Interferometric Near-field Fano Spectroscopy of Single Halide Perovskite Nanoparticles

IF 9.1 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Nano Letters Pub Date : 2024-11-28 DOI:10.1021/acs.nanolett.4c04491

Jinxin Zhan, Tom Jehle, Sven Stephan, Ekaterina Tiguntseva, Sam S. Nochowitz, Petra Groß, Juanmei Duan, Sergey Makarov, Christoph Lienau

{"title":"Interferometric Near-field Fano Spectroscopy of Single Halide Perovskite Nanoparticles","authors":"Jinxin Zhan, Tom Jehle, Sven Stephan, Ekaterina Tiguntseva, Sam S. Nochowitz, Petra Groß, Juanmei Duan, Sergey Makarov, Christoph Lienau","doi":"10.1021/acs.nanolett.4c04491","DOIUrl":null,"url":null,"abstract":"Semiconducting halide perovskite nanoparticles support Mie-type resonances that confine light on the nanoscale in localized modes with well-defined spatial field profiles yet unknown near-field dynamics. We introduce an interferometric scattering-type near-field microscopy technique to probe the local electric field dynamics at the surface of a single MAPbI<sub>3</sub> nanoparticle. The amplitude and phase of the coherent light scattering from such modes are probed in a broad spectral range and with high spatial resolution. In the spectral domain, we uncover a Fano resonance with a 2π phase jump. In the near-field dynamics, this Fano resonance gives rise to a destructive interference dip after a few femtoseconds. Mie theory suggests that the interference between electric quadrupole and magnetic dipole modes of the particle, with spectra affected by resonant interband absorption of MAPbI<sub>3</sub>, lies at the origin of this effect. Our results open up a new approach for probing local near-field dynamics of single nanoparticles.","PeriodicalId":53,"journal":{"name":"Nano Letters","volume":"33 1","pages":""},"PeriodicalIF":9.1000,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Nano Letters","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1021/acs.nanolett.4c04491","RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}

引用次数: 0

Abstract

Semiconducting halide perovskite nanoparticles support Mie-type resonances that confine light on the nanoscale in localized modes with well-defined spatial field profiles yet unknown near-field dynamics. We introduce an interferometric scattering-type near-field microscopy technique to probe the local electric field dynamics at the surface of a single MAPbI₃ nanoparticle. The amplitude and phase of the coherent light scattering from such modes are probed in a broad spectral range and with high spatial resolution. In the spectral domain, we uncover a Fano resonance with a 2π phase jump. In the near-field dynamics, this Fano resonance gives rise to a destructive interference dip after a few femtoseconds. Mie theory suggests that the interference between electric quadrupole and magnetic dipole modes of the particle, with spectra affected by resonant interband absorption of MAPbI₃, lies at the origin of this effect. Our results open up a new approach for probing local near-field dynamics of single nanoparticles.

Abstract Image

查看原文本刊更多论文

单卤化物钙钛矿纳米颗粒的干涉近场法诺光谱

半导体卤化物钙钛矿纳米粒子支持mie型共振，将光限制在纳米尺度的局部模式下，具有明确的空间场剖面，但未知的近场动力学。我们介绍了一种干涉散射型近场显微镜技术来探测单个MAPbI3纳米颗粒表面的局部电场动力学。在较宽的光谱范围内，以较高的空间分辨率探测了这种模式下相干光散射的幅度和相位。在谱域中，我们发现了一个具有2π相位跳变的Fano共振。在近场动力学中，这种法诺共振在几飞秒后产生破坏性干涉下降。Mie理论认为，粒子的电四极子模式和磁偶极子模式之间的干扰，以及光谱受MAPbI3共振带间吸收的影响，是这种效应的根源。我们的研究结果为探测单个纳米颗粒的局部近场动力学开辟了一条新的途径。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Nano Letters 工程技术-材料科学：综合

CiteScore

16.80

自引率

2.80%

发文量

1182

审稿时长

1.4 months

期刊介绍： Nano Letters serves as a dynamic platform for promptly disseminating original results in fundamental, applied, and emerging research across all facets of nanoscience and nanotechnology. A pivotal criterion for inclusion within Nano Letters is the convergence of at least two different areas or disciplines, ensuring a rich interdisciplinary scope. The journal is dedicated to fostering exploration in diverse areas, including: - Experimental and theoretical findings on physical, chemical, and biological phenomena at the nanoscale - Synthesis, characterization, and processing of organic, inorganic, polymer, and hybrid nanomaterials through physical, chemical, and biological methodologies - Modeling and simulation of synthetic, assembly, and interaction processes - Realization of integrated nanostructures and nano-engineered devices exhibiting advanced performance - Applications of nanoscale materials in living and environmental systems Nano Letters is committed to advancing and showcasing groundbreaking research that intersects various domains, fostering innovation and collaboration in the ever-evolving field of nanoscience and nanotechnology.