Laser & Photonics Reviews最新文献_第2页

NIR‐II Light Field Microscopy for Through‐Skull Hemodynamic Volumetric Imaging in Awake Mice 近红外- II光场显微镜用于清醒小鼠颅骨血流动力学体积成像

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-04-29 DOI: 10.1002/lpor.202401685

Beibei Gao, Lu Gao, Jing Wang, Xiaoyu Huang, Wei Ge, Shuxian Li, Fu Wang

{"title":"NIR‐II Light Field Microscopy for Through‐Skull Hemodynamic Volumetric Imaging in Awake Mice","authors":"Beibei Gao, Lu Gao, Jing Wang, Xiaoyu Huang, Wei Ge, Shuxian Li, Fu Wang","doi":"10.1002/lpor.202401685","DOIUrl":"https://doi.org/10.1002/lpor.202401685","url":null,"abstract":"Non‐invasive, dynamic monitoring of cerebral blood flow in awake animals is essential to a comprehensive understanding of the hemodynamics associated with natural sensorimotor activities. This requires both high imaging speed and deep tissue penetration for microscopy. Current second near‐infrared window (NIR‐II, 1000–1700 nm) fluorescence microscopy techniques, including multi‐photon microscopy and light‐sheet microscopy, offer greater imaging depth due to low scattering properties, but are still limited by their imaging speed. In contrast, light‐field microscopy (LFM) enables 3D image reconstruction from a single‐shot, facilitating high‐speed volumetric imaging but with limited depth penetration. Here, a NIR‐II light field microscopy (NIR‐II LFM) system is developed for real‐time 3D monitoring of cerebral blood vessels in awake mice, combined with skull‐clearing treatment. With high speed and reduced light scattering, the system achieves volumetric vessel imaging, monitors blood flow dynamics, and performs 3D cerebral hemodynamic analysis. Additionally, in an acute pathology model, the system enables real‐time observation of cerebral thrombus formation in the cortex through the skull in awake mice. As a novel optical approach, NIR‐II LFM not only facilitates dynamic 3D imaging of cerebral vasculature in vivo but also demonstrates unique advantages in studying acute vascular pathologies and beyond.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"35 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143884788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cationic Substituent Engineering to Enhance Glassy Stability of Manganese Halide Scintillators for Advanced 3D X‐ray Reconstruction 阳离子取代工程提高卤化锰闪烁体的玻璃稳定性，用于先进的3D X射线重建

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-04-29 DOI: 10.1002/lpor.202500657

Zijian Zhou, Yu Xue, Ruichao Hu, Guanyu Yan, Yongjing Deng, Shujuan Liu, Feng Wang, Qiang Zhao

{"title":"Cationic Substituent Engineering to Enhance Glassy Stability of Manganese Halide Scintillators for Advanced 3D X‐ray Reconstruction","authors":"Zijian Zhou, Yu Xue, Ruichao Hu, Guanyu Yan, Yongjing Deng, Shujuan Liu, Feng Wang, Qiang Zhao","doi":"10.1002/lpor.202500657","DOIUrl":"https://doi.org/10.1002/lpor.202500657","url":null,"abstract":"Organic–inorganic hybrid manganese(II) halide glasses exhibit advantages such as exceptional optical transparency, straightforward preparation processes, and potential for large‐scale production. However, the crystallization phenomenon easily occurring in this glass material can induce a marked reduction in transparency, which significantly compromises its X‐ray imaging performance. Herein, a cationic substituent regulation strategy is developed to improve the glassy stability of manganese(II) halides. By replacing the phenyl group in Ph‐Mn cation with methylcyclohexyl substituent, a novel manganese(II) halide MCy‐Mn is successfully synthesized. Such a substitution strategy can effectively weaken both the cation–anion interactions and π–π stacking interactions within the manganese(II) halide lattice, resulting in a remarkable reduction in melting point (Tm). Moreover, the inherent rigid structure of MCy‐Mn also confers an elevated glass transition temperature (Tg). Consequently, the resultant MCy‐Mn crystal demonstrates a high Tg/Tm ratio of 0.82. Besides, the fabricated MCy‐Mn scintillation glass exhibits a high spatial resolution of 19.3 lp mm−1 and has successfully achieved 3D X‐ray reconstruction. As anticipated, MCy‐Mn glass exhibits outstanding environmental stability, with no crystallization observed after being exposed to atmospheric conditions for 30 days. This work provides valuable insights for the development of high‐stability metal halide scintillation glasses.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"222 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143884814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multi‐Octave All‐Dielectric Directional Coupler Using Integrated Half‐Mirror for Ultrawideband Terahertz Systems 用于超宽带太赫兹系统的集成半镜多倍程全介质定向耦合器

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-04-29 DOI: 10.1002/lpor.202401644

Daniel Headland, Daniel C. Gallego, Masoud Sakaki, Niels Benson, Guillermo Carpintero

引用次数: 0

On‐Chip Brillouin Amplifier in Suspended Lithium Niobate Nanowaveguides 悬浮铌酸锂纳米波导中的片上布里渊放大器

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-04-29 DOI: 10.1002/lpor.202500027

Simin Yu, Ruixin Zhou, Guangcanlan Yang, Qiang Zhang, Huizong Zhu, Yuanhao Yang, Xin‐Biao Xu, Baile Chen, Chang‐Ling Zou, Juanjuan Lu

{"title":"On‐Chip Brillouin Amplifier in Suspended Lithium Niobate Nanowaveguides","authors":"Simin Yu, Ruixin Zhou, Guangcanlan Yang, Qiang Zhang, Huizong Zhu, Yuanhao Yang, Xin‐Biao Xu, Baile Chen, Chang‐Ling Zou, Juanjuan Lu","doi":"10.1002/lpor.202500027","DOIUrl":"https://doi.org/10.1002/lpor.202500027","url":null,"abstract":"Thin film lithium niobate (TFLN) has emerged as a leading material platform for integrated nonlinear photonics, enabling transformative applications such as broadband Kerr soliton microcomb and high‐speed electro‐optic modulation. While stimulated Brillouin scattering has been numerically proposed in TFLN, achieving sufficient gain remains challenging due to the requirement for the simultaneous low optical and mechanical losses of the device. In this work, the angle‐dependence of Brillouin gain coefficients in x‐cut membrane‐suspended TFLN nanowaveguides is systematically characterized, taking into account the anisotropy of the photoelastic coefficients in lithium niobate. A Brillouin gain coefficient of 129.5 is reported and the Brillouin frequency tuning is further demonstrated through variations in either pump frequency or chip operating temperature. Based on the suspended TFLN nanowaveguide, by optimizing the confinement of both photonic and phononic modes, a Brillouin amplifier with a record‐high gain of 8.5 dB is achieved. This result not only validates the feasibility of strong guided Brillouin interaction using suspended TFLN nanowaveguides, but also paves the way for novel on‐chip sensing and signal processing applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"18 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143884790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Achieving Full Field‐of‐View Single‐Detector Imaging with Scattering Medium and Triple‐Cation Perovskite Photodetectors 利用散射介质和三阳离子钙钛矿光电探测器实现全视野单探测器成像

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-04-27 DOI: 10.1002/lpor.202500052

Zheng Peng, Yibo Lv, Boao Chen, Wanjun Li, Bowei Chen, Yipeng An, Yong Fu, Wenjie Mai, Chuanxi Zhao

{"title":"Achieving Full Field‐of‐View Single‐Detector Imaging with Scattering Medium and Triple‐Cation Perovskite Photodetectors","authors":"Zheng Peng, Yibo Lv, Boao Chen, Wanjun Li, Bowei Chen, Yipeng An, Yong Fu, Wenjie Mai, Chuanxi Zhao","doi":"10.1002/lpor.202500052","DOIUrl":"https://doi.org/10.1002/lpor.202500052","url":null,"abstract":"A broad field‐of‐view (FOV) is essential for imaging, enabling the capture of larger scenes and finer details. Herein, Fourier single‐detector (FSI) imaging through an aperture obstacle is explored and FOV expansion with the aid of ground glass is demonstrated. The dual light‐blocking effects of the aperture obstacle and ground glass necessitate a high‐performance, ultralow‐noise detector for weak‐light imaging. Through precise interfacial engineering, a triple‐cation perovskite photodetector is developed, achieving an ultralow noise current density (2.26 × 10−13 A Hz−1/2), a high on/off ratio (1.58 × 107), and a fast response (1.83 µs), enabling effective FSI in scattering medium. The principle behind the broadened FOV is elucidated through geometric optics, the “scattering lens” effect and differential imaging. The dependence of FOV on the distance between the ground glass and the aperture obstacle is further investigated. Notably, full FOV reconstruction is achieved when the ground glass is placed directly behind the obstacle. This research offers new insights into the scattering lens effect in FSI, overcoming the bottleneck of traditional imaging techniques in achieving wide‐view imaging through aperture obstacles. This work offers a promising approach to wide‐field imaging in complex environments, enhancing potential application of FSI under scattering conditions.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"24 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modeling and Analysis of Exciton Dynamics on “Hot Exciton” Process in Blue Fluorescent Organic Light‐Emitting Diodes 蓝色荧光有机发光二极管“热激子”过程激子动力学建模与分析

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-04-27 DOI: 10.1002/lpor.202500367

Dian Xie, Pengbo Han, Baoxi Li, Jianhui Pan, Ningyan Ou, Xianfeng Qiao, Dezhi Yang, Qian Sun, Yanfeng Dai, Zhiming Wang, Anjun Qin, Ben Zhong Tang, Yuguang Ma, Dongge Ma

{"title":"Modeling and Analysis of Exciton Dynamics on “Hot Exciton” Process in Blue Fluorescent Organic Light‐Emitting Diodes","authors":"Dian Xie, Pengbo Han, Baoxi Li, Jianhui Pan, Ningyan Ou, Xianfeng Qiao, Dezhi Yang, Qian Sun, Yanfeng Dai, Zhiming Wang, Anjun Qin, Ben Zhong Tang, Yuguang Ma, Dongge Ma","doi":"10.1002/lpor.202500367","DOIUrl":"https://doi.org/10.1002/lpor.202500367","url":null,"abstract":"A comprehensive understanding on exciton dynamics in organic light‐emitting diodes (OLEDs) is of great significance for evaluating their electroluminescence (EL) performance. “Hot exciton” organic emissive materials have attracted widespread interest due to their highly efficient reverse intersystem crossing (hRISC), but their underlying exciton dynamics remain elusive. Herein, an exciton dynamic model on “hot exciton” process in blue fluorescent OLEDs is proposed. The model perfectly reproduces the external quantum efficiency (EQE) versus current density (EQE‐J) characteristics in blue fluorescent OLEDs based on four hot exciton materials, and the fundamental kinetic rates are well obtained. This model reveals that S1‐Tn (n ≥ 2) annihilation (S1TnA) is the primary quenching process, accompanied by certain T1‐T1 annihilation (T1T1A) and S1‐polaron (P) annihilation (S1PA), and T1T1A is mainly attributed to the loss caused by internal conversion (IC). The transient electroluminescence (TrEL) measurements further demonstrate that the decline in singlets is due to the aforementioned quenching. Importantly, the device lifetime exhibits a perfect positive linear relationship with the obtained kinetic rates, thereby simply enabling to predict the lifetime of OLEDs. This work contributes to improving the physical understanding on “hot exciton” behaviors, greatly aiding the development of high performance blue fluorescent OLEDs based on hot exciton materials.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"32 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878092","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recent Advances in d‐f Transition Lanthanide Complexes for Organic Light‐Emitting Diodes: Insights Into Structure–Luminescence Relationships 用于有机发光二极管的d - f跃迁镧系配合物的最新进展：对结构-发光关系的见解

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-04-27 DOI: 10.1002/lpor.202402198

Jie Li, Yanbo Zhao, Donghong Yu, Chuanlang Zhan

{"title":"Recent Advances in d‐f Transition Lanthanide Complexes for Organic Light‐Emitting Diodes: Insights Into Structure–Luminescence Relationships","authors":"Jie Li, Yanbo Zhao, Donghong Yu, Chuanlang Zhan","doi":"10.1002/lpor.202402198","DOIUrl":"https://doi.org/10.1002/lpor.202402198","url":null,"abstract":"Recently, d‐f transition lanthanide complexes have emerged as promising emitters with high exciton utilization efficiency (EUE) and short excited state lifetime simultaneously, demonstrating potential applications in organic light‐emitting diodes (OLEDs). First, the d‐f transition is parity‐allowed, resulting in short excited‐state lifetimes of the complexes in the nanosecond (ns) scale. Second, the 5d orbitals are sensitive to ligand‐field environments, and their splitting can be finely tuned by the ligand field, enabling precise control of emission colors. Third, the spin‐allowed single‐electron transitions, such as those in open‐shell Ce(III) and Eu(II) complexes, help address the efficiency limitations arising from singlet and triplet excitons. To date, Ce(III)‐based blue OLEDs have achieved external quantum efficiencies (EQEs) exceeding 20% and brightness levels over 30 000 cd m−2. However, OLEDs based on d‐f transition lanthanide complexes still face significant challenges, including color tunablility, photoluminescence quantum yields (PLQYs), and stability. This review first provides an introduction to OLEDs and luminescent materials. Next, an overview of the ligands used in d‐f transition lanthanide complexes is presented, covering four distinct ligands types. Finally, an in‐depth discussion explores the relationship between ligand structures, d‐f transition lanthanide complexes, and their photoluminescence (PL) and electroluminescence (EL) performance.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"53 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143878090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Cascaded Micro‐Ring Resonators for Low‐Crosstalk High‐Density Photonic Convolutional Computing 用于低串扰高密度光子卷积计算的级联微环谐振器

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-04-26 DOI: 10.1002/lpor.202401874

Yulong Huang, Zhenzhen Jiang, Jiawei Gu, Ganzhangqin Yuan, Yu Zheng, Ke Li, Mu Ku Chen, Lei Wang, Zihan Geng

{"title":"Cascaded Micro‐Ring Resonators for Low‐Crosstalk High‐Density Photonic Convolutional Computing","authors":"Yulong Huang, Zhenzhen Jiang, Jiawei Gu, Ganzhangqin Yuan, Yu Zheng, Ke Li, Mu Ku Chen, Lei Wang, Zihan Geng","doi":"10.1002/lpor.202401874","DOIUrl":"https://doi.org/10.1002/lpor.202401874","url":null,"abstract":"Photonic neural networks (PNNs) based on micro‐ring resonators (MRRs) have attracted significant attention for their compactness and low power consumption. However, there remains substantial room for improvement in spectral density and network performance. Here, a novel PNN architecture is introduced based on double‐stage serially coupled ring resonators (DCRRs), incorporating specially designed optoelectronic signal modulation and detection circuits, achieving a PNN with high spectral density, robustness, and accuracy. The DCRR achieves an extinction ratio of 55 dB and a narrow bandwidth of 0.17 nm. Through systematic innovation, it addresses the challenge of representing negative numbers in optoelectronic neural networks caused by the non‐negativity of light intensity, enabling positive and negative weighting operations using a single photodiode‐based architecture. Experimental validation in digital and cell edge extraction and classification tasks demonstrates high accuracies above 95%. Compared to single‐ring computing architectures with the same parameters, this method significantly reduces inter‐channel crosstalk and spectral spacing, leading to a sixfold increase in spectral density and achieving a compute density of 2.48 TOPS/mm2. Furthermore, utilizing DCRR‐based nonlinear activation results in faster convergence speed and higher recognition accuracy. The method provides the technical foundation for achieving high‐density, high‐precision photonic computing.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"3 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143875984","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Symmetry Disruption and Charge Localization: Unraveling Roles of Sb3+ in Enhancing Luminescence of Rare Earth Double Perovskites 对称破坏和电荷定位：Sb3+在稀土双钙钛矿增强发光中的揭示作用

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-04-25 DOI: 10.1002/lpor.202500082

Haiyan Wang, Jiandong Yao, Zixi Yin, Sheng Cao, Jialong Zhao, Xinxin Han, William Weiyong Yu, Ruosheng Zeng

{"title":"Symmetry Disruption and Charge Localization: Unraveling Roles of Sb3+ in Enhancing Luminescence of Rare Earth Double Perovskites","authors":"Haiyan Wang, Jiandong Yao, Zixi Yin, Sheng Cao, Jialong Zhao, Xinxin Han, William Weiyong Yu, Ruosheng Zeng","doi":"10.1002/lpor.202500082","DOIUrl":"https://doi.org/10.1002/lpor.202500082","url":null,"abstract":"Co-doping of rare earth (RE) and ns2 metal ions with in double perovskites shows great promise for applications in anti-counterfeiting, display, and radiation detection. However, the intrinsic physical nature for the enhanced photoluminescence remains unclear. Herein, we use gadolinium-based double perovskite as the model and propose an effective strategy for co-doping RE3+ with Sb3+ ions (5s2) to modulate the photoluminescence and energy transfer. The incorporation of Sb3+ increases the absorption cross section, thereby overcoming the limitation of 4f–4f narrowband absorption transitions. Furthermore, Sb3+ acts as a bridge for energy transfer, significantly facilitating this process. Density functional theory calculations reveal that the introduction of Sb3+ disrupts the symmetry of the [RECl6]3– octahedra, leading to increased distortion. Additionally, the electrons in the [RECl6]3– octahedra exhibit stronger localization in the Sb3+/RE3+ co-doped system, which enhances the Cl––RE3+ charge transfer process, thereby increasing the radiative transition rates and resulting in a high photoluminescence quantum yield. Our research elucidates the physical essence of Sb3+ enhanced luminescence in RE-based perovskites from both experimental and theoretical perspectives, providing valuable insights into modulation of luminescent properties and understanding of underlying physical mechanisms in RE3+ doped luminescent materials.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"14 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143872624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Scalable Open‐Air Synthesis of Mg2+‐Doped Lead‐Free Cs3Cu2Cl5 Nanocrystals for High‐Performance Green LEDs 用于高性能绿色led的Mg2+掺杂无铅Cs3Cu2Cl5纳米晶体的可扩展露天合成

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2025-04-25 DOI: 10.1002/lpor.202500430

Yang Tang, Qingyu Xie, Xuanming Zhang, Jiwei Ma, Hao Xie, Yongfeng Liu, Liang Zhao, Dongdong Yan, Xiaoyu Wang, Weixiang Ye

{"title":"Scalable Open‐Air Synthesis of Mg2+‐Doped Lead‐Free Cs3Cu2Cl5 Nanocrystals for High‐Performance Green LEDs","authors":"Yang Tang, Qingyu Xie, Xuanming Zhang, Jiwei Ma, Hao Xie, Yongfeng Liu, Liang Zhao, Dongdong Yan, Xiaoyu Wang, Weixiang Ye","doi":"10.1002/lpor.202500430","DOIUrl":"https://doi.org/10.1002/lpor.202500430","url":null,"abstract":"Cs3Cu2Cl5 nanocrystals (NCs) have emerged as promising optoelectronic materials owing to their efficient self‐trapped exciton (STE) emission. However, their limited environmental stability has significantly constrained their application in light‐emitting diodes (LEDs). In this work, a facile ambient‐air synthesis strategy is developed for Mg2⁺‐doped Cs3Cu2Cl5 NCs that simultaneously addresses both stability and emission efficiency challenges. Remarkably, optimal Mg2⁺ doping (20%) enhances the photoluminescence quantum yield (PLQY) from 28.69% to 59.3%. Comprehensive theoretical investigations through density of states (DOS) calculations and ab initio molecular dynamics (AIMD) simulations demonstrate that Mg2⁺ doping induces bandgap narrowing for enhanced radiative recombination while reinforcing the crystal lattice stability. When integrated with a UV LED chip, the optimized NCs enable the fabrication of high‐performance green LEDs exhibiting outstanding luminance (17 281 cd m−2) and excellent color stability (CIE coordinates: 0.354, 0.518). This study provides not only a practical synthetic approach for stable copper halide NCs but also valuable insights for designing efficient STE emitters for optoelectronic applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"5 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143875985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0