Charge carrier trapping management in Bi3+ and lanthanides doped Li(Sc,Lu)GeO4 for x-ray imaging, anti-counterfeiting, and force recording

Applied Physics Reviews, Journal Year: 2024, Volume and Issue: 11(1)

Published: Feb. 21, 2024

Discovering energy storage materials with rationally controlled trapping and de-trapping of electrons holes upon x-rays, UV-light, or mechanical force stimulation is challenging. Such enable promising applications in various fields, for instance multimode anti-counterfeiting, x-ray imaging, non-real-time recording. In this work, photoluminescence spectroscopy, the refined chemical shift model, thermoluminescence studies will be combined to establish vacuum referred binding (VRBE) diagrams LiSc1−xLuxGeO4 family compounds containing level locations Bi2+, Bi3+, lanthanides. The established VRBE are used develop Bi3+ lanthanides doped phosphors understand processes charge carriers physical excitation means. intensity irradiated LiSc0.25Lu0.75GeO4:0.001Bi3+,0.001Eu3+ about two times higher than that state-of-the-art phosphor BaFBr(I):Eu2+. Particularly, a induced carrier phenomenon appears Eu3+ co-doped LiSc1−xLuxGeO4. Proof-of-concept recording, imaging demonstrated. This work not only deepens our understanding capturing sources, but can also trigger scientists discover new by exploiting VRBEs bismuth lanthanide levels.

Language: Английский

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Deep-trap ultraviolet persistent phosphor for advanced optical storage application in bright environments

Light Science & Applications, Journal Year: 2024, Volume and Issue: 13(1)

Published: Sept. 14, 2024

Language: Английский

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Liquid nitrogen temperature to 700 K Bi3+ thermoluminescence: Toward wide-temperature-range light dosimeters for versatile anti-counterfeiting, information storage, and x-ray imaging

Applied Physics Reviews, Journal Year: 2024, Volume and Issue: 11(4)

Published: Oct. 31, 2024

Discovering light dosimeters that can function effectively from liquid nitrogen temperature to 700 K presents significant challenges. Such facilitate a range of cutting-edge applications, including anti-counterfeiting measures at low for cryo-preservation. To such discovery, stacked vacuum referred binding energy diagrams the LiYGeO4 cluster crystals have been first constructed. They offer robust method controlling both electron and hole trapping depth in crystals. Wide shifting Bi2+ Eu2+ thermoluminescence (TL) glow bands emerges 200 500 LiYxLu1-xGeO4:0.01Bi3+ LiYxLu1-xGeO4:0.01Bi3+, 0.001Eu3+, by changing x, facilitating conduction band tailoring. Bi4+ TL 300 LiYGezSi1-zO4:0.01Bi3+, tuning z, valence peaks near 135, 185, 232, 311 emerge LiyNa1-yYGeO4: 0.001Bi3+. Particularly, discovered Bi3+ or/and lanthanide modified exhibit superior charge carrier storage capacity minimal fading properties. For instance, ratio intensity optimized LiYGe0.75Si0.25O4:0.001Bi3+ industrial BaFBr(I):Eu2+ is as high ∼4. Interestingly, imaging intense optically driven ultraviolet-A (UVA) luminescence has validated 254 nm energized LiY0.25Lu0.75GeO4:0.01Bi3+ with 100 lux white LED illumination. Together ZnS:Mn2+, LiTaO3:Bi3+, Sm3+, Cs2ZrCl6:Sb3+ perovskites, realization wide offers promising use versatile anti-counterfeiting, information storage, delayed x-ray purposes.

Language: Английский

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Broadband yellow-emitting LuMgGaO4:Bi3+ phosphor utilizing Bi3+ pairs for full-spectrum WLEDs

Ceramics International, Journal Year: 2024, Volume and Issue: 50(9), P. 16292 - 16300

Published: Feb. 9, 2024

Language: Английский

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Realization of Antithermal Quenching of Eu³⁺ for High‐Sensitivity Luminescence Thermometry via an Indirect Energy Transfer Route

Advanced Optical Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 20, 2025

Abstract Luminescence intensity decreasing with rising temperature is a common phenomenon called thermal quenching. However, the Bi 3+ ‐Eu co‐doped NaGd 2 Ga 3 Ge O 12 (NGGG) phosphor exhibits antithermal quenching luminescence of Eu . has pair thermally coupled energy levels (TCLs), where higher level P 1 and lower derived from metal‐to‐metal charge‐transfer (MMCT). As concentration increases, lifetime decreases, while MMCT remains unchanged. It means that transfer (ET) only happens between Interestingly, excited, emission still observed. This because when exciting level, as upper TCLs, can also be which consequently leads to Accordingly, ⁺ will increased show coupling process enhanced temperature. Taking advantage unique ET ⁺, ⁺‐Eu NGGG demonstrates sensitivity 2.08% K − ¹ at 500 K, distinct most fluorescence thermometers maximum low temperatures.

Language: Английский

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Bi3+-Activated Na3Ca2TaO6: A Novel Narrow-Band Blue-Emitting Phosphor Towards Backlight Display Applications

Journal of Luminescence, Journal Year: 2024, Volume and Issue: 275, P. 120765 - 120765

Published: Nov. 1, 2024

Language: Английский

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Blue-emitting Bi3+-doped K2MGeO5 (M = Hf, Zr) phosphors for full-spectrum WLED: Crystal structure, electronic structure and luminescent properties

Journal of Luminescence, Journal Year: 2024, Volume and Issue: 269, P. 120461 - 120461

Published: Jan. 13, 2024

Language: Английский

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Tunable emission from solid-solution phosphors Ba3(Sb,Ta)Ga3Si2O14:Bi3+,Eu3+ for diverse optical applications

Materials Today Chemistry, Journal Year: 2025, Volume and Issue: 44, P. 102524 - 102524

Published: Jan. 19, 2025

Language: Английский

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Bi3+ doped Sr3Y2(BO3)4 phosphors for full-spectrum WLEDs and temperature sensing

Ceramics International, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

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Unraveling the origin of broadband yellow emission in Bi³⁺-doped LuXnGaO₄ (Xn = Mg, Zn) phosphors

Dalton Transactions, Journal Year: 2024, Volume and Issue: 53(8), P. 3589 - 3598

Published: Jan. 1, 2024

A combined experimental and theoretical approach was utilized to elucidate the origin of extra-ionic electronic transition in LuXnGaO 4 :Bi 3+ phosphors.

Language: Английский

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