Emissive Chalcogenide Perovskite Nanowires

IF 9.6 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Nano Letters Pub Date : 2025-04-18 DOI:10.1021/acs.nanolett.5c00815

Yuxin Jiang, Han K. D. Le, Lior Verbitsky, Hannah DeVyldere, Alexander M. Oddo, Bruce Pan, Hee-geun Song, Cheng Zhu, Heqing Zhu, Mary C. Scott, Peidong Yang

引用次数: 0

Abstract

Efficient and stable one-dimensional semiconductor nanowires are critical for the development of next-generation on-chip optoelectronics. Here, we report a synthetic approach to produce high-quality nanowires based on chalcogenide perovskite via a vapor phase reaction inside a sealed ampule. An epitaxial vapor-phase growth mechanism is proposed. The nanowires are shown to be single crystalline and highly structurally stable, with a preferential growth along the [010] direction. Red and green photoluminescence (PL) is observed from BaZrS₃ and SrHfS₃ nanowires, respectively, and the emission is shown to be tunable with varying compositions. PL lifetime is measured by fitting the decay curve with a biexponential model. The longer radiative recombination lifetime component is on the time scale of nanoseconds, indicating good nanowire sample quality with a promising potential for optoelectronic applications.

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发射型硫系钙钛矿纳米线

高效、稳定的一维半导体纳米线对于下一代片上光电子技术的发展至关重要。在这里，我们报告了一种基于硫系钙钛矿的合成方法，通过在密封的安瓿内进行气相反应来生产高质量的纳米线。提出了一种外延气相生长机理。纳米线是单晶的，结构高度稳定，沿[010]方向优先生长。从BaZrS3和SrHfS3纳米线中分别观察到红色和绿色的光致发光（PL），并且发射显示出随不同成分可调谐。通过用双指数模型拟合衰减曲线来测量PL寿命。较长的辐射复合寿命成分在纳秒的时间尺度上，表明纳米线样品质量良好，具有良好的光电应用潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.