Shulin Han, Sihao Huang, Jungui Zhou, Jianzhong Fan, Zhengzheng Liu, Shuai Qiu, Yuzhi Song, Benedikt Sochor, Sarathlal Koyiloth Vayalil, Stephan V. Roth, Chuankui Wang, Juan Du, Lei Cai
{"title":"Engineering Energy Cascades in Quasi-2D/3D Perovskites Toward Low-Threshold Amplified Spontaneous Emission","authors":"Shulin Han, Sihao Huang, Jungui Zhou, Jianzhong Fan, Zhengzheng Liu, Shuai Qiu, Yuzhi Song, Benedikt Sochor, Sarathlal Koyiloth Vayalil, Stephan V. Roth, Chuankui Wang, Juan Du, Lei Cai","doi":"10.1002/lpor.202501369","DOIUrl":"https://doi.org/10.1002/lpor.202501369","url":null,"abstract":"Metal halide perovskites, particularly quasi-2D perovskites, have emerged as promising candidates for next-generation laser diode gain media due to their exceptional optoelectronic properties. However, conventional quasi-2D perovskites suffer from inefficient exciton funneling and pronounced efficiency roll-off at high carrier densities. Here, a quasi-2D/3D perovskite structure is proposed with a high-efficient energy cascade, modulated through molecular engineering strategy. The C─O─C functional groups in PEO form hydrogen bonds with PEA<sup>+</sup>, thereby delaying the assembly of PEA<sup>+</sup> with the [PbBr<sub>6</sub>]<sup>4−</sup> octahedra inorganic layer. This modification led to refined grain size, enhanced crystallinity, and improved surface flatness in the resulting films. Furthermore, the engineered quasi-2D/3D thin film exhibits an increased exciton binding energy while alleviating efficiency roll-off at high carrier density, achieved by effectively suppressing Auger recombination through directional energy transfer from the quasi-2D to the 3D phase. Consequently, the amplified spontaneous emission threshold of quasi-2D/3D films is reduced to 16.6 µJ cm<sup>−2</sup>, and obtained a higher net modal gain coefficient (892 cm<sup>−1</sup>). These findings provide critical insights for developing low-threshold perovskite lasers.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"28 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145117222","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}
{"title":"UV-Activated Large-Area Switchable Electro-Reflective Window for Energy-Efficient Electric Vehicles","authors":"Xin Jiang, Meng Yuan, Yitong Liu, Xin Hu, Jiawei Wang, Anqing Xu, Xin Tang, Zesheng Zhang, Long Yuan, Yu Duan","doi":"10.1002/lpor.202500531","DOIUrl":"https://doi.org/10.1002/lpor.202500531","url":null,"abstract":"The development of electrically driven smart glass with controlled modulation of solar radiation provides a reliable solution to seasonal fluctuations in cabin temperature, privacy leakage, and range anxiety in electric vehicles. However, the preparation of large-area electrochromic glass for cooling in summer and heating in winter remains a challenging task. Here, an electro-reflective device (ERD) with solar reflectance of 0.808 in the mirror state and solar transmittance of 0.637 in the transparent state is obtained by simple UV-activated operation of the device with a three-layer structure (ITO glass/electrolyte/ITO glass). The UV activation promotes the electrodeposition of finer, denser metal particles, reduces the electrodeposition voltage of Ag<sup>+</sup> by 29.2% and improves the light transmittance in the transparent state, which provides conditions for the expansion of the working area (up to 1726 cm<sup>2</sup>) and the enhancement of the seasonal temperature control. Simulation results show that ERD has achieved energy savings in air conditioning systems globally, with annual energy savings of 47.2% in the tropical city of Mexico City, demonstrating the potential to extend the driving range through thermal management optimization. This work provides a new solution for all-season energy savings in electric vehicles, helping to promote the electric vehicle business.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"10 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145127329","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}
{"title":"Crossover From Branched Flow to Anderson Localization in Time-Fluctuating Random Potentials","authors":"Jianwei Qin, Yan Liu, Fangwei Ye","doi":"10.1002/lpor.202501144","DOIUrl":"https://doi.org/10.1002/lpor.202501144","url":null,"abstract":"When a wavepacket propagates in a disordered system, two distinct phenomena, Anderson localization and branched flow, are known to occur. Anderson localization happens when the wavepacket becomes confined in a stationary random potential as it evolves, while branched flow occurs as the random potential fluctuates smoothly and slowly along the evolving dimension. In this study, the transition from branched flow to Anderson localization is investigated by progressively increasing the temporal correlation length of the random potential (denoted by <span data-altimg=\"/cms/asset/161efb67-a48f-4875-aaf8-e4cd92e25fe8/lpor70427-math-0001.png\"></span><mjx-container ctxtmenu_counter=\"5\" ctxtmenu_oldtabindex=\"1\" jax=\"CHTML\" role=\"application\" sre-explorer- style=\"font-size: 103%; position: relative;\" tabindex=\"0\"><mjx-math aria-hidden=\"true\" location=\"graphic/lpor70427-math-0001.png\"><mjx-semantics><mjx-mi data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"italic\" data-semantic- data-semantic-role=\"greekletter\" data-semantic-speech=\"tau\" data-semantic-type=\"identifier\"><mjx-c></mjx-c></mjx-mi></mjx-semantics></mjx-math><mjx-assistive-mml display=\"inline\" unselectable=\"on\"><math altimg=\"urn:x-wiley:18638880:media:lpor70427:lpor70427-math-0001\" display=\"inline\" location=\"graphic/lpor70427-math-0001.png\" xmlns=\"http://www.w3.org/1998/Math/MathML\"><semantics><mi data-semantic-=\"\" data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"italic\" data-semantic-role=\"greekletter\" data-semantic-speech=\"tau\" data-semantic-type=\"identifier\">τ</mi>$tau$</annotation></semantics></math></mjx-assistive-mml></mjx-container>) in the evolving dimension. The wave dynamics is found initially showing hyper-diffusion due to enhanced branched flow, but with a further increase in <span data-altimg=\"/cms/asset/0fde9436-bbff-4678-b437-e5e62439b15d/lpor70427-math-0002.png\"></span><mjx-container ctxtmenu_counter=\"6\" ctxtmenu_oldtabindex=\"1\" jax=\"CHTML\" role=\"application\" sre-explorer- style=\"font-size: 103%; position: relative;\" tabindex=\"0\"><mjx-math aria-hidden=\"true\" location=\"graphic/lpor70427-math-0002.png\"><mjx-semantics><mjx-mi data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"italic\" data-semantic- data-semantic-role=\"greekletter\" data-semantic-speech=\"tau\" data-semantic-type=\"identifier\"><mjx-c></mjx-c></mjx-mi></mjx-semantics></mjx-math><mjx-assistive-mml display=\"inline\" unselectable=\"on\"><math altimg=\"urn:x-wiley:18638880:media:lpor70427:lpor70427-math-0002\" display=\"inline\" location=\"graphic/lpor70427-math-0002.png\" xmlns=\"http://www.w3.org/1998/Math/MathML\"><semantics><mi data-semantic-=\"\" data-semantic-annotation=\"clearspeak:simple\" data-semantic-font=\"italic\" data-semantic-role=\"greekletter\" data-semantic-speech=\"tau\" data-semantic-type=\"identifier\">τ</mi>$tau$</annotation></semantics></math></mjx-assistive-mml></mjx-container>, a coherence-driven localization effect is triggered. This effect reduces diffusion and ultimately leads t","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"35 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145127327","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}
Zezhong Yang, Shisheng Lin, Song Zheng, Huiwang Lian, Sifan Zhuo, Simin Gu, Daqin Chen, Jing Wang
{"title":"High-Efficiency Red-Emitting Phosphor-In-Glass Films for Laser-Driven Lighting and Display","authors":"Zezhong Yang, Shisheng Lin, Song Zheng, Huiwang Lian, Sifan Zhuo, Simin Gu, Daqin Chen, Jing Wang","doi":"10.1002/lpor.202502185","DOIUrl":"https://doi.org/10.1002/lpor.202502185","url":null,"abstract":"Laser-driven phosphor-converted lighting and display technologies offer exceptional energy efficiency and superior performance. However, the development of high-quality white light sources with both excellent color rendering and high brightness remains a significant challenge due to the scarcity of red-emitting color converters that maintain high efficiency and stability under high laser powder densities. In this study, (Sr, Ca)AlSiN<sub>3</sub>: Eu<sup>2+</sup> (SCASN:Eu) phosphor-in-glass films (PiGFs), emitting from 610 to 680 nm, are fabricated on Al<sub>2</sub>O<sub>3</sub> ceramic substrates with minimal interfacial reactions. All PiGFs exhibited excellent densification and maintained high IQE, losses in IQE remaining below 10 % relative to the original phosphor. Notably, the PiGF with an emission peak at 653 nm achieved a lumen density of 206 lm mm<sup>−2</sup> @ 23.6 W mm<sup>−2</sup> due to its high thermal conductivity (22 W m<sup>−1</sup> K<sup>−1</sup>) and low IQE loss. Under rotating excitation, it reached a record 786 lm mm<sup>−2</sup> @ 90.6 W mm<sup>−2</sup>. Furthermore, a spatially separated YAGG:Ce-CASN:Eu “phosphor wheel” in reflective mode produced a luminous flux of 1125 lm @ 23.6 W mm<sup>−2</sup>, a correlated color temperature (CCT) of 6653 K, a color rendering index (CRI) of 86, and CIE coordinates (0.308, 0.338), enabling long-distance illumination and projection display. This work offers a promising strategy for developing high-efficiency color converters for advanced laser-based lighting and display applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"13 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145127330","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}
Zhen Jie Qi, Zheng Xing Wang, Jun Wei Zhang, Hui Dong Li, Hao Yu Zhang, Li Jie Wu, Qun Yan Zhou, Shao Nan Chen, Si Ran Wang, Zhen Zhang, Jiang Luo, Jun Yan Dai, Tie Jun Cui, Qiang Cheng
{"title":"A Low-Power Distributed System of Reconfigurable Intelligent Surfaces for Dynamic Signal Enhancements","authors":"Zhen Jie Qi, Zheng Xing Wang, Jun Wei Zhang, Hui Dong Li, Hao Yu Zhang, Li Jie Wu, Qun Yan Zhou, Shao Nan Chen, Si Ran Wang, Zhen Zhang, Jiang Luo, Jun Yan Dai, Tie Jun Cui, Qiang Cheng","doi":"10.1002/lpor.202501068","DOIUrl":"https://doi.org/10.1002/lpor.202501068","url":null,"abstract":"Distributed architecture enhances the robustness and adaptability in wireless communication, radar, and Internet of Things (IoT) systems, but faces the challenges of nodes synchronization, complex collaboration mechanism, and increased communication overhead. Especially when building large-scale systems, power consumption and channel resource management become the bottlenecks. Several researches have shown that the systems assisted by reconfigurable intelligent surface (RIS) offer distinct advantages such as simple structure, ease of integration, and high flexibility. However, the current researches on distributed RIS (DRIS) are largely limited to theoretical analyses under ideal conditions, and neglect the increases in power consumption and computational complexity. Here, a low-power DRIS system is proposed, which is specifically designed for wireless communication scenarios to dynamically enhance the signal quality in various areas while maintaining an ultra-low power of less than 5.67 mW per RIS on average. A pre-trained blind beamforming optimization algorithm and a visual tracking platform are integrated to the DRIS system to consistently realize superior performance even in complicated non-line-of-sight (NLoS) scenarios. The reliability and effectiveness of DRIS are experimentally demonstrated via a wireless data transmission platform, indicating that the proposed DRIS system is a promising and effective solution for future wireless communication, radar, and IoT applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"12 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145117221","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}
{"title":"Collective Dynamics of GHz Dissipative Solitons","authors":"Yang Yang, Wei Lin, Xu Hu, Xuewen Chen, Haijiao Xu, Yuncong Ma, Zhijin Xiong, Pengxiang He, Yin Wu, Xiaoming Wei, Zhongmin Yang","doi":"10.1002/lpor.202500912","DOIUrl":"https://doi.org/10.1002/lpor.202500912","url":null,"abstract":"Soliton molecular complexes – a collective pattern of solitons – feature fruitful nonlinear dynamics in dissipative optical systems, making them a significant concept from an interdisciplinary standpoint. Recently, a new type of collective pattern termed quasi-single soliton has been identified as a constituent of the soliton crystal, significantly contributing to the low-threshold mode-locking of GHz soliton lasers. Owing to its underlying complex interactions underpinned by multi-scale gain, the GHz soliton laser serves as an excellent platform for investigating the collective dynamics of dissipative solitons, a field that remains largely unexplored. To this end, a theoretical framework based on twofold gain effects is developed to predict the collective dynamics of soliton decay and reboot (SDR) and irregular Q-switched instability. In the experimental validations, a gated temporal-spectral measurement system utilizing a single parametric time-lens is developed. The measurements in real time conform well with the numerical predictions of the GHz fiber laser. Additionally, the intermittent dynamics, manifested as the SDR process during the quasi-steady state's intermediate phase, uncovers its underlying connection with the multi-scale gain landscapes. These efforts can shed new light on the dynamic-gain-driven collective dynamics of GHz dissipative solitons.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"11 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145127328","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}
{"title":"Magnetic Photonic Crystal for Adaptive Flexible Lasers and Secure Encoding","authors":"Zhijia Hu, Guangyin Qu, Lulu Guo, Xiaojuan Zhang, Siqi Li, Yan Kuai, Weiwei Fu, Jiangang Gao, Feng Xu, Jiangying Xia, Benli Yu","doi":"10.1002/lpor.202502240","DOIUrl":"https://doi.org/10.1002/lpor.202502240","url":null,"abstract":"Responsive photonic crystals (PCs) are attractive because of their unique photonic bandgap (PBG) effect, but existing systems tend to have challenges such as narrow PBG tuning range, slow response to external stimuli, poor reversibility, and difficulty in device integration. To address these issues, magneto-responsive colloidal PCs have been developed with the advantages of fast response, high sensitivity, good reversibility, and contactless manipulation. In addition, magneto-optical responsive flexible lasers are developed to bring new solutions for information encryption and anti-counterfeiting. Combining magnetic nanoparticles and spiropyran molecules to create a composite film that can be both magnetically and optically color-changing, achieving non-contact, multi-stimulus-responsive color-changing, and expanding the application fields for color display and anti-counterfeiting technologies. Further, a flexible laser is designed that achieves efficient and reversible laser wavelength tuning from 580 to 700 nm through dual control of the förster resonance energy transfer effect and magnetic field and UV irradiation. This laser's wavelength tuning combines the structural regulation of magnetic particles with the photo-responsive properties of spiropyran. It not only advances the field of optical communication but also enhances the security of information encoding and anti-counterfeiting through the synergy of magneto- and photochromism, bringing revolutionary improvements to anti-counterfeiting technology.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"61 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145117187","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}
{"title":"Integrated Photonics and Electronics for High-Speed Quantum Key Distribution","authors":"Zhao-Yuan Chen, Xin-Zhe Wang, Yang Li, Yu-Ang Wang, Chao-Ze Wang, Li-Kang Zhang, Yan-Fei Liu, Wen-Qi Cai, Juan Yin, Ji-Gang Ren, Feihu Xu, Sheng-Kai Liao, Cheng-Zhi Peng","doi":"10.1002/lpor.202501080","DOIUrl":"https://doi.org/10.1002/lpor.202501080","url":null,"abstract":"Quantum key distribution (QKD) has made significant advancements over the past few decades and is gradually transitioning from laboratory to industrial domain. This transformation process poses urgent demands for integrated, cost-effective, and mass-producible QKD devices. Here, by interfacing a laser diode, a QKD encoding photonics chip, and their associated electronics driver chips, the QKD transmitter has been condensed from several bulky discrete components to integrated modules with dimensions of a few centimeters, while the modulation rate of the transmitter has been enhanced to 3.33 GHz. Based on this transmitter, QKD is demonstrated over a 100 km standard fiber channel, capable of generating secure keys at a record high key rate of 2.82 Mbps over this distance. This work demonstrates the feasibility of high-speed integrated QKD transmitters, thereby further propelling the research on QKD in practical applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"17 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145103770","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}
B. Yamunasree, Chandrakalavathi Thota, Ayush Pandey, Srinadh Choppara, Yuwaraj K. Kshetri, Soorathep Kheawhom, G. Murali, Moon-Deock Kim, Insik In, Maddaka Reddeppa
{"title":"MXene-Integrated III-Nitride Semiconductors: Recent Progress and Perspectives","authors":"B. Yamunasree, Chandrakalavathi Thota, Ayush Pandey, Srinadh Choppara, Yuwaraj K. Kshetri, Soorathep Kheawhom, G. Murali, Moon-Deock Kim, Insik In, Maddaka Reddeppa","doi":"10.1002/lpor.202501261","DOIUrl":"https://doi.org/10.1002/lpor.202501261","url":null,"abstract":"III-nitride semiconductors, including GaN, InN, and AlN, are widely recognized for their tunable direct bandgaps, high electron mobility, thermal and chemical stability, and large breakdown voltages, properties that enable a broad range of electronic and optoelectronic applications. However, the performance of III-nitride-based devices is limited by challenges in lattice matching, defect formation, and suboptimal contact interfaces. Recently, two-dimensional MXenes have emerged as promising materials to overcome these limitations due to their exceptional metallic conductivity, tunable work function, solution processability, and ability to form clean van der Waals interfaces. This review highlights recent advances in integrating MXenes with III-nitrides to improve device functionalities. Their roles as transparent electrodes, growth templates for nanostructures, and interfacial layers that suppress defect states and enhance charge transport, are discussed. Furthermore, the fundamental mechanisms underlying MXene/III-nitride heterostructures are analyzed, their applications across photodetectors, light-emitting diodes, power electronics, gas sensors, and photoelectrochemical water splitting are explored, and key challenges hindering commercial adoption are identified. Finally, future research directions are proposed to harness the full potential of MXene-III-nitride hybrid systems.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"78 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145103768","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}
Jiacheng Shen, Zhiqiang Pan, Jinbiao Pan, Le Li, Kun Gang, Tiantian Sang, Mingli Liang, Shujuan Liu, Xiangmei Liu, Qiang Zhao
{"title":"Mechanochromism-Free Cu4I4 Complex-Based Scintillators for Highly-Efficient X-Ray Excited Luminescence and Highly-Resolution X-Ray Tomography Imaging","authors":"Jiacheng Shen, Zhiqiang Pan, Jinbiao Pan, Le Li, Kun Gang, Tiantian Sang, Mingli Liang, Shujuan Liu, Xiangmei Liu, Qiang Zhao","doi":"10.1002/lpor.202501179","DOIUrl":"https://doi.org/10.1002/lpor.202501179","url":null,"abstract":"Copper(I) halide cluster-based complexes (especially Cu<sub>4</sub>X<sub>4</sub>) are promising scintillators, but their practical application is limited by mechanochromism and nonradiative decay from cluster-centered (3CC) transitions. Herein, novel octahedral or distorted-octahedral Cu<sub>4</sub>X<sub>4</sub> (X = Cl, Br, I) clusters are reported, stabilized by a rigid diphenyl-2-pyridylphosphine ligand. These structures differ from classical cubane or stairstep geometries. The rigid ligand and intermolecular <i>π</i>–<i>π</i> interactions (π<sub>Ph</sub>–π<sub>Ph</sub> or π<sub>Py</sub>–π<sub>Ph</sub>) effectively suppress <sup>3</sup>CC-induced distortions and promote radiative <sup>3</sup>(M+X)LCT emission. A small singlet–triplet energy gap (ΔE<sub>ST</sub>) enables dual emission pathways via thermally activated delayed fluorescence (TADF) and phosphorescence, leading to shortened lifetimes, high quantum yields (PLQY up to 87.77%), and a steady-state X-ray relative light yield 2.5-fold higher than commercial scintillator Bi<sub>4</sub>Ge<sub>3</sub>O<sub>12</sub>. The corresponding flexible scintillator films exhibit excellent spatial resolution (>20 lp mm<sup>−1</sup>), and enable accurate 3D reconstruction of complex industrial components. These results highlight a robust strategy to enhance luminescence efficiency and stability of Cu<sub>4</sub>X<sub>4</sub>-based scintillators, offering great potential for high-resolution panoramic X-ray imaging and X-ray tomography in medical diagnosis and industrial non-destructive inspection.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":"162 1","pages":""},"PeriodicalIF":11.0,"publicationDate":"2025-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145103681","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}