Study of the growth mechanism of a self-assembled and ordered multi-dimensional heterojunction at atomic resolution.

IF 4.1 3区 工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Frontiers of Optoelectronics Pub Date : 2023-11-16 DOI:10.1007/s12200-023-00091-2
Zunyu Liu, Chaoyu Zhao, Shuangfeng Jia, Weiwei Meng, Pei Li, Shuwen Yan, Yongfa Cheng, Jinshui Miao, Lei Zhang, Yihua Gao, Jianbo Wang, Luying Li
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Abstract

Multi-dimensional heterojunction materials have attracted much attention due to their intriguing properties, such as high efficiency, wide band gap regulation, low dimensional limitation, versatility and scalability. To further improve the performance of materials, researchers have combined materials with various dimensions using a wide variety of techniques. However, research on growth mechanism of such composite materials is still lacking. In this paper, the growth mechanism of multi-dimensional heterojunction composite material is studied using quasi-two-dimensional (quasi-2D) antimonene and quasi-one-dimensional (quasi-1D) antimony sulfide as examples. These are synthesized by a simple thermal injection method. It is observed that the consequent nanorods are oriented along six-fold symmetric directions on the nanoplate, forming ordered quasi-1D/quasi-2D heterostructures. Comprehensive transmission electron microscopy (TEM) characterizations confirm the chemical information and reveal orientational relationship between Sb2S3 nanorods and the Sb nanoplate as substrate. Further density functional theory calculations indicate that interfacial binding energy is the primary deciding factor for the self-assembly of ordered structures. These details may fill the gaps in the research on multi-dimensional composite materials with ordered structures, and promote their future versatile applications.

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原子分辨率下自组装有序多维异质结生长机理的研究。
摘要多向异质结材料以其高效、宽禁带调节、低尺寸限制、通用性和可扩展性等优点受到了广泛的关注。为了进一步提高材料的性能,研究人员使用各种各样的技术将不同尺寸的材料组合在一起。然而,对这种复合材料生长机理的研究还比较缺乏。本文以准二维(quasi-2D)锑烯和准一维(quasi-1D)硫化锑为例,研究了多维异质结复合材料的生长机理。这些都是通过简单的热注入法合成的。结果表明,纳米棒在纳米板上沿六重对称方向取向,形成有序的准一维/准二维异质结构。综合透射电子显微镜(TEM)表征证实了Sb2S3纳米棒与Sb纳米板作为衬底之间的化学信息和取向关系。进一步的密度泛函理论计算表明,界面结合能是有序结构自组装的主要决定因素。这些细节可以填补具有有序结构的多维复合材料研究的空白,促进其未来的多用途应用。
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来源期刊
Frontiers of Optoelectronics
Frontiers of Optoelectronics ENGINEERING, ELECTRICAL & ELECTRONIC-
CiteScore
7.80
自引率
0.00%
发文量
583
期刊介绍: Frontiers of Optoelectronics seeks to provide a multidisciplinary forum for a broad mix of peer-reviewed academic papers in order to promote rapid communication and exchange between researchers in China and abroad. It introduces and reflects significant achievements being made in the field of photonics or optoelectronics. The topics include, but are not limited to, semiconductor optoelectronics, nano-photonics, information photonics, energy photonics, ultrafast photonics, biomedical photonics, nonlinear photonics, fiber optics, laser and terahertz technology and intelligent photonics. The journal publishes reviews, research articles, letters, comments, special issues and so on. Frontiers of Optoelectronics especially encourages papers from new emerging and multidisciplinary areas, papers reflecting the international trends of research and development, and on special topics reporting progress made in the field of optoelectronics. All published papers will reflect the original thoughts of researchers and practitioners on basic theories, design and new technology in optoelectronics. Frontiers of Optoelectronics is strictly peer-reviewed and only accepts original submissions in English. It is a fully OA journal and the APCs are covered by Higher Education Press and Huazhong University of Science and Technology. ● Presents the latest developments in optoelectronics and optics ● Emphasizes the latest developments of new optoelectronic materials, devices, systems and applications ● Covers industrial photonics, information photonics, biomedical photonics, energy photonics, laser and terahertz technology, and more
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