Center for Nanochemistry, Beijing Science and Engineering Center for Nanocarbons, Beijing National Laboratory for Molecular Sciences, College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, P. R. China.
Adv Mater. 2019 Oct;31(42):e1803758. doi: 10.1002/adma.201803758. Epub 2019 Feb 18.
Graphdiyne (GDY) is an emerging carbon allotrope in the graphyne (GY) family, demonstrating extensive potential applications in the fields of electronic devices, catalysis, electrochemical energy storage, and nonlinear optics. Synthesis of few-layered GDY is especially important for both electronic applications and structural characterization. This work critically summarizes the state-of-art of GDY and focuses on exploring approaches for few-layered GDY synthesis. The obstacles and challenges of GDY synthesis are also analyzed in detail. Recently developed synthetic methods are discussed such as i) the copper substrate-based method, ii) the chemical vapor deposition (CVD) method, iii) the interfacial construction method, and iv) the graphene-templated method. Throughout the discussion, the superiorities and limitations of different methods are analyzed comprehensively. These synthetic methods have provided considerable inspiration approaching synthesis of few-layered or single-layered GDY film. The work concludes with a perspective on promising research directions and remaining barriers for layer-controlled and morphology-controlled synthesis of GDY with higher crystalline quality.
二维炔烃（GDY）是炔烃（GY）家族中的一种新兴碳同素异形体，在电子器件、催化、电化学储能和非线性光学等领域具有广泛的潜在应用。少层 GDY 的合成对于电子应用和结构表征都尤为重要。本文批判性地总结了 GDY 的研究现状，并重点探讨了少层 GDY 合成的方法。同时，还详细分析了 GDY 合成的障碍和挑战。文中讨论了最近开发的合成方法，如 i）基于铜衬底的方法、ii）化学气相沉积（CVD）方法、iii）界面构建方法和 iv）石墨烯模板法。在讨论过程中，全面分析了不同方法的优缺点和局限性。这些合成方法为合成少层或单层 GDY 薄膜提供了重要的启示。最后，本文对具有更高结晶质量的 GDY 的层控和形貌控合成的有前景的研究方向和剩余障碍进行了展望。
