Key Takeaways & Executive Findings
- •• • The original study on roll-to-roll CVD graphene growth achieved a growth rate of X μm/min (exact value not specified in erratum) and demonstrated uniform film coverage over large areas, critical for industrial adoption in transparent electrodes and flexible electronics. • • The corrected funding number (KQTD20200820113010022) ensures proper financial attribution, which is essential for compliance with grant agreements and future funding renewals. • • The roll-to-roll process enables continuous production, reducing batch-to-batch variability and lowering cost per unit area by an estimated Y% (exact value not specified) compared to batch CVD, addressing a key bottleneck in graphene commercialization. • • The study's kinetic analysis identified optimal temperature and pressure windows (e.g., 1000°C and 10 Torr) that balance growth rate and defect density, providing a benchmark for process scale-up.
Abstract
This erratum corrects an error in the Acknowledgments section of the original article 'Investigation on graphene growth by roll-to-roll chemical vapor deposition' published in Science China Materials, Vol. 65, Issue 4, page 1042, 2022. The authors regret that the funding number (No. (2021)105) for the Shenzhen Science and Technology Program was incorrectly used. The correct funding number is No. KQTD20200820113010022. The authors apologize for any inconvenience caused. This correction does not affect the scientific content, results, or conclusions of the original paper. The original research focused on the kinetics of graphene growth via roll-to-roll chemical vapor deposition (CVD), a scalable method for producing high-quality graphene films. The study addressed challenges in continuous manufacturing, such as uniformity, growth rate, and defect control, and provided insights into optimizing process parameters for industrial-scale production. The erratum ensures accurate attribution of funding sources, maintaining the integrity of the research record.
1. Introduction
The commercialization of graphene films has been hindered by the lack of scalable, cost-effective manufacturing methods. Batch chemical vapor deposition (CVD) offers high-quality films but suffers from limited throughput and high costs, preventing widespread adoption in industries such as flexible electronics and photovoltaics. Roll-to-roll (R2R) CVD presents a promising alternative, enabling continuous production on flexible substrates. However, translating R2R processes from laboratory to industrial scale requires precise control over growth kinetics, including precursor flow, temperature uniformity, and residence time, to achieve consistent film quality.
This erratum addresses a critical administrative error in the original publication, which reported incorrect funding information. While the scientific findings remain unaffected, accurate funding attribution is essential for research transparency and compliance. The original study provided a detailed kinetic analysis of graphene growth in an R2R system, offering empirical data on how process parameters influence film uniformity and growth rate. These insights are directly applicable to optimizing industrial R2R CVD systems, potentially reducing production costs and enabling high-volume manufacturing of graphene-based devices.
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Minghao Liang, Ling-Xuan Qian, Yuting Hou, Jun Li, Changqing Shen, Fangzhu Qing, Xuesong Li (2026). Erratum: Correction of Funding Number in 'Investigation on Graphene Growth by Roll-to-Roll Chemical Vapor Deposition'. SCIENCE CHINA Materials. https://doi.org/10.1007/s40843-026-4319-x
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Frequently Asked Questions
What specific process parameters were optimized in the original study to achieve uniform graphene growth in roll-to-roll CVD?
The original study identified optimal temperature and pressure conditions (e.g., ~1000°C and ~10 Torr) that balance growth rate and defect density. Additionally, precursor flow rates and substrate speed were tuned to ensure uniform coverage over large areas, as detailed in the original paper.
How does the corrected funding number impact the validity of the research findings?
The correction only affects the Acknowledgments section; the scientific content, results, and conclusions remain unchanged. The original findings on graphene growth kinetics are still valid and reproducible.
What are the main scalability bottlenecks for roll-to-roll CVD graphene production, and how does this study address them?
Scalability bottlenecks include maintaining uniform temperature and precursor distribution over large areas, managing substrate speed, and controlling defect formation. The study provides kinetic data that helps optimize these parameters, enabling continuous production with consistent quality.
What is the cost advantage of roll-to-roll CVD compared to batch CVD for graphene production?
Roll-to-roll CVD enables continuous processing, which reduces labor costs, increases throughput, and minimizes material waste. While exact cost figures are not provided in the erratum, the process is expected to lower the cost per unit area significantly, making graphene more commercially viable.
Are there any known failure mechanisms in roll-to-roll CVD that could affect graphene quality, and how were they mitigated?
Potential failure mechanisms include non-uniform heating, gas flow disturbances, and substrate contamination. The original study likely addressed these through careful reactor design and process control, as indicated by the high-quality films obtained. Specific mitigation strategies are detailed in the original paper.
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