Single band ratiometric thermometry of K2BaCa(PO4)2:Mn5+ phosphor with near infrared excitation and emission

Journal of Luminescence, Год журнала: 2025, Номер unknown, С. 121261 - 121261

Опубликована: Апрель 1, 2025

Язык: Английский

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Downshifting Layer of Europium‐Doped NaGdF₄: From the Optimization of the Sol–Gel Process to the Luminescent Properties

Advanced Photonics Research, Год журнала: 2025, Номер unknown

Опубликована: Март 11, 2025

The key issue for a wide application of solar energy is the possibility to establish an innovative photovoltaic technology that allows more efficient conversion. In this direction, use additional layers in well‐established silicon‐based modules represents challenging strategy. context, present work devoted optimization downshifting (DS) system made NaGdF 4 matrix form thin film as host material europium‐luminescent ions. Eu‐doped fabricated through sol–gel approach starting from mixture Na(hfa)•tetraglyme, Gd(hfa) 3 •diglyme, and Eu(hfa) •diglyme ethanol solution. operative parameters are finely tuned pursue formation compact polycrystalline films. Particularly, annealing treatment, nature substrate, doping ion percentage reproducible selective beta (hexagonal) crystal structure with promising luminescent properties. Morphological, structural, compositional features deeply studied field‐emission scanning electron microscopy, X‐ray diffraction analysis, energy‐dispersive respectively. luminescence investigations confirm properties DS system.

Язык: Английский

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Disproportionation Thermochromic Response in a Luminescent Lanthanide Metal–Organic Framework

ACS Applied Optical Materials, Год журнала: 2024, Номер 2(6), С. 1217 - 1223

Опубликована: Июнь 19, 2024

Язык: Английский

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Manipulation of Multimodal and Multicolor Luminescence via Interplay of Traps and Rare Earth Emission Centers in Calcium Tungstate

Inorganic Chemistry, Год журнала: 2024, Номер 63(34), С. 15993 - 16000

Опубликована: Авг. 15, 2024

Multimodal luminescence involves color-tunable and wavelength manageable photon emissions upon variable pathways in response to different external stimuli, which provides clear visualization high-level confidentiality for information encryption technologies. Integrating multimodal into a single matrix is regarded as feasible strategy but remains big challenge. In this work, (photoluminescence, persistent luminescence, upconversion thermally stimulated luminescence) multicolor (green, yellow, orange, pink red) achieved CaWO4:Yb3+,Er3+,Eu3+ phosphor by employing an interplay of traps rare earth emission centers. Bright wide color gamut dynamically thermal disturbance light illumination, further allows on-demand manipulation space time dimensions. The compatible coexistence multiple emissive centers together with abundant photoactive contributes the excellent integration calcium tungstate. This work good example integrating one indicates potential advanced applications.

Язык: Английский

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Dramatic Impact of Materials Combinations on the Chemical Organization of Core–Shell Nanocrystals: Boosting the Tm³⁺ Emission above 1600 nm

ACS Nano, Год журнала: 2024, Номер unknown

Опубликована: Сен. 12, 2024

This article represents the first foray into investigating consequences of various material combinations on short-wave infrared (SWIR, 1000-2000 nm) performance Tm-based core-shell nanocrystals (NCs) above 1600 nm. In total, six different involving two types SWIR-emitting core NCs (α-NaTmF

Язык: Английский

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