ACS Photonics最新文献

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Free-Space Beam Steering with Twisted Bilayer Photonic Crystal Slabs 利用扭曲双层光子晶体板实现自由空间光束转向
IF 7 1区 物理与天体物理
ACS Photonics Pub Date : 2024-07-12 DOI: 10.1021/acsphotonics.4c00736
Beicheng Lou, Haoning Tang, Fan Du, Guangqi Gao, Eric Mazur, Shanhui Fan
{"title":"Free-Space Beam Steering with Twisted Bilayer Photonic Crystal Slabs","authors":"Beicheng Lou, Haoning Tang, Fan Du, Guangqi Gao, Eric Mazur, Shanhui Fan","doi":"10.1021/acsphotonics.4c00736","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c00736","url":null,"abstract":"We numerically demonstrate the inverse design of a structure for free-space beam steering, based on twisted bilayer photonic crystal slabs. The structure consists of two photonic crystal slabs that can be twisted in plane relative to each other. By rotating the two slabs in plane, one can diffract normally incident light into different outgoing angles, maintaining most of the power in the desired outgoing channel. Our work shows a novel way of achieving free-space beam steering in a compact structure and indicates the important opportunities in inverse design based on bilayer photonic crystal structures.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597455","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
Magnetic Field Effect on Spin-Polarized Excitons in Two-Dimensional Cesium Lead Bromide Perovskites 磁场对二维溴化铯铅包晶石中自旋极化激子的影响
IF 7 1区 物理与天体物理
ACS Photonics Pub Date : 2024-07-12 DOI: 10.1021/acsphotonics.4c00513
Ruiqin Huang, Jingnan Hu, Zhuo Yang, Yoshimitsu Kohama, Xinhui Zhang, Xixiang Zhu, Huakun Zuo, Jinyu Zou, Tao Peng, Liang Li, Gang Xu, Yibo Han
{"title":"Magnetic Field Effect on Spin-Polarized Excitons in Two-Dimensional Cesium Lead Bromide Perovskites","authors":"Ruiqin Huang, Jingnan Hu, Zhuo Yang, Yoshimitsu Kohama, Xinhui Zhang, Xixiang Zhu, Huakun Zuo, Jinyu Zou, Tao Peng, Liang Li, Gang Xu, Yibo Han","doi":"10.1021/acsphotonics.4c00513","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c00513","url":null,"abstract":"Spin–orbital coupling (SOC) in asymmetric two-dimensional semiconductors exhibits the Rashba effect. This coupling also shows spin-selective electric and optical properties, which are crucial for spintronic applications. Herein, we report the behavior of large circularly polarized excitonic photoluminescence in a two-dimensional lead halide perovskite in a magnetic field. The degree of circular polarization was found to be anisotropic and also dependent on the number of atomic layers, with saturation values of 31 and 3.5% at 4.2 and 200 K, respectively. The results were well simulated through theoretical calculations, where stronger Rashba SOC induced higher circular polarization in an external magnetic field. This high circular polarization at elevated temperatures, combined with the high light-emission efficiency, highlights the application potential of perovskite semiconductors in spin-photonic devices.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141602857","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
Mapping Optical Lateral Forces on the Poincaré Sphere 绘制 Poincaré 球上的光学侧向力图
IF 7 1区 物理与天体物理
ACS Photonics Pub Date : 2024-07-12 DOI: 10.1021/acsphotonics.4c00666
Yuchen Zhu, Sha Xiong, Chengxing Lai, Zeyong Wei, Chengfeng Lu, Yujiang He, Qinghua Song, Pin Chieh Wu, Hong Luo, Zhanshan Wang, Lingyun Xie, Yuzhi Shi, Xinbin Cheng
{"title":"Mapping Optical Lateral Forces on the Poincaré Sphere","authors":"Yuchen Zhu, Sha Xiong, Chengxing Lai, Zeyong Wei, Chengfeng Lu, Yujiang He, Qinghua Song, Pin Chieh Wu, Hong Luo, Zhanshan Wang, Lingyun Xie, Yuzhi Shi, Xinbin Cheng","doi":"10.1021/acsphotonics.4c00666","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c00666","url":null,"abstract":"Optical lateral forces (OLFs) play progressively important roles in optical manipulation, finding numerous applications in enantioselective sorting and sensing. Probing OLFs on achiral particles is also essential in interpreting extraordinary light–matter interactions. Recent advances have shown that the OLF can emerge from the transverse Belinfante spin momentum (BSM) and get maximum values when the light is circularly polarized. Here, by searching the Poincaré sphere, we find that the optical gradient force and radiation pressure correlate strongly with the ellipticity and azimuthal angles on the Poincaré sphere, which may exceed the OLF in a focused line-shaped beam. Consequently, the total lateral force may reach its maximum under the elliptical polarization rather than the circular polarization. Meanwhile, the ellipticity angle corresponding to the maximum force varies significantly with the particle size and its refractive index. Our work unravels a novel and efficient way to harness optical forces in a full-polarization manner and provides a new playground for various biophysical applications.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141602858","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
Ultrahigh Visible-Transparency, Submicrometer, and Polymer-Free Radiative Cooling Meta-Glass Coating for Building Energy Saving 用于建筑节能的超高透光率、亚微米级、无聚合物辐射冷却元玻璃涂层
IF 7 1区 物理与天体物理
ACS Photonics Pub Date : 2024-07-11 DOI: 10.1021/acsphotonics.4c00981
Shilv Yu, Jae-Seon Yu, Zihe Chen, Qinghe Li, Zhaochen Wang, Xiaobing Luo, Sun-Kyung Kim, Run Hu
{"title":"Ultrahigh Visible-Transparency, Submicrometer, and Polymer-Free Radiative Cooling Meta-Glass Coating for Building Energy Saving","authors":"Shilv Yu, Jae-Seon Yu, Zihe Chen, Qinghe Li, Zhaochen Wang, Xiaobing Luo, Sun-Kyung Kim, Run Hu","doi":"10.1021/acsphotonics.4c00981","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c00981","url":null,"abstract":"Glass windows are the most energy-inefficient part of buildings, which triggers the ongoing chasing of energy-efficient transparent radiative cooling (TRC) metamaterials on glasses that simultaneously maintain high visible (VIS) transparency, block near-infrared (NIR) solar radiation, and emit thermal energy through the atmosphere window (AW). However, the stringent multispectral regulation remains challenging since it involves with huge parameter spaces and significant interactions among different bands. Additionally, most TRC metamaterials require a top ∼50 μm polymer for high emissivity in the AW, which will reduce the VIS transparency and suffer from aging issue. Here, we employ the deep reinforcement learning (DRL) method, leveraging its robust material screening and structure optimization capabilities, to design a five-layer submicrometer dielectric multilayer, composed of two stacked materials, as polymer-free TRC metamaterial on glass or meta-glass for short. Utilizing a plain glass substrate with high emission in the AW, our meta-glass demonstrates an ultrahigh angular-independent (&lt;60°) VIS transmissivity against the state-of-the-art, i.e., 86% (92.7% in theory), with ∼48% NIR reflectivity and ∼89% AW emissivity in experiment. In outdoor experiments at ambient temperatures of ∼10 and ∼20 °C, with solar irradiances reaching around 780 and 850 W/m<sup>2</sup>, our meta-glass achieves a floor temperature reduction of 8.9 and 12.7 °C, respectively, compared to uncoated glass. Furthermore, we achieved customization of meta-glasses with varying transparency levels while maintaining high NIR reflectance by DRL. Our meta-glass exhibits an extraordinary building energy saving potential in most climate zones. This work provides a valuable reference for the advancement of TRC and the design of multispectral metamaterials.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597461","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
Evolution and Combination of Light Line Singularities in Planar Multilayers 平面多层膜中光线奇点的演变与组合
IF 7 1区 物理与天体物理
ACS Photonics Pub Date : 2024-07-11 DOI: 10.1021/acsphotonics.4c00705
Jiawei Wang, Mengqi Liu, Tianji Liu, Weijin Chen, Yue Ma, Qiuyu Wang, Wei Li
{"title":"Evolution and Combination of Light Line Singularities in Planar Multilayers","authors":"Jiawei Wang, Mengqi Liu, Tianji Liu, Weijin Chen, Yue Ma, Qiuyu Wang, Wei Li","doi":"10.1021/acsphotonics.4c00705","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c00705","url":null,"abstract":"In recent decades, optical singularities have been extensively investigated with intriguing phenomena and rich physics, including bound states in the continuum (BICs), exceptional points, and optical vortices. However, the behaviors of singularities at the light line have largely been ignored. Here, we reveal the generation and evolution of light line singularities and predict their distributions in planar configurations. Remarkably, when a system simultaneously supports light line singularities and BICs at the same point in the ω–<i>k</i><sub><i>x</i></sub> space, combined singularities are generated. The combined singularities (including combined BICs) at both 0° and 90° show robust higher <i>Q</i> properties against the perturbation of the system compared with isolated BICs or light line singularities. For example, in a lossy system, the topological phase singularity pairs (TPSPs) resulting from combined singularities have 3 orders of magnitude larger <i>Q</i> factors than TPSPs from isolated ones. Furthermore, the positions of these TPSPs can be dynamically manipulated by inserting a monolayer graphene. Our findings expand the classification of optical singularities at the light line and enhance <i>Q</i> factors by combining singularities with potential applications such as nonlinear optics, lasers, and sensors.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597459","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
Ultraviolet-B Resonant-Cavity Light-Emitting Diodes with Tunnel Junctions and Dielectric Mirrors 带隧道结和介电镜的紫外线-B 谐振腔发光二极管
IF 7 1区 物理与天体物理
ACS Photonics Pub Date : 2024-07-11 DOI: 10.1021/acsphotonics.4c00312
Estrella Torres, Joachim Ciers, Michael A. Bergmann, Jakob Höpfner, Sarina Graupeter, Massimo Grigoletto, Martin Guttmann, Tim Kolbe, Tim Wernicke, Michael Kneissl, Åsa Haglund
{"title":"Ultraviolet-B Resonant-Cavity Light-Emitting Diodes with Tunnel Junctions and Dielectric Mirrors","authors":"Estrella Torres, Joachim Ciers, Michael A. Bergmann, Jakob Höpfner, Sarina Graupeter, Massimo Grigoletto, Martin Guttmann, Tim Kolbe, Tim Wernicke, Michael Kneissl, Åsa Haglund","doi":"10.1021/acsphotonics.4c00312","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c00312","url":null,"abstract":"We demonstrate the first electrically injected AlGaN-based ultraviolet-B resonant-cavity light-emitting diode (RCLED). The devices feature dielectric SiO<sub>2</sub>/HfO<sub>2</sub> distributed Bragg reflectors enabled by tunnel junctions (TJs) for lateral current spreading. A highly doped n<sup>++</sup>-AlGaN/n<sup>++</sup>-GaN/p<sup>++</sup>-AlGaN TJ and a top n-AlGaN current spreading layer are used as transparent contacts, resulting in a good current spreading up to an active region mesa diameter of 120 μm. To access the N-face side of the device, the substrate is removed by electrochemically etching a sacrificial n-AlGaN layer, leading to a smooth underetched surface without evident parasitic etching in the n- and n<sup>++</sup>-doped layers of the device. The RCLEDs show a narrow emission spectrum with a full width at half-maximum (FWHM) of 4.3 nm compared to 9.4 nm for an ordinary LED and a more directional emission pattern with an angular FWHM of 52° for the resonance at 310 nm in comparison to ∼126° for an LED. Additionally, the RCLEDs show a much more stable emission spectrum with temperature with a red-shift of the electroluminescence peak of about ∼18 pm/K and a negligible change of the FWHM compared to LEDs, which shift ∼30 pm/K and show spectrum broadening with temperature. The demonstration of those devices, where a highly reflective mirror is spatially separated from an ohmic metal contact, opens up a new design space to potentially increase the poor light extraction efficiency in UV LEDs and is an important step toward electrically injected UV vertical-cavity surface-emitting lasers.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597454","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
Spin-Dependent Exciton–Exciton Interactions in a Mixed Lead Halide Perovskite Crystal 混合卤化铅过氧化物晶体中自旋相关的激子-共生相互作用
IF 7 1区 物理与天体物理
ACS Photonics Pub Date : 2024-07-11 DOI: 10.1021/acsphotonics.4c00499
Stefan Grisard, Artur V. Trifonov, Thilo Hahn, Tilmann Kuhn, Oleh Hordiichuk, Maksym V. Kovalenko, Dmitri R. Yakovlev, Manfred Bayer, Ilya A. Akimov
{"title":"Spin-Dependent Exciton–Exciton Interactions in a Mixed Lead Halide Perovskite Crystal","authors":"Stefan Grisard, Artur V. Trifonov, Thilo Hahn, Tilmann Kuhn, Oleh Hordiichuk, Maksym V. Kovalenko, Dmitri R. Yakovlev, Manfred Bayer, Ilya A. Akimov","doi":"10.1021/acsphotonics.4c00499","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c00499","url":null,"abstract":"We investigate the two-pulse photon echo response of excitons in the mixed lead halide perovskite crystal FA<sub>0.9</sub>Cs<sub>0.1</sub>PbI<sub>2.8</sub>Br<sub>0.2</sub> in dependence on the excitation intensity and polarization of the incident laser pulses. Using spectrally narrow picosecond laser pulses, we address localized excitons with long coherence times <i>T</i><sub>2</sub> ≈ 100 ps. This approach offers high sensitivity for the observation of excitation-induced changes in the homogeneous line width Γ<sub>2</sub> = 2<i>ℏ</i>/<i>T</i><sub>2</sub> on the μeV scale. Through intensity-dependent measurements, we evaluate the increase of Γ<sub>2</sub> by 10 μeV at an exciton density of 10<sup>17</sup> cm<sup>–3</sup> being comparable with the intrinsic line width of 14 μeV. We observe that the decay of the photon echo and its power dependence are sensitive to the polarization configuration of the excitation pulses, which indicates that spin-dependent exciton–exciton interactions contribute to excitation-induced dephasing. In cross-linear polarization, the decay is faster and its dependence on exciton density is stronger as compared to the copolarized configuration. Using a two-exciton model accounting for different spin configurations we are able to reproduce the experimental results.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597458","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
High-Speed Broadband PtSe2/Si 2D-3D Pin Photodetector with a Lightly n-Doped Si Interlayer Based on Single-Oriented PtSe2 基于单向 PtSe2 的带有轻 n 掺杂硅夹层的高速宽带 PtSe2/Si 2D-3D 引脚光电探测器
IF 7 1区 物理与天体物理
ACS Photonics Pub Date : 2024-07-11 DOI: 10.1021/acsphotonics.4c00450
Tian Ji, Shaoying Ke, Xiaojia Xu, Shaopeng Chen, Zhiming Li, Zhiwei Huang, Guanzhou Liu, Jinrong Zhou, Zhen Wang, Chong Wang
{"title":"High-Speed Broadband PtSe2/Si 2D-3D Pin Photodetector with a Lightly n-Doped Si Interlayer Based on Single-Oriented PtSe2","authors":"Tian Ji, Shaoying Ke, Xiaojia Xu, Shaopeng Chen, Zhiming Li, Zhiwei Huang, Guanzhou Liu, Jinrong Zhou, Zhen Wang, Chong Wang","doi":"10.1021/acsphotonics.4c00450","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c00450","url":null,"abstract":"Platinum diselenide (PtSe<sub>2</sub>), which is a member of transition metal dichalcogenides (TMDs), has aroused significant attention as a promising candidate for high-performance photodetection, owing to its distinctive properties and tunable interlayer band gap. However, the growth of the single-crystal PtSe<sub>2</sub> film remains a challenge, while the two-dimensional (2D)/three-dimensional (3D) heterojunction photodetector (PD) based on PtSe<sub>2</sub> is generally fabricated by directly combining the film with the substrate. Here, we report an effective method for synthesizing 2 in. single-oriented PtSe<sub>2</sub> films in a large diameter cavity by thermally assisted conversion (TAC). Meanwhile, a kind of PD based on the PtSe<sub>2</sub>/n<sup>–</sup>-Si/n<sup>+</sup>-Si pin structure is proposed for the first time. For comparison, other PDs based on the PtSe<sub>2</sub>/Si pn structure are also fabricated. The pin device exhibits a 3 dB frequency of ∼125 kHz, a response speed of 2.2/11.8 μs under the illumination at 532 nm, and a good response under the illumination at 1310, 1550, 1850, and 2200 nm for infrared image sensing. It has been demonstrated that the shorter carrier transit time and better control ability of the electric field can be responsible for the outstanding performance of the pin device. This work provides a potential to develop Si-based integrated optoelectronics with an ultrafast response and a guideline for designing the next-generation pin PD based on 2D materials.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597457","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
New Avenues for Phase Imaging: Optical Metasurfaces 相位成像的新途径:光学元表面
IF 7 1区 物理与天体物理
ACS Photonics Pub Date : 2024-07-11 DOI: 10.1021/acsphotonics.4c00359
Niken Priscilla, Shaban B. Sulejman, Ann Roberts, Lukas Wesemann
{"title":"New Avenues for Phase Imaging: Optical Metasurfaces","authors":"Niken Priscilla, Shaban B. Sulejman, Ann Roberts, Lukas Wesemann","doi":"10.1021/acsphotonics.4c00359","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c00359","url":null,"abstract":"Visualizing the phase of an optical field is fundamental to applications ranging from biological microscopy through to material science. Its importance is evidenced by the award of the 1953 Nobel Prize to Frits Zernike for his invention of the phase contrast microscope. Conventional phase imaging techniques, including Zernike phase contrast, differential interference contrast, and interferometry, often rely on bulky optical components and macroscopic propagation distances. These factors hinder the miniaturization and integration into ultracompact imaging systems. Furthermore, computational methods also present challenges due to computational complexity, potentially compromising speed and energy efficiency. The recent emergence of the use of nano-optics, including thin films and metasurfaces, in image processing has opened up possibilities for a new class of compact methods for phase imaging. These nanostructured devices have been shown to permit phase visualization, and we believe that they hold the potential to enable the next generation of imaging systems and photodetectors in a broad range of applications.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597456","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
Emission Wavelength Control Based on Coupling of Surface Plasmon and Microcavity Mode in Organic Light-Emitting Diodes with Metal/Dielectric/Metal Anodes 基于金属/电介质/金属阳极有机发光二极管中表面等离子体和微腔模式耦合的发射波长控制
IF 7 1区 物理与天体物理
ACS Photonics Pub Date : 2024-07-10 DOI: 10.1021/acsphotonics.3c01314
Yuto Masuda, Takayuki Kiba, Midori Kawamura, Yoshio Abe
{"title":"Emission Wavelength Control Based on Coupling of Surface Plasmon and Microcavity Mode in Organic Light-Emitting Diodes with Metal/Dielectric/Metal Anodes","authors":"Yuto Masuda, Takayuki Kiba, Midori Kawamura, Yoshio Abe","doi":"10.1021/acsphotonics.3c01314","DOIUrl":"https://doi.org/10.1021/acsphotonics.3c01314","url":null,"abstract":"Ag/ZnS/Ag (AZA) multilayer films with various ZnS interlayer thicknesses were deposited on glass substrates via thermal vacuum evaporation. The sheet resistances, work functions, transmittances, and reflectances of the AZA structures were characterized to evaluate whether their electrical and optical properties are suitable for application as organic light-emitting diode (OLED) electrodes. The transmittance peak and reflectance dip could be red-shifted by changing the interlayer thickness of the AZA structure, which resulted in a surface plasmon (SP) color filter effect. OLED devices with AZA multilayers of different interlayer thicknesses were then fabricated. Instead of the expected red shift in the emission spectrum due to the surface plasmon color filter effect of the AZA structure, two electroluminescence (EL) peaks were obtained in the AZA OLEDs with 45 and 60 nm thick ZnS interlayers. From the results of the finite-difference time-domain calculations, we conclude that the two split EL peaks are attributed to mode coupling between the optically active surface plasmons of the AZA structure and the microcavity of the OLED structure. The proposed OLED design with a metal/dielectric/metal electrode allows the control of the EL spectral shape and emission color without changing the thickness of the OLED organic layers.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":null,"pages":null},"PeriodicalIF":7.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141597460","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
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