Laser & Photonics Reviews最新文献_第3页

Unusual Nonlinear Absorption Switching in Mixed‐Halide Perovskites by Light‐Induced Halide Segregation 通过光诱导卤化物偏析实现混合卤化物包晶石中非同寻常的非线性吸收切换

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2024-09-05 DOI: 10.1002/lpor.202400564

Guan‐Feng Gao, Ze‐Kai Chen, Ke‐Sheng Lin, Ze‐Lin Li, Hao‐Tian Gu, Yu Gao, Yu Miao, Yongbo Wu, Xiaowen Hu, Lakshminarayana Polavarapu, Xiao‐Fang Jiang

{"title":"Unusual Nonlinear Absorption Switching in Mixed‐Halide Perovskites by Light‐Induced Halide Segregation","authors":"Guan‐Feng Gao, Ze‐Kai Chen, Ke‐Sheng Lin, Ze‐Lin Li, Hao‐Tian Gu, Yu Gao, Yu Miao, Yongbo Wu, Xiaowen Hu, Lakshminarayana Polavarapu, Xiao‐Fang Jiang","doi":"10.1002/lpor.202400564","DOIUrl":"https://doi.org/10.1002/lpor.202400564","url":null,"abstract":"Mixed‐halide perovskites (MHPs) have emerged as important semiconductor materials for optoelectronic devices due to the bandgap tunability by halide composition. However, their device applications are hampered by light‐induced ion migration and halide segregation, leading to the formation of lower bandgap domains with red‐shifted photoluminescence. Previous studies of phase segregation in MHPs have predominantly focused on their linear optical properties. Herein, nonlinear absorption (NLA) properties of MAPbBr2I films before and after femtosecond laser irradiation are investigated using the Micro‐I‐scan technique. An unusual NLA switching from reverse‐saturable absorption (RSA) to saturable absorption (SA) under intense laser illumination is found. It is unveiled that the initial RSA originates from two‐photon absorption in uniform bromide‐rich regions of as‐prepared film whereas the SA occurs due to state filling effect in the newly generated low bandgap I‐rich phases under laser irradiation. The switching threshold and effective NLA coefficient are highly dependent on the distribution of halide ions, which is controllable through the laser illumination time. Furthermore, an all‐optical logic gate scheme is demonstrated based on the unusual NLA switching. The results not only unveil that halide segregation results in NLA switching in MHPs but also pave the way for the realization of MHPs‐based nonlinear photonic devices.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":null,"pages":null},"PeriodicalIF":11.0,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142142378","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

Ultrasensitive Terahertz Fingerprint Retrieval with Multiple‐BIC‐Enabled Meta‐Sensors 利用多 BIC 元传感器进行超灵敏太赫兹指纹检索

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2024-09-05 DOI: 10.1002/lpor.202400825

Quanlong Yang, Zhibo Yao, Lei Xu, Yapeng Dou, Lingli Ba, Fan Huang, Quan Xu, Longqing Cong, Jianqiang Gu, Junliang Yang, Mohsen Rahmani, Jiaguang Han, Ilya Shadrivov

{"title":"Ultrasensitive Terahertz Fingerprint Retrieval with Multiple‐BIC‐Enabled Meta‐Sensors","authors":"Quanlong Yang, Zhibo Yao, Lei Xu, Yapeng Dou, Lingli Ba, Fan Huang, Quan Xu, Longqing Cong, Jianqiang Gu, Junliang Yang, Mohsen Rahmani, Jiaguang Han, Ilya Shadrivov","doi":"10.1002/lpor.202400825","DOIUrl":"https://doi.org/10.1002/lpor.202400825","url":null,"abstract":"Bound states in the continuum (BICs) are an excellent platform enabling highly efficient light–matter interaction in applications for lasing, nonlinear generation, and sensing. However, the current focus in implementing BICs has primarily been on single sharp resonances, limiting the extent of electric field enhancement for multiple resonances. In this study, experimental demonstrations are conducted to showcase how metasurfaces can enable the control of symmetry‐broken and Friedrich–Wintgen BICs by leveraging the asymmetry of split resonant rings. This approach allows for the existence of multiple free‐control BIC resonances and tailored enhancement of controlling light–matter interactions. Further experiments are conducted to validate the effectiveness and performance of meta‐sensors for the identification of the distinct fingerprint of α‐lactose with high sensitivity using only one single metasurface. These findings present a novel and efficient platform for the development of miniaturized and chip‐scale photonics devices with intense light–matter interaction.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":null,"pages":null},"PeriodicalIF":11.0,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142142377","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

Colloidal Copper(I) Iodide Cluster‐Based Scintillators for High‐Resolution X‑Ray Imaging 用于高分辨率 X 射线成像的碘化铜（I）簇基胶体闪烁体

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2024-09-05 DOI: 10.1002/lpor.202400963

Jingfei Ni, Qian Cao, Kang Xiao, Kun Gang, Shujuan Liu, Xiangmei Liu, Qiang Zhao

{"title":"Colloidal Copper(I) Iodide Cluster‐Based Scintillators for High‐Resolution X‑Ray Imaging","authors":"Jingfei Ni, Qian Cao, Kang Xiao, Kun Gang, Shujuan Liu, Xiangmei Liu, Qiang Zhao","doi":"10.1002/lpor.202400963","DOIUrl":"https://doi.org/10.1002/lpor.202400963","url":null,"abstract":"Copper(I) halide cluster‐based coordination compounds have attracted significant attention in the development of novel scintillators due to their mild synthesis methods, high luminescence efficiency, tunable emission wavelength, high‐Z element incorporation, and large structural diversity. However, a major obstacle for these crystalline materials with covalent/coordination network structures is their insolubility, which poses significant challenges for the low‐cost and large‐scale production of scintillation films. In this study, copper(I) iodide and benzotriazole derivative ligands with diverse cationic substituents are employed to fabricate all‐in‐one (AIO) colloidal copper(I) iodide cluster‐based scintillator suspensions. These suspensions, characterized by distinctive ionic and coordination bonds, are synthesized via confined growth in the presence of polyvinylpyrrolidone (PVP). Furthermore, they demonstrate exceptional compatibility with polymer matrices, facilitating the production of uniform and flexible scintillation films with highly efficient radioluminescence through blade coating. The resulting films achieved an excellent spatial resolution of 17 lp mm−1. This surfactant‐assisted fabrication method for colloidal scintillators, combined with microelectronic printing for film preparation, demonstrates significant potential for developing flexible scintillation films for high‐resolution X‐ray imaging.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":null,"pages":null},"PeriodicalIF":11.0,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142142715","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

Realizing Near‐Unity Photoluminescence Quantum Yield in Metal Halide RbCdCl3:Mn2+ Crystals via Phase Transformation Engineering 通过相变工程实现金属卤化物 RbCdCl3:Mn2+ 晶体的近极光量子产率

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2024-09-05 DOI: 10.1002/lpor.202401147

Yan Song, Zhen Jia, Pifu Gong, Zhigang Wang, Changchun Yuan, Mingxing Chen, Jing Zhao, Xinhui Li, Yanjiao Zhang, Mingjun Xia

{"title":"Realizing Near‐Unity Photoluminescence Quantum Yield in Metal Halide RbCdCl3:Mn2+ Crystals via Phase Transformation Engineering","authors":"Yan Song, Zhen Jia, Pifu Gong, Zhigang Wang, Changchun Yuan, Mingxing Chen, Jing Zhao, Xinhui Li, Yanjiao Zhang, Mingjun Xia","doi":"10.1002/lpor.202401147","DOIUrl":"https://doi.org/10.1002/lpor.202401147","url":null,"abstract":"All‐inorganic metal halides have merged as auspicious materials for optoelectronic applications due to their predominant tunable and controlled photoluminescence (PL) properties. Despite substantial efforts and advances in the development of these all‐inorganic metal halides, considerable long‐term challenges remain to be solved to realize cutting‐edge material performances. Here, an all‐inorganic metal halide RbCdCl3, featuring a reversible structural phase transformation from non‐perovskite (orthorhombic‐phase) to perovskite (tetragonal‐phase) structure is reported. Intriguingly, via phase transformation regulation engineering, a near‐unity photoluminescence quantum yield (PLQY) along with large Stokes shift (275 nm) and long decay lifetime (14.69 ms) is achieved in RbCdCl3:Mn2+ thermochromic fluorescent materials, comparing with the pristine non‐pervoskite structure with an initial PLQY of 3.1%. Moreover, the underlying PL switching mechanisms are systematically elucidated by the in situ optical characterizations and the first‐principles calculations. This work demonstrates a thermochromic fluorescent anti‐counterfeiting material based on the tunable and reversible photoluminescence switching and also provides a phase structure engineering in metal halides to broaden their manifold applications in optoelectronic fields.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":null,"pages":null},"PeriodicalIF":11.0,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142142380","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

Integrated Quad‐Color Nanoprinting and Tri‐Channel Holographic Encryption Meta‐Marks with Printable Metasurfaces 集成四色纳米印刷和三通道全息加密元标记与可印刷元表面

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2024-09-05 DOI: 10.1002/lpor.202401045

Jintao Gong, Lingxing Xiong, Fei Zhang, Mingbo Pu, Minghui Hong, Xiangang Luo

{"title":"Integrated Quad‐Color Nanoprinting and Tri‐Channel Holographic Encryption Meta‐Marks with Printable Metasurfaces","authors":"Jintao Gong, Lingxing Xiong, Fei Zhang, Mingbo Pu, Minghui Hong, Xiangang Luo","doi":"10.1002/lpor.202401045","DOIUrl":"https://doi.org/10.1002/lpor.202401045","url":null,"abstract":"Optical metasurfaces offer innovative approaches to manipulate the amplitude, phase, frequency, and polarization of light in localized regions, thus paving the way for a viable technology that can be applied in various domains, including structural coloration, multiplexed holography, and high‐resolution displays. To address the escalating need for sophisticated encryption, a novel quadruple‐security flexible plasmonic anti‐counterfeiting platform is proposed that utilizes printable centimeter‐scale (0.6 cm) metasurfaces. These metasurfaces feature four distinct signatures: They appear as color images under ambient incoherent white light, while projecting up to three different holograms under red, green, or blue circularly polarized laser illumination. Such holographic color nanoprintings are not only easily authenticated but also difficult to imitate, offering enhanced security in anti‐counterfeiting applications. The design of these multifunctional metasurfaces, which encode information solely in the surface relief of a single polymeric material with a silver coating, allows for efficient mass production through UV nanoimprinting lithography. Given the superior performance of these multifunctional plasmonic metasurfaces, this work presents tremendous potential in various fields such as multi‐level information security, cost‐effective anti‐counterfeiting, and many others.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":null,"pages":null},"PeriodicalIF":11.0,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142142379","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

Broadband and Reconfigurable Dual‐Mode Optical Switch with Low Power‐Consumption 低功耗宽带可重构双模光开关

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2024-09-05 DOI: 10.1002/lpor.202400427

Shijie Sun, Shangrong Li, Yuanhua Che, Tianhang Lian, Yushu Fu, Xibin Wang, Daming Zhang

{"title":"Broadband and Reconfigurable Dual‐Mode Optical Switch with Low Power‐Consumption","authors":"Shijie Sun, Shangrong Li, Yuanhua Che, Tianhang Lian, Yushu Fu, Xibin Wang, Daming Zhang","doi":"10.1002/lpor.202400427","DOIUrl":"https://doi.org/10.1002/lpor.202400427","url":null,"abstract":"Mode‐division multiplexing (MDM) technology, as a new way to increase the communication capacity of a single wavelength carrier, has attracted increasing attention. As a fundamental building block for MDM communication systems, multimode optical switch is playing an important role for routing the increasingly complex network. However, it is still very challenging to achieve a multimode optical switch with high flexibility and low power‐consumption in a large bandwidth. Here, a 1 × 2 dual‐mode optical switch is proposed and experimentally demonstrated, where the E11 and E21 modes can be switched output from either of the two output ports simultaneously or individually with low power‐consumption. For the proposed dual‐mode optical switch, three asymmetric Y‐junctions are used as mode (de)multiplexers, two Mach–Zehnder interferometers form a single‐mode switch matrix, and a 2 × 2 multimode interferometer is used as the waveguide crossing. The device is fabricated with simple photolithography and wet‐etching methods. The measurement results show that the driving powers of the device are lower than 8.4 mW, and the crosstalks are less than −12.4 dB in the wavelength range of 1500–1600 nm. By implementing the dynamic control of resources between the guided modes, the proposed device can greatly improve the flexibility and efficiency of reconfigurable MDM networks.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":null,"pages":null},"PeriodicalIF":11.0,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142142381","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

Self-Powered Perovskite/Si Bipolar Response Photodetector for Visible and Near-Infrared Dual-Band Imaging and Secure Optical Communication 用于可见光和近红外双波段成像及安全光通信的自供电 Perovskite/Si 双极响应光电探测器

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2024-09-04 DOI: 10.1002/lpor.202401331

Liukang Bian, Fengren Cao, Han Zhao, Fei Xiang, Haoxuan Sun, Meng Wang, Liang Li

{"title":"Self-Powered Perovskite/Si Bipolar Response Photodetector for Visible and Near-Infrared Dual-Band Imaging and Secure Optical Communication","authors":"Liukang Bian, Fengren Cao, Han Zhao, Fei Xiang, Haoxuan Sun, Meng Wang, Liang Li","doi":"10.1002/lpor.202401331","DOIUrl":"https://doi.org/10.1002/lpor.202401331","url":null,"abstract":"Vertically stacked wavelength modulation bipolar response photodetectors are expected to be applied in various fields because they enable bipolar detection and transmission within one device and do not require harsh operating conditions. However, the as-reported bipolar devices either need to change the detection mode (flipping the device or applying external bias) or have limited application effects. In this study, a self-powered FAPbI3/silicon hybrid visible and near-infrared bipolar response photodetector is reported, and the bipolar response is tuned by controlling the transmittance and interface contact of transparent electrodes. Moreover, unlike for photosensitive layers such as perovskites or organic compounds, the preparation of electrodes does not involve solvents, and array devices with different electrodes can be prepared in microregions without affecting adjacent regions. Then, an encrypted communication system that requires comprehensive consideration of the positive and negative states of different transparent electrode-based devices caused by 650-nm visible and 940-nm near-infrared transmission signals are designed, increasing the difficulty of decryption. A dual-band spectral imaging system that does not require additional voltage driving by combining the reflection of visible light and the penetration ability of near-infrared light is implemented, ensuring miniaturization and high integration of the visual imaging system.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":null,"pages":null},"PeriodicalIF":11.0,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142130648","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

In Situ Fabrication of Multi-Site Contacted Perovskite/Organic Hybrid Color Converter for Indoor Lighting and Light Communication 原位制造用于室内照明和光通信的多位点接触型 Perovskite/有机混合色彩转换器

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2024-09-04 DOI: 10.1002/lpor.202400758

Tianliang Yao, Zhi Yang, Linyuan Gu, Jisong Yao, Shalong Wang, Wenxuan Fan, Yingyi Nong, Jizhong Song

{"title":"In Situ Fabrication of Multi-Site Contacted Perovskite/Organic Hybrid Color Converter for Indoor Lighting and Light Communication","authors":"Tianliang Yao, Zhi Yang, Linyuan Gu, Jisong Yao, Shalong Wang, Wenxuan Fan, Yingyi Nong, Jizhong Song","doi":"10.1002/lpor.202400758","DOIUrl":"https://doi.org/10.1002/lpor.202400758","url":null,"abstract":"Designing fast-response and efficient color converter is of significance for indoor white light-emitting diode (WLED) lighting and visible light communication (i.e., Light Fidelity, LiFi) application. Green-emitting CsPbBr3 quantum dots combined with red organic emitters are promising candidates. However, organic emitters cannot offer an adequate red emission intensity when they have a low weight fraction in the color converter. Herein, a multi-site contacted CsPbBr3/organic color converter is fabricated with an efficient red emission via an in situ solid-phase fabrication technique. It is found that the multi-site contacted color converter has a 2.1 times higher red emission intensity compared to the physically mixed hybrid due to a more efficient energy transfer from CsPbBr3 to organic emitters. Resultantly, the multi-site contacted WLED exhibits a color rendering index (CRI) of 86 and a luminous efficacy (LE) of 100 lm W−1, which are much higher than the physically mixed hybrid with a CRI of 49 and a LE of 60 lm W−1. In addition, WLEDs present a superior visible light communication capability, evidenced by an opened-eye diagram at the data rate of 5 Mbps. This study indicates the design and fabrication of perovskite/organic color converter are significant for constructing efficient and fast-response WLEDs for the indoor LiFi application.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":null,"pages":null},"PeriodicalIF":11.0,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142130649","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

Addressing Responsivity-Noise Trade-Off by Van der Waals Multilayer Two-Phase Heterojunction for Large LDR Organic Photodetectors 通过范德华多层两相异质结解决大型 LDR 有机光电探测器的响应度-噪声权衡问题

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2024-09-04 DOI: 10.1002/lpor.202400554

Meiyu He, Jiayue Han, Chunyu Li, Chao Han, Xingwei Han, Xiaoyang Du, Hanwen Luo, He Yu, Jun Gou, Zhiming Wu, Jun Wang

{"title":"Addressing Responsivity-Noise Trade-Off by Van der Waals Multilayer Two-Phase Heterojunction for Large LDR Organic Photodetectors","authors":"Meiyu He, Jiayue Han, Chunyu Li, Chao Han, Xingwei Han, Xiaoyang Du, Hanwen Luo, He Yu, Jun Gou, Zhiming Wu, Jun Wang","doi":"10.1002/lpor.202400554","DOIUrl":"https://doi.org/10.1002/lpor.202400554","url":null,"abstract":"One of the main challenges most organic photodiodes (OPDs) facing is to overcome the traditional trade-off between ultralow dark current and high responsivity (R) in existing research. Here, van der Waals multilayer OPD based on water transfer printing method, termed hybrid bulk-heterojunction (BHJ)/planar-heterojunction (PHJ) (B-PHJ) framework, is constructed making certain the high-quality interface and novel two-phase energy band alignment between the active and barrier layer with noise suppression and photovoltaic complement simultaneously. The prepared OPD exhibits the combined advantages of ultralow dark current (0.2 nA cm−2 at −1 V) and high responsivity (0.49 A W−1 at 850 nm). As a result, these superimposed effects enable the device to feature a superior liner dynamic range (LDR) of 210 dB and a specific detectivity of 1014 Jones to address the conventional responsivity-noise trade-off. The results reveal that the balance dynamics of charge transfer and charge blocking in van der Waals hybrid two-phase framework OPD, may inspire the development of next OPDs. Finally, its diverse practical application potential is demonstrated through long-distance misaligned photoplethysmography (PPG) measurement.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":null,"pages":null},"PeriodicalIF":11.0,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142130646","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

Fine-Tuning of Near-Infrared Emission in Fe-Activated Spinel Phosphors via the Synergistic Effect of Sites Inversion and Atomic Disorder 通过位点反转和原子紊乱的协同效应微调铁活化尖晶石荧光粉的近红外发射率

IF 11 1区物理与天体物理

Laser & Photonics Reviews Pub Date : 2024-09-03 DOI: 10.1002/lpor.202400966

Yulong Ye, Heyi Yang, Liang Liang, Qinan Mao, Fangyi Zhao, Yiwen Zhu, Meijiao Liu, Jiasong Zhong

{"title":"Fine-Tuning of Near-Infrared Emission in Fe-Activated Spinel Phosphors via the Synergistic Effect of Sites Inversion and Atomic Disorder","authors":"Yulong Ye, Heyi Yang, Liang Liang, Qinan Mao, Fangyi Zhao, Yiwen Zhu, Meijiao Liu, Jiasong Zhong","doi":"10.1002/lpor.202400966","DOIUrl":"https://doi.org/10.1002/lpor.202400966","url":null,"abstract":"Achieving continuous tunability, high efficiency, and outstanding thermal stability of near-infrared (NIR) phosphors remains challenging for optoelectronic device fields. To address this issue, a strategy is proposed based on the substitution of both cations and anions in the intermediate spinel structure, which successfully achieved fine-tuning of NIR emission of Mg1+yGa2-yO4-yFy:Fe3+ phosphors with prominent optical characteristics. The NIR emission contains new luminescent centers with random O/F coordination and is successfully constructed. This co-substitution promotes further inversion of the cationic sites and induces atomic disorder, changing the crystal coordination environment and making Fe3+ breakthrough the Laporte selection rule, enabling fine-tuning of Fe3+ emissions in the range of 707–740 nm and broadening of the full width at half maximum by 30 nm. Moreover, the Mg1.15Ga1.85O3.85F0.15:Fe3+ phosphor reached a high quantum yield of 71.6% and presented excellent thermal stability with an emission intensity retention of 81% at 493 K. The emission of the fabricated NIR phosphor-converted light-emitting diodes also matched well with the photosensitive pigment Pfr, demonstrating its feasibility for plant growth lighting applications.","PeriodicalId":204,"journal":{"name":"Laser & Photonics Reviews","volume":null,"pages":null},"PeriodicalIF":11.0,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142130655","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