Temperature-Dependent Morphology Modulation of MoO₂ from 1D Nanoribbons to 2D Nanoflakes for Enhanced Two-Dimensional Electrode Applications.

IF 4.4 3区材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Nanomaterials Pub Date : 2025-03-04 DOI:10.3390/nano15050392

Di Wu, Tianrong Yi, Yutao Hu, Jianxiong Xie, Yu Deng, Junqi He, Yuting Sun, Jidong Liu, Qiaoyan Hao, Wenjing Zhang

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引用次数: 0

Abstract

The morphology modulation of target crystals is important for understanding their growth mechanisms and potential applications. Herein, we report a convenient method for modulating the morphology of MoO₂ by controlling different growth temperatures. With an increase in growth temperature, the morphology of MoO₂ changes from a nanoribbon to a nanoflake. Various characterization methods, including optical microscopy, atomic force microscopy, (vertical and tilted) scanning electron microscopy, Raman spectroscopy, high-resolution transmission electron microscopy, and selected area electron diffraction, were performed to unveil the morphology modulation and lattice structure of MoO₂. Both MoO₂ nanoribbons and nanoflakes display a standing-up growth mode on c-sapphire substrates, and their basal planes are MoO₂(100). Further investigations into devices based on MoS₂ with Au/Ti/MoO₂ electrodes show the potential applications of MoO₂ in two-dimensional electrodes. These findings are helpful for the synthesis of MoO₂ with different morphologies and applications in the field of optoelectronic nanodevices.

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MoO2从一维纳米带到二维纳米片的温度依赖形态调制用于增强二维电极应用。

目标晶体的形态调制对于理解其生长机制和潜在应用具有重要意义。在此，我们报告了一种通过控制不同生长温度来调节MoO2形态的简便方法。随着生长温度的升高，MoO2的形貌由纳米带变为纳米片。通过光学显微镜、原子力显微镜、（垂直和倾斜）扫描电镜、拉曼光谱、高分辨率透射电镜和选定区域电子衍射等多种表征方法，揭示了MoO2的形态调制和晶格结构。MoO2纳米带和纳米片在c-蓝宝石衬底上均呈直立生长模式，其基面均为MoO2（100）。进一步研究了基于Au/Ti/MoO2电极的MoS2器件，显示了MoO2在二维电极中的潜在应用。这些发现有助于不同形态MoO2的合成及其在光电纳米器件领域的应用。

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

Nanomaterials NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

8.50

自引率

9.40%

发文量

3841

审稿时长

14.22 days

期刊介绍： Nanomaterials (ISSN 2076-4991) is an international and interdisciplinary scholarly open access journal. It publishes reviews, regular research papers, communications, and short notes that are relevant to any field of study that involves nanomaterials, with respect to their science and application. Thus, theoretical and experimental articles will be accepted, along with articles that deal with the synthesis and use of nanomaterials. Articles that synthesize information from multiple fields, and which place discoveries within a broader context, will be preferred. There is no restriction on the length of the papers. Our aim is to encourage scientists to publish their experimental and theoretical research in as much detail as possible. Full experimental or methodical details, or both, must be provided for research articles. Computed data or files regarding the full details of the experimental procedure, if unable to be published in a normal way, can be deposited as supplementary material. Nanomaterials is dedicated to a high scientific standard. All manuscripts undergo a rigorous reviewing process and decisions are based on the recommendations of independent reviewers.