Journal of Luminescence最新文献_第9页

Fluorescent gold nanoclusters stabilized by lysozyme: Synthesis and deposition kinetics on silica substrates 溶菌酶稳定的荧光纳米金簇：在二氧化硅基底上的合成与沉积动力学

IF 3.3 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence

Pub Date : 2024-09-24 DOI: 10.1016/j.jlumin.2024.120912

Julia Maciejewska-Prończuk , Magdalena Oćwieja , Paulina Żeliszewska , Monika Wasilewska , Ditta Ungor , Edit Csapó , Lilianna Szyk-Warszyńska , Marta Gajewska , Agnieszka Chrzanowska , Joanna Dobrzyńska , Inna Ivashchenko , Katarzyna Matras-Postołek , Zbigniew Adamczyk

Gold nanoclusters suspension were effectively synthesized under alkaline conditions in a chemical reduction process involving gold(III) chloride trihydrate and lysozyme (LYZ) molecules. Their size determined by high-resolution transmission electron microscopy (HR-TEM) was equal to 1.9 ± 0.5 nm. The nanoclusters, referred to as LYZ-Au NCs, were stable at pH below 4 and above 8, exhibiting a hydrodynamic diameter between 8 and 11 nm. The isoelectric point of LYZ-Au NCs appeared at pH 5.0. The suspension showed a pronounced fluorescence characterized by the red-emitting band at 668 nm. The deposition kinetics and stability of LYZ-Au NCs on bare and poly(diallyldimethylammonium chloride) (PDADMAC)-modified silica sensors were studied using quartz crystal microbalance (QCM). The influence of ionic strength, pH, and suspension concentration on the kinetics of LYZ-Au NCs deposition was determined. The significant increase in the maximum coverage of LYZ-Au NCs with ionic strength was attributed to the decreasing range of electrostatic interactions between deposited clusters. Atomic force microscopy (AFM) confirmed the formation of homogeneous layers of LYZ-Au NCs with controlled coverage on bare silica at pH 3.5 and PDADMAC-modified silica. It was shown by confocal microscopy investigations, that these layers also exhibited pronounced fluorescent properties.

通过三水氯化金（III）和溶菌酶（LYZ）分子的化学还原过程，在碱性条件下有效合成了纳米金簇悬浮液。经高分辨率透射电子显微镜（HR-TEM）测定，其尺寸为 1.9 ± 0.5 nm。这种被称为 LYZ-Au NCs 的纳米团簇在 pH 值低于 4 和高于 8 时都很稳定，其水动力直径在 8 到 11 nm 之间。LYZ-Au NCs 的等电点出现在 pH 值 5.0 时。悬浮液显示出明显的荧光，其特征是在 668 纳米波长处有红色发射带。使用石英晶体微天平（QCM）研究了 LYZ-Au NCs 在裸硅传感器和聚(二烯丙基二甲基氯化铵) (PDADMAC) 改性硅传感器上的沉积动力学和稳定性。确定了离子强度、pH 值和悬浮液浓度对 LYZ-Au NCs 沉积动力学的影响。随着离子强度的增加，LYZ-Au NCs 的最大覆盖率明显增加，这是因为沉积团簇之间的静电相互作用范围减小了。原子力显微镜（AFM）证实，在 pH 值为 3.5 的裸硅石和 PDADMAC 改性硅石上形成了覆盖率可控的均匀 LYZ-Au NCs 层。共聚焦显微镜研究表明，这些层还具有明显的荧光特性。

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引用次数: 0

Highly stable and self-powered ultraviolet photodetector based on Dion-Jacobson phase lead-free double perovskite 基于 Dion-Jacobson 相无铅双包晶的高稳定性自供电紫外线光电探测器

IF 3.3 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence

Pub Date : 2024-09-24 DOI: 10.1016/j.jlumin.2024.120914

Yongqiang Zhou , Lei Huang , Chunping Huang , Mengyue Wu , Weiwei Chen , Yayun Pu , Jun'an Lai , Xiaosheng Tang

Metal halide perovskite materials present a wide array of opportunities for the development of high-performance optoelectronic devices, owing to their outstanding photoelectric properties. Compared with the lead-containing perovskites, stable and non-toxic organic-inorganic hybrid perovskites exhibit enhanced potential for future commercial applications. In this work, we developed a self-powered UV photodetector based on 2D Dion−Jacobson (DJ) phase lead-free double perovskite HAAg_0.5Bi_0.5Br₄ (HA²⁺ = histammonium) perovskite with an on-off ratio up to 2.66 × 10⁶, excellent specific detectivity of 6 × 10¹² Jones, and response speed of 1.32 ms/118.4 μs. The light intensity related pyro-phototronic effect on 2D perovskite is thoroughly investigated. Temperature and light detection are realized through multi-energy coupling, which greatly improves the detection performance. Coupled pyro-phototronic current is calculated nearly 75 folds higher than that from the photoelectronic merely. As-prepared photodetector film shows excellent stability in normal environment, maintaining a value of 90 % to the initial performance after 500 cycles and 90 days. This work provides a new self-powered, stable and non-toxic candidate for the future UV photodetectors.

金属卤化物类包晶石材料具有出色的光电特性，为开发高性能光电器件提供了大量机会。与含铅类包晶石相比，稳定无毒的有机-无机混合包晶石在未来的商业应用中展现出更大的潜力。在这项工作中，我们开发了一种基于二维 Dion-Jacobson（DJ）相无铅双包晶石 HAAg0.5Bi0.5Br4（HA2+ = 组铵）包晶石的自供电紫外光光电探测器，其通断比高达 2.66 × 106，具有 6 × 1012 Jones 的优异比检测率和 1.32 ms/118.4 μs 的响应速度。我们深入研究了二维包晶上与光强相关的热释光效应。通过多能耦合实现了温度和光检测，大大提高了检测性能。计算得出的热释光耦合电流比单纯的光电子电流高出近 75 倍。所制备的光电探测器薄膜在正常环境下表现出极佳的稳定性，在经过 500 次循环和 90 天后，其性能值仍能保持在初始值的 90%。这项工作为未来的紫外线光电探测器提供了一种新的自供电、稳定且无毒的候选材料。

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引用次数: 0

Halide modulated room-temperature phosphorescence from one-dimensional metal‒organic halides for time-resolved anti-counterfeiting 一维金属有机卤化物的卤化物调制室温磷光用于时间分辨防伪

IF 3.3 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence

Pub Date : 2024-09-24 DOI: 10.1016/j.jlumin.2024.120907

Zhong Xu, Yi Shen, Yang Chen, Mengkai Zuo, Feng Hu, Mingchen Deng, Bin Wang, Hao Sun, Wei Huang, Dayu Wu

Room-temperature phosphorescence (RTP) materials have shown widespread applications in optoelectronic devices, biological imaging, molecular switches, safety systems, etc. Here, we report the design and synthesis of a series of metal‒organic halide materials with regulated phosphorescence and fluorescence dual emission properties. Their dual emission ratio and RTP lifetime can be facilely tuned by the halide substituent synthesis. Bright afterglow with various emission duration for the investigated materials can be identified by the naked eyes. DFT calculations reveal that the excited states exhibit halide‒ligand charge transfer (XLCT) character and the halide atoms play crucial role in their luminescence properties. Based on their regulatable dual emission and afterglow properties, a time-resolved anti-counterfeiting application is developed and avoids the over-dependence on equipment, which further provides feasible design strategy of advanced portable anti-counterfeiting technology.

室温磷光（RTP）材料在光电器件、生物成像、分子开关、安全系统等领域有着广泛的应用。在此，我们报告了一系列具有调节磷光和荧光双发射特性的金属有机卤化物材料的设计与合成。它们的双发射比和 RTP 寿命可通过卤化物取代基的合成进行方便地调节。肉眼可以识别所研究材料不同发射持续时间的明亮余辉。DFT 计算表明，激发态具有卤化物-配体电荷转移（XLCT）特性，卤化物原子在发光特性中起着关键作用。基于其可调节的双发射和余辉特性，开发了一种时间分辨防伪应用，避免了对设备的过度依赖，进一步为先进的便携式防伪技术提供了可行的设计策略。

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引用次数: 0

Luminescent perovskite quantum dots: Progress in fabrication, modelling and machine learning approaches for advanced photonic and quantum computing applications 发光过氧化物量子点：先进光子和量子计算应用的制造、建模和机器学习方法的进展

IF 3.3 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence

Pub Date : 2024-09-23 DOI: 10.1016/j.jlumin.2024.120906

Deepthi Jayan K., Kesiya Babu

Luminescent metal halide quantum dots (QDs), particularly perovskite quantum dots (PQDs), garnered remarkable attention for unique optical properties as well as critical use for advanced photonic and electronic devices. This comprehensive review explores the synthesis, properties, and applications of PQDs, with a focus on their role in luminescent metal halide QD devices. The review begins by discussing advanced synthesis techniques and surface engineering strategies for PQDs, highlighting recent developments in the field. Structural and optical characterization techniques are then examined, emphasizing the importance of understanding quantum confinement effects and emission mechanisms in PQDs. The review also includes a discussion on modelling and simulation, discussing computational methods for predicting and optimizing PQD properties. Experimental studies and device fabrication techniques are discussed in detail, showcasing the progress made in integrating PQDs into optoelectronic devices. Advanced applications of PQDs in light-emitting devices, solar cells, sensors, and photodetectors are explored, highlighting their potential for efficiency enhancements and novel functionalities. A detailed discussion on the emerging role of machine learning (ML) in PQD research, focusing on its applications in materials discovery and device optimization are also included. This review explores the potential of luminescent PQDs for quantum computing applications, focusing on their role as qubits, quantum gates, and quantum memory devices, emphasizing the latest advancements, challenges, and future prospects of integrating PQDs into quantum computing architectures. The review concludes with an overview of emerging trends and future directions in the field, emphasizing the need for continued research to unlock the full potential of PQDs in advanced photonic and electronic devices.

发光金属卤化物量子点（QDs），尤其是过氧化物量子点（PQDs），因其独特的光学特性以及在先进光子和电子设备中的重要应用而备受关注。这篇综述探讨了 PQDs 的合成、特性和应用，重点是它们在发光金属卤化物 QD 器件中的作用。综述首先讨论了 PQDs 的先进合成技术和表面工程策略，重点介绍了该领域的最新进展。然后研究了结构和光学表征技术，强调了了解 PQDs 中量子约束效应和发射机制的重要性。综述还包括对建模和模拟的讨论，讨论了预测和优化 PQD 特性的计算方法。书中详细讨论了实验研究和器件制造技术，展示了在将 PQDs 集成到光电器件方面取得的进展。还探讨了 PQDs 在发光器件、太阳能电池、传感器和光电探测器中的先进应用，强调了它们在提高效率和新功能方面的潜力。此外，还详细讨论了机器学习（ML）在 PQD 研究中的新兴作用，重点关注其在材料发现和器件优化中的应用。本综述探讨了发光 PQD 在量子计算应用中的潜力，重点关注其作为量子比特、量子门和量子存储器件的作用，强调了将 PQD 集成到量子计算架构中的最新进展、挑战和未来前景。综述最后概述了该领域的新兴趋势和未来发展方向，强调需要继续开展研究，以释放 PQDs 在先进光子和电子设备中的全部潜力。

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引用次数: 0

Dual-color emitting in rare-earth based double perovskites Cs2NaLuCl6: Sb3+, Tb3+ for warm WLED and anti-counterfeiting 稀土基双过氧化物 Cs2NaLuCl6 中的双色发光：Sb3+、Tb3+ 用于暖色 WLED 和防伪

IF 3.3 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence

Pub Date : 2024-09-23 DOI: 10.1016/j.jlumin.2024.120909

Yiying Zhu, Yining Wang, Yixin Sun, Zheng Xu, Mengmeng Shang

Lead-free double perovskites (LFDPs) usually exhibit poor luminescent performance, and doping lanthanide ions (Ln³⁺) presents a promising solution to solve this problem. However, most Ln³⁺ ions face difficulties in incorporating into LFDPs due to the mismatch in radius or valence state. Here, we successfully synthesized rare-earth (RE³⁺) based Cs₂NaLuCl₆ (CNLC) LFDPs and achieved efficient green emission through doping Tb³⁺ into CNLC. Introducing Sb³⁺ improves the absorption efficiency of CNLC: Tb³⁺ from 25.1 % to 73.5 % by establishing an energy transfer channel from Sb³⁺ to Tb³⁺. Benefiting from the energy transfer, the CNLC: 0.01Sb³⁺, 0.10Tb³⁺ phosphor produces blue-green dual emissions, highlighting its potential in white light-emitting diodes (WLEDs). In addition, an anti-counterfeiting pattern composed of CNLC: Sb³⁺, CNLC: Tb³⁺, and CNLC: Sb³⁺, Tb³⁺ samples was fabricated, which shows their promising prospect in anti-counterfeiting applications.

无铅双包晶石（LFDPs）的发光性能通常较差，而掺杂镧系离子（Ln3+）则是解决这一问题的可行方案。然而，由于半径或价态不匹配，大多数 Ln3+ 离子很难掺入 LFDPs 中。在此，我们成功合成了基于稀土（RE3+）的 Cs2NaLuCl6（CNLC）LFDPs，并通过在 CNLC 中掺杂 Tb3+ 实现了高效的绿色发射。通过建立从 Sb3+ 到 Tb3+ 的能量转移通道，Sb3+ 的引入将 CNLC: Tb3+ 的吸收效率从 25.1% 提高到 73.5%。得益于能量转移，CNLC: 0.01Sb3+, 0.10Tb3+ 荧光粉产生了蓝绿双发射，突出了其在白光发光二极管（WLED）中的应用潜力。此外，还制作出了由 CNLC：Sb3+、CNLC：Tb3+ 和 CNLC：Sb3+、Tb3+ 样品组成的防伪图案，显示了它们在防伪应用中的广阔前景。

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引用次数: 0

Comparative investigation of structural, morphological and temperature-dependent photoluminescence characteristics of trivalent rare-earth-activated NaCaPO4 phosphors for solid-state lighting applications 用于固态照明应用的三价稀土活化 NaCaPO4 荧光粉的结构、形态和温度依赖性光致发光特性的比较研究

IF 3.3 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence

Pub Date : 2024-09-23 DOI: 10.1016/j.jlumin.2024.120901

Mudasir Farooq , Haqnawaz Rafiq , Irfan Nazir , Ab Mateen Tantray , Hameed Younis , Mir Hashim Rasool

This study explores the synthesis, structure, morphology, and photoluminescence features of trivalent RE³⁺-activated NaCaPO₄ phosphors, aiming to develop phosphor materials for white-light-emitting diode (WLED) applications. Single-phase polycrystalline NaCa_(1-x) RE_x³⁺ PO₄ (RE_x³⁺ = Sm, Eu, Dy, and Tb) phosphor materials with various RE_x³⁺-doping percentiles were produced by a solid-state reaction process, which were analyzed using various characterization techniques. The FullProf Suite software program was used for phase evidence and crystalline structure analysis, confirming the composition of orthorhombic materials as a single phase. FE-SEM micrographs revealed asymmetrically stacked morphologies across all the compositions. This study reveals that trivalent RE³⁺-activated phosphors produced exceptional PL outcomes. Dexter's and Blasse's approaches were used to establish the interaction mechanisms and critical energy transfer ranges as dipole-dipole. Lifetime decay patterns were used to fit a bi-exponential function and the resulting values were approximated in milliseconds. This study reveals that trivalent RE³⁺-activated NaCaPO₄ phosphors, with their thermal resilience and color integrity, have potential applications in solid-state lighting (SSL) technology.

本研究探讨了三价 RE3+ 活化 NaCaPO4 荧光粉的合成、结构、形态和光致发光特性，旨在开发白光发光二极管（WLED）用荧光粉材料。采用固态反应工艺制备了具有不同 REx3+ 掺杂百分位数的单相多晶 NaCa(1-x) REx3+ PO4（REx3+ = Sm、Eu、Dy 和 Tb）荧光粉材料，并使用各种表征技术对其进行了分析。使用 FullProf Suite 软件程序进行了相证和晶体结构分析，确认了正交材料作为单相的组成。FE-SEM 显微照片显示了所有成分的不对称堆叠形态。这项研究表明，三价 RE3+ 激活的荧光粉能产生优异的聚光效果。利用 Dexter 和 Blasse 方法建立了相互作用机制和偶极-偶极临界能量转移范围。寿命衰减模式被用来拟合双指数函数，得出的数值以毫秒为近似单位。这项研究表明，三价 RE3+ 激活的 NaCaPO4 荧光粉具有热弹性和色彩完整性，在固态照明 (SSL) 技术中具有潜在的应用价值。

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引用次数: 0

Multicolor and multimode luminescent lanthanide-doped Cs2NaInCl6:Sb3+ from visible to near infrared for versatile applications 掺杂镧系元素的 Cs2NaInCl6:Sb3+ 从可见光到近红外的多色多模发光，可用于多种应用领域

IF 3.3 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence

Pub Date : 2024-09-22 DOI: 10.1016/j.jlumin.2024.120908

Xiaowei Deng , Xu Chen , Meng Wang , Weilong Qin , Gaoqiang Li , Jiaqiong Qin , Yanbing Han , Mochen Jia , Xinjian Li , Zhifeng Shi

Double halide perovskites have shown admirable potential in promising optoelectronic applications due to simple synthesis, good stability and high structural tolerance. However, the poor optical properties caused by the parity-forbidden transitions posts a stringent limitation on their potential applications. Herein, we dope the lanthanide (Ln³⁺) ions with abundant energy levels into the Cs₂NaInCl₆:Sb³⁺ single crystals, which not only achieve multicolor visible emissions spectra from blue to red light, but also expand to the near infrared region from 800 to 1900 nm. In addition, the phosphors enable the multimode emissions with the up-conversion and down-conversion photoluminescence. Intriguingly, the excitation source, and the excitation light intensity also endow the multicolor emissions. Thus, combining with the multicolor and multimode luminescent properties, Cs₂NaInCl₆:Sb³⁺/Ln³⁺ could be applied to night vision imaging, substance detection, optical thermometry, white-light-emitting diodes (WLEDs) and anti-counterfeiting. The maximum value of relative temperature sensitivity reaches as high as 1.207 % K⁻¹, which is relatively higher than those of most metal halide perovskites. Moreover, the single-source WLED displays Commission Internationale de L'Eclairage color coordinates (0.32, 0.31), a correlated color temperature of 6673 K, and color rendering index of 81.7. These results demonstrate the potential applications in the multifunctional photoelectric applications.

双卤化物过氧化物晶石具有合成简单、稳定性好和结构容差大等优点，在光电应用领域显示出令人钦佩的潜力。然而，由于奇偶禁止跃迁而导致的不良光学特性对其潜在应用造成了严格限制。在此，我们将能级丰富的镧系（Ln3+）离子掺杂到 Cs2NaInCl6:Sb3+ 单晶中，不仅实现了从蓝光到红光的多色可见光发射光谱，而且还扩展到了从 800 纳米到 1900 纳米的近红外区域。此外，这种荧光粉还能实现上转换和下转换光致发光的多模发射。有趣的是，激发光源和激发光强度也赋予了多色发射。因此，结合多色和多模发光特性，Cs2NaInCl6:Sb3+/Ln3+ 可应用于夜视成像、物质检测、光学测温、白光发光二极管（WLED）和防伪。相对温度灵敏度的最大值高达 1.207 % K-1，相对高于大多数金属卤化物类包晶石。此外，单源 WLED 显示出国际照明委员会的色坐标（0.32，0.31），相关色温为 6673 K，显色指数为 81.7。这些结果表明了其在多功能光电应用领域的潜在应用前景。

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引用次数: 0

CsPbBr3 perovskite thin film as a saturable absorber for MIR passively Q-switched lasers 用作中红外被动 Q 开关激光器可饱和吸收体的铯硼硼 3 包晶薄膜

IF 3.3 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence

Pub Date : 2024-09-21 DOI: 10.1016/j.jlumin.2024.120910

Mingchao Shao , Xiaoyue Feng , Beilei Yuan , Jiahao Dong , Wenxin Li , Jie liu , Jingjing Liu , Bingqiang Cao , Jun Xu

Saturable absorbers (SAs) are key devices for passive Q-switching. All-inorganic halide perovskites demonstrate superior stability compared to their organic-inorganic hybrid counterparts, making them more promising candidates as SAs. A high-quality, all-inorganic halide perovskite CsPbBr₃, designed for mid-infrared (MIR) broadband saturable absorption, has been successfully fabricated. The saturable absorption properties of this material within the MIR region have been thoroughly characterized. Characterization outcomes reveal that CsPbBr₃ possesses outstanding broadband saturable absorption characteristics. For the first time, passive Q-switching operation has been successfully achieved in the MIR region, specifically at wavelengths of 1.9 μm and 2.8 μm, utilizing the CsPbBr₃ SA. Peak powers of 5.57 W at the 1.9 μm wavelength and 5.23 W at the 2.8 μm wavelength were achieved. The experimental results indicate that CsPbBr₃ is an efficient SA material, holding significant promise for the development of pulsed lasers with broad bandwidth and high energy outputs.

可饱和吸收体（SA）是无源 Q 开关的关键器件。与有机无机杂化的同类产品相比，全无机卤化物包光体具有更高的稳定性，因此更有希望成为可饱和吸收体。目前已成功制备出一种用于中红外（MIR）宽带可饱和吸收的高质量全无机卤化物包晶 CsPbBr3。对这种材料在中红外区域的可饱和吸收特性进行了全面表征。表征结果表明，CsPbBr3 具有出色的宽带可饱和吸收特性。利用 CsPbBr3 SA，我们首次在中红外区域成功实现了无源 Q 开关操作，特别是在 1.9 μm 和 2.8 μm 波长处。在 1.9 μm 波长和 2.8 μm 波长分别实现了 5.57 W 和 5.23 W 的峰值功率。实验结果表明，CsPbBr3 是一种高效的 SA 材料，有望开发出具有宽带宽和高能量输出的脉冲激光器。

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引用次数: 0

Improving the thermal stability and luminescence of Sr3Ga1.98In0.02Ge4O14:0.03Cr3+ through the efficient energy transfer 通过高效能量转移提高 Sr3Ga1.98In0.02Ge4O14:0.03Cr3+ 的热稳定性和发光性能

IF 3.3 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence

Pub Date : 2024-09-21 DOI: 10.1016/j.jlumin.2024.120911

Haonan Huang, Jiayue Zhang, Bingkai Gao, Runqiu Peng, Zhijun Wang, Jiehong Li, Panlai Li

In this work, in order to explore the near-infrared (NIR) phosphor converted light emitting diodes (pc-LEDs), the NIR phosphor Sr₃Ga_1.98In_0.02Ge₄O₁₄:0.03Cr³⁺, 0.05 Yb³⁺ was achieved by the high temperature solid-state method, which presents a broadband emission with a large full width at half maximum (FWHM) of 291 nm due to the energy transfer from Cr³⁺ to Yb³⁺. The emission intensity (at 423 K) of Sr₃Ga_1.98In_0.02Ge₄O₁₄:0.03Cr³⁺, 0.05 Yb³⁺ can be maintained at 77 % of room temperature, which is 14 % higher than that before co-doping, indicating that this phosphor has better thermal stability. The NIR pc-LEDs can be fabricated by combining the phosphor Sr₃Ga_1.98In_0.02Ge₄O₁₄:0.03Cr³⁺, 0.05 Yb³⁺ with the blue LED, which can be applied in night vision. The results demonstrated its potential application value.

在这项工作中，为了探索近红外荧光粉转换发光二极管（pc-LEDs），采用高温固态方法实现了近红外荧光粉 Sr3Ga1.98In0.02Ge4O14:0.03Cr3+, 0.05 Yb3+，由于从 Cr3+ 到 Yb3+ 的能量转移，该荧光粉呈现出宽带发射，半最大全宽（FWHM）达到 291 nm。Sr3Ga1.98In0.02Ge4O14:0.03Cr3+, 0.05Yb3+ 的发射强度（423 K 时）可保持在室温的 77%，比未共掺杂之前高出 14%，表明这种荧光粉具有更好的热稳定性。通过将 Sr3Ga1.98In0.02Ge4O14:0.03Cr3+, 0.05 Yb3+ 荧光粉与蓝光 LED 结合，可以制造出近红外 pc-LED，应用于夜视领域。结果证明了其潜在的应用价值。

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引用次数: 0

Fluorinated triphenylamine phthalocyanine @ silica-coated gold nanorods: A photoactivated lysosome escape and targeting mitochondria two-photon probe for imaging-guided photothermal synergistic photodynamic therapy in cancer cells 氟化三苯胺酞菁@二氧化硅涂层金纳米棒：一种光激活溶酶体逃逸和靶向线粒体的双光子探针，用于对癌细胞进行成像引导的光热协同光动力治疗

IF 3.3 3区物理与天体物理 Q2 OPTICS

Journal of Luminescence

Pub Date : 2024-09-21 DOI: 10.1016/j.jlumin.2024.120900

Yating Shen , Junwen Zhou , Guizhi Chen , Jingtang Wang , Qiuhao Ye , Kuizhi Chen , Liting Qiu , Linying Chen , Yiru Peng

The timely evasion of nanomedicines from lysosomes is essential to avert premature degradation under the acidic and hydrolytic conditions characteristic of these cellular compartments. However, the development of effective strategies has been hindered by the complexity of design material and the scarcity of practical methods. In this study, we have synthesized a novel nanoparticle, designated as TPA-BPAF-SiPc@AuNR@SiO₂. This nanoparticle was prepared by encapsulating near-infrared fluorinated triphenylamine-substituted silicon phthalocyanines (TPA-BPAF-SiPc) within mesoporous silica-coated gold nanorods (AuNR@SiO₂). TPA-BPAF-SiPc@AuNR@SiO₂ functions as a dual-function two-photon probe, facilitating photoactivated lysosome escape and targeting mitochondria. The inherent aggregation-induced emission (AIE) two-photon fluorescence of TPA-BPAF-SiPc is notably bright when encapsulated in AuNR@SiO₂ nanocarriers, a phenomenon not observed in polymer nanocarriers composed of 1,2-distearoyl-sn-glycero-3-phosphoethanolamine-N-[methoxy(polyethylene glycol)-2000] (DSPE-PEG₂₀₀₀) or in THF/water mixtures. Upon irradiation, this nanoparticle autonomously escapes from lysosomes and selectively targets mitochondria, a process can be visually monitored in real-time through the two-photon AIE fluorescence of TPA-BPAF-SiPc. Moreover, upon activation, TPA-BPAF-SiPc@AuNR@SiO₂ produces a substantial quantity of reactive oxygen species (ROS) and induces hyperthermia effects, showcasing its potential for effective photodynamic therapy (PDT) in conjunction with synergistic hyperthermia. Flow cytometry data corroborate the induction of tumor cell death through both necrosis and apoptosis pathways by TPA-BPAF-SiPc@AuNR@SiO₂. This study underscores the potential of TPA-BPAF-SiPc@AuNR@SiO₂ as a multifunctional probe capable of enabling lysosome escape, mitochondria targeting, and two-photon fluorescence imaging-guided photothermal synergistic photodynamic therapy, specifically tailored for the treatment of breast cancer.

要避免纳米药物在细胞溶酶体特有的酸性和水解条件下过早降解，就必须及时避免纳米药物进入溶酶体。然而，设计材料的复杂性和实用方法的匮乏阻碍了有效策略的开发。在本研究中，我们合成了一种新型纳米粒子，命名为 TPA-BPAF-SiPc@AuNR@SiO2。这种纳米粒子是通过将近红外氟化三苯胺取代硅酞菁（TPA-BPAF-SiPc）封装在介孔二氧化硅包覆金纳米棒（AuNR@SiO2）中制备而成的。TPA-BPAF-SiPc@AuNR@SiO2 具有双光子探针的双重功能，既能促进光激活的溶酶体逃逸，又能靶向线粒体。当 TPA-BPAF-SiPc 被封装在 AuNR@SiO2 纳米载体中时，其固有的聚集诱导发射（AIE）双光子荧光非常明亮，而在由 1,2-二硬脂酰-sn-甘油-3-磷脂乙醇胺-N-[甲氧基（聚乙二醇）-2000]（DSPE-PEG2000）组成的聚合物纳米载体或在 THF/ 水混合物中却观察不到这种现象。照射时，这种纳米粒子会自主脱离溶酶体，并选择性地靶向线粒体，这一过程可通过 TPA-BPAF-SiPc 的双光子 AIE 荧光进行实时可视化监测。此外，TPA-BPAF-SiPc@AuNR@SiO2 被激活后会产生大量活性氧（ROS）并诱导热效应，从而展示了其在协同热效应的同时进行有效光动力疗法（PDT）的潜力。流式细胞仪数据证实了 TPA-BPAF-SiPc@AuNR@SiO2 通过坏死和凋亡两种途径诱导肿瘤细胞死亡。这项研究强调了 TPA-BPAF-SiPc@AuNR@SiO2 作为一种多功能探针的潜力，它能够实现溶酶体逃逸、线粒体靶向和双光子荧光成像引导的光热协同光动力疗法，特别适用于乳腺癌的治疗。

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