Controlled Growth of Ultrathin Graphitic Carbon Nitride Films by Chemical Vapor Deposition

IF 8.7 1区 化学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY ACS Materials Letters Pub Date : 2025-02-06 DOI:10.1021/acsmaterialslett.4c02507
Lu Chen, Qiuyue Feng, Paolo Giusto, Dawei Luo, Wei Zhang*, Junjun Liu*, Markus Antonietti and Kai Xiao*, 
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Abstract

Efforts have been relentlessly pursued to develop high-quality and uniform graphitic carbon nitride (g-C3N4) films. In this work, a thermal chemical vapor deposition (CVD) method was developed for the synthesis of homogeneous g-C3N4 films on various substrates using melamine powder as a precursor. The film produced on a silicon wafer is ultrathin, down to 10 nm, with good crystallinity. By changing the precursor and extending the polymerization time, it is also possible to deposit a homogeneous free-standing film on top of anodic aluminum oxide (AAO). The film can be peeled off after the sample is immersed in distilled water for 10 min. Notably, upon characterization, the chemical features and composition were found to closely resemble those of the ideal g-C3N4. This research offers a method for growing g-C3N4 films, which is crucial for broadening their utility beyond catalysis and potentially paving the way for future applications in optoelectronic devices and beyond.

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化学气相沉积法制备超薄氮化碳石墨薄膜
人们一直在不懈地努力开发高质量和均匀的石墨氮化碳(g-C3N4)薄膜。本文采用热化学气相沉积(CVD)方法,以三聚氰胺粉末为前驱体,在各种衬底上合成了均相g-C3N4薄膜。在硅片上生产的薄膜是超薄的,低至10纳米,具有良好的结晶度。通过改变前驱体和延长聚合时间,也可以在阳极氧化铝(AAO)上沉积均匀的独立膜。样品在蒸馏水中浸泡10分钟后,薄膜即可剥落。值得注意的是,经表征,发现其化学特征和组成与理想的g-C3N4非常相似。这项研究提供了一种生长g-C3N4薄膜的方法,这对于扩大其在催化之外的用途至关重要,并有可能为未来在光电器件等领域的应用铺平道路。
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来源期刊
ACS Materials Letters
ACS Materials Letters MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
14.60
自引率
3.50%
发文量
261
期刊介绍: ACS Materials Letters is a journal that publishes high-quality and urgent papers at the forefront of fundamental and applied research in the field of materials science. It aims to bridge the gap between materials and other disciplines such as chemistry, engineering, and biology. The journal encourages multidisciplinary and innovative research that addresses global challenges. Papers submitted to ACS Materials Letters should clearly demonstrate the need for rapid disclosure of key results. The journal is interested in various areas including the design, synthesis, characterization, and evaluation of emerging materials, understanding the relationships between structure, property, and performance, as well as developing materials for applications in energy, environment, biomedical, electronics, and catalysis. The journal has a 2-year impact factor of 11.4 and is dedicated to publishing transformative materials research with fast processing times. The editors and staff of ACS Materials Letters actively participate in major scientific conferences and engage closely with readers and authors. The journal also maintains an active presence on social media to provide authors with greater visibility.
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