Nature Photonics最新文献_第6页

Photonic solutions help fight climate crisis 光子解决方案有助于应对气候危机

IF 32.3 1区物理与天体物理

Nature Photonics Pub Date : 2024-09-04 DOI: 10.1038/s41566-024-01509-9

Giulia Tagliabue, Harry A. Atwater, Albert Polman, Emiliano Cortés

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An all-silicon solution 全硅解决方案

IF 32.3 1区物理与天体物理

Nature Photonics Pub Date : 2024-09-04 DOI: 10.1038/s41566-024-01511-1

Mingyang Cai, Fengnian Xia

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Dual-comb wonders 双梳奇迹

IF 32.3 1区物理与天体物理

Nature Photonics Pub Date : 2024-09-04 DOI: 10.1038/s41566-024-01519-7

Rachel Won

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Vibrational imaging goes deeper and finer 振动成像更深更细

IF 32.3 1区物理与天体物理

Nature Photonics Pub Date : 2024-09-04 DOI: 10.1038/s41566-024-01498-9

Yasutaka Kitahama, Keisuke Goda

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Shrinking time-domain spectroscopy to atomic dimensions 将时域光谱缩小到原子尺寸

IF 32.3 1区物理与天体物理

Nature Photonics Pub Date : 2024-09-04 DOI: 10.1038/s41566-024-01510-2

Susanne Baumann, Sebastian Loth

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Chiral nonlinear optical inheritance 手性非线性光学继承

IF 32.3 1区物理与天体物理

Nature Photonics Pub Date : 2024-09-04 DOI: 10.1038/s41566-024-01514-y

Etienne Brasselet

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Real-time detection and discrimination of radioactive gas mixtures using nanoporous inorganic scintillators 使用纳米多孔无机闪烁体对放射性气体混合物进行实时检测和鉴别

IF 32.3 1区物理与天体物理

Nature Photonics Pub Date : 2024-09-02 DOI: 10.1038/s41566-024-01507-x

Raphael Marie-Luce, Pavlo Mai, Frederic Lerouge, Yannis Cheref, Sylvie Pierre, Benoit Sabot, Frederic Chaput, Christophe Dujardin

{"title":"Real-time detection and discrimination of radioactive gas mixtures using nanoporous inorganic scintillators","authors":"Raphael Marie-Luce, Pavlo Mai, Frederic Lerouge, Yannis Cheref, Sylvie Pierre, Benoit Sabot, Frederic Chaput, Christophe Dujardin","doi":"10.1038/s41566-024-01507-x","DOIUrl":"10.1038/s41566-024-01507-x","url":null,"abstract":"The nuclear industry’s expansion to encompass carbon-free electricity generation from small modular reactors and nuclear fuel reprocessing necessitates enhanced detection and monitoring of pure beta-emitting radioactive elements such as 3H and 85Kr; this endeavour is crucial for nuclear safety authorities tasked with environmental monitoring. However, the short range of electrons emitted by these gases makes detection challenging. Current methods, such as ionization chambers and liquid scintillation, do not offer at the same time good sensitivity, real-time analysis and ease of implementation. We demonstrate an approach using a gas–solid mixture to overcome these limitations. We synthetized a transparent and scintillating nanoporous material, an aerogel of Y3Al5O12:Ce4+, and achieved real-time detection with an efficiency of 96% for 85Kr and 18% for 3H. The method reaches a sensitivity below 100 mBq per cm3 over 100 s measurement time. We are able to measure simultaneously as mixtures containing both 3H and 85Kr a capability not possible previously. Our results demonstrate a compact and robust detection system for inline measurement of strategic radioactive gases. This combination of concept and method enhances nuclear power plant management and contributes to environmental safeguarding. Beyond the detection issues, this concept opens a wide field of new methods for radionuclide metrology. Using a gas–solid mixture approach, researchers used a transparent, scintillating nanoporous material for real-time detection of 85Kr and 3H, two pure beta emitters. They also simultaneously measure a mixture of them. The broadly applicable approach may be useful for nuclear industry and environmental safeguarding.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"18 10","pages":"1037-1043"},"PeriodicalIF":32.3,"publicationDate":"2024-09-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.com/articles/s41566-024-01507-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142118091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Author Correction: Onset of vortex clustering and inverse energy cascade in dissipative quantum fluids 作者更正：耗散量子流体中涡旋簇的开始和反向能量级联

IF 32.3 1区物理与天体物理

Nature Photonics Pub Date : 2024-08-28 DOI: 10.1038/s41566-024-01528-6

R. Panico, P. Comaron, M. Matuszewski, A. S. Lanotte, D. Trypogeorgos, G. Gigli, M. De Giorgi, V. Ardizzone, D. Sanvitto, D. Ballarini

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Anti-perovskites with long carrier lifetime for ultralow dose and stable X-ray detection 用于超低剂量和稳定 X 射线探测的长载流子寿命反超晶石

IF 32.3 1区物理与天体物理

Nature Photonics Pub Date : 2024-08-23 DOI: 10.1038/s41566-024-01482-3

Lang Liu, Shi-Yu Liu, Yuanpeng Shi, Cui-Ling Fang, Shan Zhao, Huai-Yi Shen, Ming-Xing Chen, Ze-Jie Wang, Yan Ma, Yan Liu, Yan Feng, Jiang Tang, Heng-Yun Ye, Guangda Niu

{"title":"Anti-perovskites with long carrier lifetime for ultralow dose and stable X-ray detection","authors":"Lang Liu, Shi-Yu Liu, Yuanpeng Shi, Cui-Ling Fang, Shan Zhao, Huai-Yi Shen, Ming-Xing Chen, Ze-Jie Wang, Yan Ma, Yan Liu, Yan Feng, Jiang Tang, Heng-Yun Ye, Guangda Niu","doi":"10.1038/s41566-024-01482-3","DOIUrl":"10.1038/s41566-024-01482-3","url":null,"abstract":"Halide perovskites have shown promising potential for direct X-ray detection due to their high X-ray absorption coefficient, low trap states and convenient fabrication process. However, it is still a challenge to achieve high sensitivity, low dark current and low detection limit in a single material. The deep reason for this is the trade-off between the material’s μτ product and resistivity. Here we report the construction of an organic–inorganic hybrid anti-perovskite ((2-Habch)3Cl(PtI6)) with indirect transition and low orbital symmetry at the band edge to achieve an ultralong intrinsic lifetime and thus break the trade-off. (2-Habch)3Cl(PtI6) achieves an unprecedented long carrier lifetime of >3 ms, leading to a large μτ product of 6.25 × 10−3 cm2 V−1 and high resistivity of 1012 Ω cm, outperforming most X-ray detection materials. These properties enabled the development of X-ray detectors that simultaneously achieve an ultralow dark current of 0.21 nA cm−2, high sensitivity of 1.0 × 104 µC Gyair−1 cm−2, ultralow detection limit of 2.4 nGyair s−1 and excellent operational stability with no observable baseline drift, outperforming state-of-the-art perovskite single-crystal detectors. The rare combination of high performance in almost every figure of merit in the anti-perovskite-based X-ray detector could enable new-generation X-ray detection systems. The researchers synthesize organic–inorganic hybrid inverse perovskites that exhibit excellent carrier lifetime and mobility–lifetime product and high resistivity, enabling stable X-ray detectors with performance arguably outperforming state-of-the-art perovskite single-crystal detectors.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"18 9","pages":"990-997"},"PeriodicalIF":32.3,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142042674","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

Deep-blue organic light-emitting diodes for ultrahigh-definition displays 用于超高清显示器的深蓝色有机发光二极管

IF 32.3 1区物理与天体物理

Nature Photonics Pub Date : 2024-08-19 DOI: 10.1038/s41566-024-01508-w

Tao Hua, Xiaosong Cao, Jingsheng Miao, Xiaojun Yin, Zhanxiang Chen, Zhongyan Huang, Chuluo Yang

{"title":"Deep-blue organic light-emitting diodes for ultrahigh-definition displays","authors":"Tao Hua, Xiaosong Cao, Jingsheng Miao, Xiaojun Yin, Zhanxiang Chen, Zhongyan Huang, Chuluo Yang","doi":"10.1038/s41566-024-01508-w","DOIUrl":"10.1038/s41566-024-01508-w","url":null,"abstract":"Multiple-resonance thermally activated delayed fluorescence materials have emerged as promising candidates for next-generation ultrahigh-definition displays due to their narrowband emission and triplet-harvesting capability. However, achieving optimal colour purity and device efficiency for blue multiple-resonance thermally activated delayed fluorescence emitters has presented challenges. Here we demonstrate an effective approach to attain superior deep-blue molecules by constructing twisted-boron-/nitrogen-/oxygen-embedded higher-order fused-ring frameworks with fully resonating structures. The optimized emitter exhibits high rigidity and minimized bonding/antibonding character for ultrasharp emission, along with a small singlet–triplet gap and large spin–orbit couplings for rapid spin flip. This combination results in deep-blue emission at 458 nm with a narrow full-width at half-maximum of 12 nm in solution and a reverse intersystem crossing rate constant of 2.29 × 106 s−1, on par with those of heavy-atom-based multiple-resonance thermally activated delayed fluorescence molecules. The related single-unit organic light-emitting diode achieves an external quantum efficiency of 39.2% with colour coordinates of (0.141, 0.050) and a narrow full-width at half-maximum of 14 nm. Furthermore, a two-unit stacked tandem hyperfluorescence organic light-emitting diode achieves an ultrahigh external quantum efficiency of 74.5% with low efficiency roll-off at high luminance values. This performance represents a remarkable balance between efficiency and colour purity in the deep-blue region, marking an important step towards power-efficient ultrawide-colour-gamut displays. Highly twisted multi-boron-based multiple-resonance thermally activated delayed fluorescence emitters enable deep-blue organic light-emitting diodes with high colour purity, a narrow full-width at half-maximum of 14 nm and a peak external quantum efficiency of 39.2%.","PeriodicalId":18926,"journal":{"name":"Nature Photonics","volume":"18 11","pages":"1161-1169"},"PeriodicalIF":32.3,"publicationDate":"2024-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142002835","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