用于 W-LED 和室内植物生长 LED 的 Sm3+/Eu3+ 共掺杂 Sr3NaSbO6 纳米棒状红色荧光粉的光致发光研究

IF 4.1 3区化学 Q2 CHEMISTRY, PHYSICAL

Journal of Photochemistry and Photobiology A-chemistry Pub Date : 2024-10-09 DOI:10.1016/j.jphotochem.2024.116070

Twinkle Anna Jose, Jeena Rose Jose, M.S. Amogh, Cyriac Joseph, P.R. Biju

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引用次数: 0

摘要

红色荧光粉在白光发光二极管（W-LED）中发挥着重要作用。在此，我们报告了红色发光 Sr(3-x-y)NaSbO6: xSm3+/yEu3+ (SNSO: xSm; yEu) 荧光体的结构和发光特性。在 350 nm 的激发下，由于 SNSO 主发射，荧光粉发出强烈的红色发射，峰值约为 689 nm。优化的单掺杂 SNSO: 0.1Sm 和 SNSO: 0.2Eu 荧光粉在 405 和 305 纳米激发下分别发出强烈的橙红色和红色辐射。对于共掺杂的 SNSO: 0.1Sm; yEu 荧光体（y = 0.1、0.15、0.2、0.25 和 0.3 mol），则存在主离子、Sm3+ 离子和 Eu3+ 离子的发射峰。从宿主到 Sm3+/ Eu3+ 离子以及从 Sm3+ 到 Eu3+ 离子的能量转移分别是通过偶极-四极相互作用和四极-四极相互作用进行的。有效的红色调谐、高色纯度和温暖的 CCT 值表明，制备的纳米棒荧光粉适用于 W-LED 和室内植物生长 LED。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Photoluminescence investigations on Sm3+/Eu3+ co-doped Sr3NaSbO6 nanorod-shaped red phosphor for W-LEDs and indoor plant growth LEDs

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Photoluminescence investigations on Sm3+/Eu3+ co-doped Sr3NaSbO6 nanorod-shaped red phosphor for W-LEDs and indoor plant growth LEDs

Red phosphors have garnered an important role in white light-emitting diodes (W-LEDs). Herein we report the structural and luminescent properties of red-emitting Sr_(3-x-y)NaSbO₆: xSm³⁺/yEu³⁺ (SNSO: xSm; yEu) phosphors. Under 350 nm excitation, phosphors emit intense red emission peaking around 689 nm owing to the SNSO host emission. Optimized singly doped SNSO: 0.1Sm and SNSO: 0.2Eu phosphors have intense orange-red and red emissions under 405 and 305 nm excitations respectively. For the codoped SNSO: 0.1Sm; yEu phosphors (y = 0.1, 0.15, 0.2, 0.25, and 0.3 mol), the emission peaks of the host, Sm³⁺, and Eu³⁺ ions were present. The energy transfer from the host to Sm³⁺/ Eu³⁺ ions and from Sm³⁺ to Eu³⁺ ions was identified to be via dipole-quadrupole and quadrupole–quadrupole interactions respectively. Effective red tuning along with high color purity and warm CCT values suggest the suitability of prepared nanorod phosphors for W-LEDs and indoor plant growth LEDs.

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来源期刊

Journal of Photochemistry and Photobiology A-chemistry 化学-物理化学

CiteScore

7.90

自引率

7.00%

发文量

580

审稿时长

48 days

期刊介绍： JPPA publishes the results of fundamental studies on all aspects of chemical phenomena induced by interactions between light and molecules/matter of all kinds. All systems capable of being described at the molecular or integrated multimolecular level are appropriate for the journal. This includes all molecular chemical species as well as biomolecular, supramolecular, polymer and other macromolecular systems, as well as solid state photochemistry. In addition, the journal publishes studies of semiconductor and other photoactive organic and inorganic materials, photocatalysis (organic, inorganic, supramolecular and superconductor). The scope includes condensed and gas phase photochemistry, as well as synchrotron radiation chemistry. A broad range of processes and techniques in photochemistry are covered such as light induced energy, electron and proton transfer; nonlinear photochemical behavior; mechanistic investigation of photochemical reactions and identification of the products of photochemical reactions; quantum yield determinations and measurements of rate constants for primary and secondary photochemical processes; steady-state and time-resolved emission, ultrafast spectroscopic methods, single molecule spectroscopy, time resolved X-ray diffraction, luminescence microscopy, and scattering spectroscopy applied to photochemistry. Papers in emerging and applied areas such as luminescent sensors, electroluminescence, solar energy conversion, atmospheric photochemistry, environmental remediation, and related photocatalytic chemistry are also welcome.