphor designs, using Li 2 BaSiO 4 :Eu, Ce as an example.…”

Section: Introductionmentioning

confidence: 99%

Machine learning the peak emission wavelength of Mn⁴⁺-activated inorganic phosphors

Ding

Zhang

et al. 2023

New J. Chem.

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Machine learning identification of experimental conditions for the synthesis of single-phase white phosphors

Cited by 5 publications

References 37 publications

Facile Synthesis of Highly Efficient and Thermally Stable BaAl₄Sb₂O₁₂:Eu²⁺ Phosphor in Air

Facile Synthesis of Highly Efficient and Thermally Stable BaAl₄Sb₂O₁₂:Eu²⁺ Phosphor in Air

Near‐Infrared Luminescent Materials Incorporating Rare Earth/Transition Metal Ions: From Materials to Applications

Machine learning the peak emission wavelength of Mn⁴⁺-activated inorganic phosphors

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Machine learning identification of experimental conditions for the synthesis of single-phase white phosphors

Cited by 5 publications

References 37 publications

Facile Synthesis of Highly Efficient and Thermally Stable BaAl4Sb2O12:Eu2+ Phosphor in Air

Facile Synthesis of Highly Efficient and Thermally Stable BaAl4Sb2O12:Eu2+ Phosphor in Air

Near‐Infrared Luminescent Materials Incorporating Rare Earth/Transition Metal Ions: From Materials to Applications

Machine learning the peak emission wavelength of Mn4+-activated inorganic phosphors

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Facile Synthesis of Highly Efficient and Thermally Stable BaAl₄Sb₂O₁₂:Eu²⁺ Phosphor in Air

Facile Synthesis of Highly Efficient and Thermally Stable BaAl₄Sb₂O₁₂:Eu²⁺ Phosphor in Air

Machine learning the peak emission wavelength of Mn⁴⁺-activated inorganic phosphors