ACS Photonics最新文献_第8页

Unipolar P-Type Electrical Conduction and Improved Photodetection of MoTe2 Transistors with Unique SnSe2 Contacts 具有独特SnSe2触点的MoTe2晶体管的单极p型导电和改进的光电检测

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-12-30 DOI: 10.1021/acsphotonics.4c01127

Wenyu Lei, Xiaokun Wen, Gaojie Zhang, Boyuan Di, Hao Wu, Xinyue Xu, Weijia Tang, Youewei Zhang, Haixin Chang, Wenfeng Zhang

{"title":"Unipolar P-Type Electrical Conduction and Improved Photodetection of MoTe2 Transistors with Unique SnSe2 Contacts","authors":"Wenyu Lei, Xiaokun Wen, Gaojie Zhang, Boyuan Di, Hao Wu, Xinyue Xu, Weijia Tang, Youewei Zhang, Haixin Chang, Wenfeng Zhang","doi":"10.1021/acsphotonics.4c01127","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01127","url":null,"abstract":"Although two-dimensional transition metal dichalcogenides (TMDCs) exhibit excellent electrical and optical properties, the Schottky barrier at the contact electrode/TMDC interface imposes severe limitations on device performance. Herein, we demonstrate that the quasi-Ohmic contact characteristics with an ignorable Schottky barrier of 13.1 meV can be achieved in MoTe2 transistors by using the degenerated semiconductor SnSe2 as the contact electrodes. The SnSe2-contacted MoTe2 transistors present unipolar p-type conduction with an on/off current ratio of over 105. Furthermore, the SnSe2-contacted MoTe2 transistor exhibits excellent photodetection performance, with an outstanding photoresponsivity of 616.7 A/W, a high specific detectivity of 5.02 × 1012 Jones, an ultrafast response speed of 40 ns, and a 3 dB bandwidth of 47 MHz. This study provides a feasible strategy for achieving both rare unipolar p-type MoTe2 transistors and high-performance phototransistors, which is expected to have a significant impact on the engineering of future two-dimensional electronic and optoelectronic devices.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"64 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142901860","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

Circularly Polarized Attosecond Pulses Enabled by an Azimuthal Phase and Polarization Grating 由方位相位和偏振光栅实现的圆偏振阿秒脉冲

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-12-30 DOI: 10.1021/acsphotonics.4c01996

Nathan J. Brooks, Alba de las Heras, Bin Wang, Iona Binnie, Javier Serrano, Julio San Román, Luis Plaja, Henry C. Kapteyn, Carlos Hernández-García, Margaret M. Murnane

{"title":"Circularly Polarized Attosecond Pulses Enabled by an Azimuthal Phase and Polarization Grating","authors":"Nathan J. Brooks, Alba de las Heras, Bin Wang, Iona Binnie, Javier Serrano, Julio San Román, Luis Plaja, Henry C. Kapteyn, Carlos Hernández-García, Margaret M. Murnane","doi":"10.1021/acsphotonics.4c01996","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01996","url":null,"abstract":"High-harmonic generation (HHG) is an extreme nonlinear optical process that can map the properties of an infrared driving laser beam onto short wavelength attosecond pulse trains. However, current techniques for generating circularly polarized high harmonics for probing magnetic materials and chiral systems have limitations: two-color collinear counter-rotating driving lasers result in a low cutoff photon energy, while single-color noncollinear counter-rotating schemes suffer from low conversion efficiency. In this work, we generate circularly polarized attosecond pulse trains by using a structured laser driver which has a rotating polarization and phase grating along the azimuthal coordinate. Our experimental and numerical results demonstrate the production of left and right circularly polarized harmonics, which naturally separate upon propagation. Our approach uses a single laser color in a collinear geometry, that can be scaled for high efficiency. Simulations show this scheme can extend into the soft X-ray region when driven by mid-infrared driving lasers, while preserving the same high phase-matching cutoff photon energy as for linearly polarized high harmonics.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"33 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2024-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142905410","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

Fluorescence Interference-Based Polarized Structured Illumination Microscopy for High Axial Accuracy Morphology Imaging of Dipole Orientations 基于荧光干涉的极化结构照明显微镜用于偶极子取向的高轴向精度形态学成像

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-12-29 DOI: 10.1021/acsphotonics.4c01807

Yile Sun, Hongfei Zhu, Xinxun Yang, Enxing He, Hanmeng Wu, Lu Yin, Weiyun Sun, Xin Luo, Yubing Han, Xiang Hao, Renjie Zhou, Cuifang Kuang, Xu Liu

{"title":"Fluorescence Interference-Based Polarized Structured Illumination Microscopy for High Axial Accuracy Morphology Imaging of Dipole Orientations","authors":"Yile Sun, Hongfei Zhu, Xinxun Yang, Enxing He, Hanmeng Wu, Lu Yin, Weiyun Sun, Xin Luo, Yubing Han, Xiang Hao, Renjie Zhou, Cuifang Kuang, Xu Liu","doi":"10.1021/acsphotonics.4c01807","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01807","url":null,"abstract":"The dipole orientation of fluorescent molecules reveals the structural organization at the subcellular level, and imaging its distribution is important for fundamental cell biology studies. Using conventional fluorescence microscopy, the orientation of fluorescent dipoles can be obtained by demodulating the polarization states through excitation or emission processes. The recent introduction of structured illumination microscopy (SIM) has improved the axial and lateral resolution to around 300 and 100 nm, respectively. However, the axial resolution is still very limited, which hinders the capabilities to offer more precise measurements of polarization information. Here, we report Fluorescence Interference based polarized structured illumination microscopy (FI-pSIM), which provides a sub-30 nm axial reconstruction accuracy and maintains the same lateral resolution comparable to SIM by only 9 raw images. By synergizing the fluorescence interference via the 4Pi configuration and the polarization demodulation of structured illumination, FI-pSIM enables three-dimensional morphological imaging of ensemble dipole orientations in subcellular structures with ∼ sub-30 nm accuracy of axial reconstruction. The high efficacy and four-dimensional (4D) imaging modality of FI-pSIM are demonstrated by mapping the distribution and orientation of fluorescent dipoles in biological microfilaments. By elucidating the dipole orientations, we envision FI-pSIM may open up new avenues for demystifying the 4D organizations of subcellular structures.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"33 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2024-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142901930","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

Phonon-Polariton-Mediated Configurable Radiative Thermal Router 声子-极化介导的可配置辐射热路由器

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-12-28 DOI: 10.1021/acsphotonics.4c01622

Shuo Chen, Ceji Fu, Guangwei Hu

{"title":"Phonon-Polariton-Mediated Configurable Radiative Thermal Router","authors":"Shuo Chen, Ceji Fu, Guangwei Hu","doi":"10.1021/acsphotonics.4c01622","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01622","url":null,"abstract":"Photon-based radiative thermal router, controlling the nanoscale flow of heat, exhibits exciting potential in energy harvesting and thermal management. However, existing studies show that the terminals of thermal routers strongly depend on external field manipulations or anisotropic materials. To overcome these limitations, we propose a thermal router consisting of three isotropic particles which are placed in the proximity of a twisted bilayer made of in-plane hyperbolic materials. By twisting the bilayer to a critical status where a topological transition occurs, the heat flow can be precisely directed from the source to the drain of choice. At the photonic magic twist angle, the dispersion contours become fat; hence, the collimated group velocity and the canalization effect allow the directional propagation of energy. Furthermore, we demonstrate that the thermal router has good robustness against the variation in distance between the source and the drain particles and is sensitive to the vertex angle of the isosceles triangle. The thermal router mediated by the twisted bilayer structures can be expanded to many-particle systems due to unidirectional energy transmission. Our findings enrich the controllability of noncontact heat exchange at the nanoscale, providing an alternative way for realizing directional heat flow in nanoscale thermal routers and other related heat transfer devices.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"1 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2024-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142888725","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

Functional Analysis and Instructive Selection of a Green Additive Achieve Dual-Interface Modification for Fabricating Self-Powered, High-Performance Perovskite Photodetectors 绿色添加剂的功能分析和指导性选择实现双界面修饰制备自供电高性能钙钛矿光电探测器

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-12-27 DOI: 10.1021/acsphotonics.4c01281

Yong Wang, Guangsheng Liu, Feng Lin, Junhong Lv, Shuming Ye, Yi-Xuan Huang, Jiang Wu, Weiwu Chen, Yu Yang, Wenhua Zhang, Chong Wang

{"title":"Functional Analysis and Instructive Selection of a Green Additive Achieve Dual-Interface Modification for Fabricating Self-Powered, High-Performance Perovskite Photodetectors","authors":"Yong Wang, Guangsheng Liu, Feng Lin, Junhong Lv, Shuming Ye, Yi-Xuan Huang, Jiang Wu, Weiwu Chen, Yu Yang, Wenhua Zhang, Chong Wang","doi":"10.1021/acsphotonics.4c01281","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01281","url":null,"abstract":"The guanidine compound has recently been demonstrated to be effective in passivating interface defects and enhancing the performance and stability of perovskite photodetectors (PPDs). However, the selection and utilization of these compounds are conducted without comprehensive guidance due to an insufficient understanding of the mechanisms and functions of their functional groups. Herein, we evaluated the defect passivation capabilities of guanidine acid (Gua) by analyzing its electrostatic potential and molecular orbitals and then applied it at the interface of all-inorganic perovskite and SnO2 films. The smoother morphology, larger crystal, and improved optoelectronic properties of Gua-modified SnO2 and perovskite films demonstrated the effective defect suppressing of Gua. Moreover, systematic experiment and calculation analyses have revealed that the –C═NH group, with a higher electron cloud density, not only plays a dominant role in healing the oxygen vacancies, free hydroxyl groups, and Sn-related defects on the SnO2 surface but also passivates the Pb2+ and X– defects at the perovskite interface. Consequently, the Gua-modified all-inorganic PPDs achieve an exceptional detectivity of 1.32 × 1013 Jones, a responsivity of 0.30 A/W, and a minimal dark current of 1.55 × 10–9 A/cm2. This work provided valuable insights for customizing Lewis base molecules with crucial functional groups and a universal strategy to estimate and select organic molecules for perovskite photoelectronic devices.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"33 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142888726","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

Integration of InGaN/GaN Microrod Light Emitting Diodes on Flexible and Peelable Substrate via Dielectrophoretic Alignments InGaN/GaN微棒发光二极管在可剥离柔性衬底上的介电泳集成

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-12-27 DOI: 10.1021/acsphotonics.4c02016

Pil-Kyu Jang, Yeong-Hoon Cho, Periyayya Uthirakumar, Soyeon Park, Sangbum Kim, Seungjae Baek, Taehwan Kim, In-Hwan Lee

{"title":"Integration of InGaN/GaN Microrod Light Emitting Diodes on Flexible and Peelable Substrate via Dielectrophoretic Alignments","authors":"Pil-Kyu Jang, Yeong-Hoon Cho, Periyayya Uthirakumar, Soyeon Park, Sangbum Kim, Seungjae Baek, Taehwan Kim, In-Hwan Lee","doi":"10.1021/acsphotonics.4c02016","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c02016","url":null,"abstract":"Flexible GaN-based microlight emitting diodes (μ-LEDs) are making a significant impact in emerging wearable technology due to their excellent performance, characterized by smaller size, fast response, low power consumption, and high luminance. However, most recent studies have focused on the separation and alignment of individual μ-LEDs on rigid substrates, rather than on flexible substrates. This study reports on the fabrication, separation, and horizontal alignment of rod-shaped InGaN/GaN μ-LEDs onto an interdigitated pattern using the dielectrophoresis (DEP) technique on a flexible substrate. A low-surface-energy polytetrafluoroethylene layer is introduced beneath the flexible polyimide layer, enabling physical peel-off from the rigid substrate. A maximum alignment efficiency of 82.3% is achieved on the flexible substrate via conventional DEP with a sinusoidal electric field at 1 MHz. The fabricated flexible horizontally aligned μ-LED (FHAL) chip is transferred onto carbon/copper tape for investigating optical and electrical characteristics. The FHAL chip exhibits consistent brightness, current–voltage, and electroluminescence characteristics even under bending deformation states with a radius of curvature as small as 4.5 mm. The EL spectra of the FHAL chip show a lower full width at half-maximum of 23 nm when operated at 10 V, indicating superior color saturation compared to flexible ultrathin blue organic LEDs (50 nm). Furthermore, stable optoelectrical characteristics are observed even after repeated bending deformation tests up to 1000 times. This work demonstrates that the proposed flexible, small pixel size, and high brightness FHAL chip is pertinent for emerging next-generation wearable display technology.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"19 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142888397","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

Ultrafast and Sensitive Photon Counters Based on Solution-Processed Chalcogenide Thin Films for Multiple Applications 基于溶液处理硫族化物薄膜的多用途超快灵敏光子计数器

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-12-27 DOI: 10.1021/acsphotonics.4c01872

Yujie Yang, Yichen Xu, Haitao Tang, Yuke Zhao, Lian Luo, Jiang Cheng, Qianqian Lin

{"title":"Ultrafast and Sensitive Photon Counters Based on Solution-Processed Chalcogenide Thin Films for Multiple Applications","authors":"Yujie Yang, Yichen Xu, Haitao Tang, Yuke Zhao, Lian Luo, Jiang Cheng, Qianqian Lin","doi":"10.1021/acsphotonics.4c01872","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01872","url":null,"abstract":"Due to their excellent optoelectronic properties and material stability, chalcogenide semiconductors have been successfully introduced for photovoltaics, photodetectors, and photocatalysis. However, current chalcogenide-based photodetectors are still struggling to achieve both low noise and high sensitivity simultaneously, mainly limited by the poor film quality, which is not ideal for practical applications, particularly for weak light detection and photon counting. Here we fabricated high quality Sb2S3 and antimony bismuth sulfide thin films via solution-process and achieved photodiodes with excellent performance. Compared to Sb2S3, the optimized antimony bismuth sulfide detectors exhibit excellent photon counting capability, including high bias voltage tolerance, low noise and dark count rate at −10 V, high sensitivity, fast response (∼180 ns), and superior stability. More importantly, these devices demonstrated great potential for multiple applications, such as photoluminescence lifetime spectroscopy, optical communication, wastewater monitoring, and heart rate detection.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"3 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142888727","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

A Low-Cost and Large-Scale Producible Polymer Multilayer Radiative Cooling Film for Reducing Plant Heat Stress 一种低成本、可大规模生产的降低植物热胁迫的聚合物多层辐射冷却膜

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-12-26 DOI: 10.1021/acsphotonics.4c02043

Shubao Jiang, Ming Li, Zhikun Hu, Fangxin Zhang, Xinyu Zhang, Wen Liu, Altyeb Ali Abaker Omer, Hui Lv

{"title":"A Low-Cost and Large-Scale Producible Polymer Multilayer Radiative Cooling Film for Reducing Plant Heat Stress","authors":"Shubao Jiang, Ming Li, Zhikun Hu, Fangxin Zhang, Xinyu Zhang, Wen Liu, Altyeb Ali Abaker Omer, Hui Lv","doi":"10.1021/acsphotonics.4c02043","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c02043","url":null,"abstract":"The greenhouse effect exacerbates plant heat stress, which poses a serious threat to global food production and atmospheric cycling. Spectrally selective radiative cooling films have been proven to have great potential in alleviating plant heat stress. However, their high cost and slow production speeds due to vacuum-based fabrication techniques have hindered widespread application. Here, we propose a strategy to reduce plant heat stress by using a polymer multilayer radiative cooling film. This film consists of two spectrally selective polymer multilayer film stacks and a polymer emitter. The polymer multilayer film stacks selectively transmit photosynthetically active radiation (52% for wavelengths of 0.4–0.48 μm and 85% for wavelengths of 0.6–0.7 μm) to boost photosynthesis, and the polymer emitter has high infrared emissivity to achieve excellent cooling performance. Field experiments indicated that this film reduces air temperature by 2.3–5.0 °C and the temperature at 3 cm below the soil surface by 2.1–4.1 °C, decreasing soil water evaporation by 11.2–32.4%. Consequently, plant biomass yield increases by 21.1–195.9%. Furthermore, the polymer multilayer radiative cooling film prepared by multilayer coextrusion has the advantages of low cost, fast processing speed, rich variety of candidate materials, and a simple structure. This work accelerates the process of large-scale practical application of passive radiative cooling technology in alleviating plant heat stress and promoting plant growth.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"29 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142886850","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

Quantum Confined Luminescence in Two Dimensions 二维量子受限发光

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-12-26 DOI: 10.1021/acsphotonics.4c01739

Saiphaneendra Bachu, Fatimah Habis, Benjamin Huet, Steffi Y. Woo, Leixin Miao, Danielle Reifsnyder Hickey, Gwangwoo Kim, Nicholas Trainor, Kenji Watanabe, Takashi Taniguchi, Deep Jariwala, Joan M. Redwing, Yuanxi Wang, Mathieu Kociak, Luiz H. G. Tizei, Nasim Alem

{"title":"Quantum Confined Luminescence in Two Dimensions","authors":"Saiphaneendra Bachu, Fatimah Habis, Benjamin Huet, Steffi Y. Woo, Leixin Miao, Danielle Reifsnyder Hickey, Gwangwoo Kim, Nicholas Trainor, Kenji Watanabe, Takashi Taniguchi, Deep Jariwala, Joan M. Redwing, Yuanxi Wang, Mathieu Kociak, Luiz H. G. Tizei, Nasim Alem","doi":"10.1021/acsphotonics.4c01739","DOIUrl":"https://doi.org/10.1021/acsphotonics.4c01739","url":null,"abstract":"Achieving localized light emission from monolayer two-dimensional (2D) transition metal dichalcogenides (TMDs) embedded in the matrix of another TMD has been theoretically proposed but not experimentally proven. In this study, we used cathodoluminescence performed in a scanning transmission electron microscope to unambiguously resolve localized light emission from 2D monolayer MoSe2 nanodots of varying sizes embedded in a monolayer WSe2 matrix. We observed that the light emission strongly depends on the nanodot size, wherein the emission is dominated by MoSe2 excitons in dots larger than 85 nm and by MoSe2/WSe2 interface excitons below 50 nm. Interestingly, at extremely small dot sizes (<10 nm), the electron energy levels in the nanodot become quantized, as demonstrated by a striking blue-shift in interface exciton emission, thus inducing quantum confined luminescence. These results establish controllable light emission from spatially confined 2D nanodots, which holds potential to be generalized to other 2D systems toward future nanophotonic applications.","PeriodicalId":23,"journal":{"name":"ACS Photonics","volume":"4 1","pages":""},"PeriodicalIF":7.0,"publicationDate":"2024-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142888499","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

Free-Space Indium Tin Oxide Electro-Optic Transmission Modulator 自由空间氧化铟锡电光传输调制器

IF 7 1区物理与天体物理

ACS Photonics Pub Date : 2024-12-26 DOI: 10.1021/acsphotonics.4c01515

Martin Thomaschewski, Chaobo Dong, Yaliang Gui, Hao Wang, Hamed Dalir, Volker J. Sorger

引用次数: 0